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583 Cards in this Set

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What is sensation?

Registering stimulation of the senses

Perception

Processing and interpretating sensory information

Cognition

Using perceived info to learn, classify, comprehend

Process for electromagnetic energy to be detected

Through eyes, photoreceptor detect, processed in the primary visual cortex

2 processes for chemical composition to be detected

On tongue, chemoreceptors detect, processed by gustatory cortex


In nose, chemoreceptors detect, processed by olfactory cortex

Process for air pressure waves to be detected

In ears, mechanoreceptors [because they move] detect, auditory cortex processes

Process for tissue distortion to be detected

Touch (in hands e.g.) detected in mechanoreceptors and thermoreceptors, processed in somatosensory cortex

Process for gravity and accelaration to be detected

Movement detected in mechanoreceptors, processed in the temporal cortex

What is transduction?

Conversion of environmental energy to nerve signals

All senses except which pass through the thalamus?

Smell

Process of sense organ to brain

Environmental energy


Receptors


Intermediate neurons


Thalamus: neuron mass in middle of brain


Receiving area in cortex


Secondary cortex


Higher cortex

Feedback for senses process

Higher cortex


Secondary cortex


Recieving area in cortex


Thalamus

What is bottom up processing?

Perception starts with physical characteristics of stimulus and basic sensory processes (e.g. feature detectors)

What did Gibson say about direct perception? (1950s)

The info coming from sensory receptors is enough for perception to happen - complex thought not necessary


The environment contains sufficient cues to provide context to aid perception

What is top-down processing?

Perceived constructs their understanding of external stimuli based on past experience and knowledge

What did Gregory (1966) say about top-down processing?

'Perception is not determined simply by stimulus patterns, rather it is a dynamic searching for the best interpretation of the available data'



(What we experience is ambiguous, brain fills in the gaps)

10 ways to investigate sensation and perception

Staining


Single-cell recordings (electrophysiology)


fMRI


Lesion studies


Optical Imaging/near infra-red spectroscopy (NIRS)


ERP from EEG (Event-relatee potential from electro-encephalogram)


Psychophysics


Illusions and introspection


Computation and modelling


Virtual lesions

What is staining?

Take dead brain cells and stain different cells in certain ways. Allows us to look at structure of the cells (allowed us to discover visual cortex had layers)

What's the process of electrophysiology?

Measure action potentials coming from live particular neurons


E.g. play sounds and see which sounds that neuron responds to


Helps to understand the very low/bottom level of coding

Process of fMRI

Relation of oxygenated/unoxygenated blood, where activity is in the brain, look at pattern of activity

Lesion study example

Phineas Gage

Optical imaging/near infra-red spectroscopy process (NIRS)

Shine red light into skull, able to penetrate to brain, brain is sensed and can detect blood flow, gives a good idea of what parts of the brain is active

What's the process or ERP from EEG

EEG - measure the electrolytes from the scalp


See how events effect pattern of activity

What is Psychophysics?

The scientific study of the relationship between physical stimuli and perceptual phenomenon


Get people to make decisions about physical stimuli

What are virtual lesions?

Lesions of the brain created temporarily


How are virtual lesions examined

TMS (Transcranial Magnetic Stimulation) Pulses of magnetic energy disrupt activity in a small part of the brain for a short period


Can be used to investigate sensation and perception

Example of virtual lesions by TMS

Biological motion



Picture = point light walker (can be made to look male/female)



TMS over the STS (posterior superior temporal sulcus (STS)) seems to disrupt how well people can detect biological motion - people can't see the walking person

What's the problems do the brain have to solve from sensory info

Eye has a 2d surface, world is 3d



2 objects can project same shape to retina but be completely different

What can computer vision do?

Can pick out and identify faces in a picture


Helps us to understand the processes

3 labels in this picture

Retina



Lateral Geniculate Nucleus (in thalamus)



Primary Visual Cortex (V1)

Pupil description

Where the light enters the eye

Iris description

Adjustable aperture (gap)


Constricts in high light to make pupil smaller

Label

Cornea and lens job

Focus light on retina

Ciliary muscles job

Change shape of lens to bring objects into focus at different distances

Retina contains

Photoreceptors (rods and cones)

What are photoreceptors

Cells with light sensitive photopigments in outer segments

Label

Rods job

Contain rhodopsin which respond to dim light

Where are there no rods

In fovea

Cones desription

3 types with photopigments most sensitive to different wavelengths (long, medium, short), daytime, colour vision,


See most of the detail, packed tightly into fovea

What stage are the retinal ganglion cells in retinal processing?

Last

2 main types of ganglion cells

Large parasol ganglion cells


Small midget ganglion cells

Difference between what the parasol ganglion cells and midget ganglion cells do

Code different properties of the stimuli


Have different "receptive fields" (midgets have smaller)

Kuffler's (1953) recordings of cat ganglion cells

What did Kuffler's (1953) findings show

On-centre, off-surround retinal ganglion cells receptive field = lateral inhibition

Properties if retinal ganglion processing

Poor at spotting gradual change


Good at picking out sharp edges


Filters the input for useful info

What shows the perceptual effects of retinal ganglion cells (1)

Hermann Grid

What makes the Hermann grid illusion go away

Wiggly boxes

What shows the perceptual effects of retinal ganglion cells (2)

Issue with illusion of simultaneous contrast

Not just immediate surrounding but also background - table shadow makes tile look even lighter

Pathways in the Lateral Geniculate Nucleus (in thalamus) - LGN

Parvocellular


Magnocellular


Konicellular

Where do midget ganglion cells project to?

Parvocellular pathway

Where do parasol ganglion cells project to?

Magnocellular pathway

What info does the magnocellular cells send?

Movement and flicker


and flicker


M

What info does the parvocellular cells send?

Detail and colour

Why are midget ganglion cells suited for detail

Smaller reflective fields

Why are parasol ganglion cells suited for movement?

Large reflective fields, need to know about movement quickly

Other names for the primary visual cortex

V1


Striate cortex

What is retrinotopy

Mapping of visual input created by the brain


Retinal mapping

How good is retrinotopy

Very biased, lots of information about what focusing on, very little about the periphery

What did Hubel and Wiesels investigation of visual cortex entail

Recording action potential in V1 cells in cats while presenting a light bar stimulus on a screen

What did Hubel and Wiesel find?

There are cells in V1 that fire only when the stimulus was presented in a certain orientation

What did instrinstic optical imaging show on V1

There are representations of all the points in the visual field and a representation of all the orientations of those points


So there are cells in V1 that respond to all the different points and all their orientations

What is the role of development on visual cortex

Critical period


If a kitten is raised in a tube with only vertical lines, won't develop cells that respond to horizontal lines

What are the 2 streams of processing in V1

Dorsal (where)


Ventral (what)

Visual processing hierarchy

Dots


Lines


Shapes


Faces

What is the hoffding function

What gestalt psychologists referred to as the problem of how we connect what we perceive to what is stored in out mind


Whether perception is as simple as associating what is seen to what is remembered

What did Gibson observe to develop theory of direct perception

Infants who quickly developed perceptual awareness despite lacking much prior knowledge and experience

What is the template theory of perception

Suggests we have templates stored in our minds - highly detailed models of how the world works (patterns). Recognise patterns by comparing it to templates - select 1 that matches exactly what we see


Chunk-based theory, store info in chunks

What is the feature matching theory of perception

We attempt to match features of a pattern to stored features, rather than to match an entire template

Neuroscience evidence of direct perception

Mirror neurons (neurons that fire both when an animal act and when the animal observer the same action performed by others) = can understand what we observing before we can form hypotheses on it.



Separate lateral occipital pathways (What pathways) for processing form, colour and texture; can judge independently of other properties.

Neuroscience evidence of feature-matching theories

Gnostic units (grandmother cells) that recognise a complex but specific object or concept - Jennifer Aniston neuron

Recognition By Components (RBC) Theory of perception

Seeing with the help of geons (3D geometric shapes e.g. cones bricks) - Biederman

Neuroscience evidence of RBC Theory

Neurons in inferior temporal cortex sensitive to viewpoint-invariant properties


(Contradicted by fact some neurons respond to only 1 viewpoint and response decreases as viewpoint changes)

Bottom up theories of perception

Direct/ecological perception


Template theories


Feature-matching theories


RBC theory

6 top down theories to perception

Constructive perception


Perceputal constancies


Context effect


Object-superiority effect


Word-superiority effect


Configural-superiority effect

What is constructive perception

Expectations and intelligence influence how we perceive the world; based on what we sense, know and can infer

What is perceptual constancies

See things as same size/colour despite changing

What are context effect

Easier to recognise a target object when it is in an expected context


Palmer- people identified objects easier if they had previously seen objects appropriate for context rather than inappropriate

What is the object-superiority effect

Easier to recognise target line when it forms part of a 3D rather than a 2D pattern

What is the word-superiority effect

Easier to recognise target letter when it is part of a string of letters that form a word

What is the configural-superiority effect

Objects presented in configurations are easier to recognise than objects presented in isolation (picking dif line is easier when lines form triangles rather than just being lines in isolation)

What is human Trichromacy

3 cone types, maximally sensitive at short, middle and long wavelengths

Short wavelength cones peak in which colour?

Blue

Middle wavelength cones peak in which colour?

Green

Long wavelength cones peak in which colour?

Yellow

What is the evolution of trichomacy related to (cause)?

Foraging for ripe fruit/berries


Dichromatic cone types 'blue and yellow'


Trichomacy ('yellow' split into 'red' and 'green")



What is the evolution of trichomacy related to (effect)?

Bare skin: socio-sexual signals from blood oxygenated


Monochromatic - often nocturnal


Trichomatic primates tend to have more had a skin on faces vs dichromatic

What colours do monochromats see?

Black and white

What's a dichromatic lacking 'red' (long wavelengths)

Protanopia

What's a dichromat lacking green cones (medium)

Deuteranopia

What's a dichromat lacking in blue cones (short)

Tritanopia

What are the 2 types of anomolous trichromats

Deuteranomoly


Protanomoly

What is deuteranomoly

When the medium cone shifts towards long

What is protanomoly

When the long cone shifts towards medium cone

Is anomalous trichomacy a genetic condition?

Yes - boys 8%, women <1%

How does colour perception change over aging

Becomes more yellow

Is there a cure for colour vision deficiency?

Male squirrel monkeys (dicromatic)


Red opsin gene, virus and DNA injected into some cones


Gene therapy turns dichromats into trichromats





What is human tetrachromacy?

Having 4 cones - some women have 4, usual 3 and shifted red or green cone type


Doesn't mean can see more colours

What's does an anomaloscope measure?

Cone sensitivity

What are the 3 'cone-opponent' channels (colours)

'Red-green'


'Blue-yellow'


'Black-white'

What's the name of the red-green channel

Cherry-teal (Long medium axis)

What's the name of the blue yellow channel

Lime-violet (S axis)

Whats the name of the black white channel?

Achromatic (luminance axis)

What are the cells in the LGN for red green colours?

Parvocellular (midget cells)

What are the cells in the LGN for the yellow-blue colour

Koniocellular

What are the cells in the LGN for luminance

Magnocellular (parasol cells)

What's a test that demonstrates cone-opponency?

Colour affect-effect visual illusion

What processing stream does colour go to when sent to temporal cortex

Ventral processing stream (what pathways)

What is cerebral achromatopsia

Damage to small cortical region, loss of colour perception


Cones work, activation at V1 in response to colour, but things don't appear coloured

What's the top-down effect on colour

Memory of colour effects perception of colour


E.g. if asked to make banana gray, people make it blueish-gray

2 theories on why we prefer some colours more than others

Biological components theory


Ecological valence theory

What is the biological components theory of aesthetic response to colour

Some colours stimulate visual system in a way more pleasing

What is the Ecological Valence Theory of aesthetic response to colour?

Colour preference due to colour-object associations

What is WAVE (used in ecological Valence theory)

Algorithm that shows/predicts how good/bad objects associated with that colour are

What is colour constancy

Perceived colours of objects do not change even if illumination changes

What is sustained attention also called?

Vigilance

What is divided attention?

Where you focus attention on more than 1 things, e.g. multitasking

Difference between covert and overt attention

Covert is trying to obscure where you are attending to


Overt is obviously paying attention to something

How can we study covert spatial attention?

Reaction time experiments (assume attention takes time to move around)

What are endogenous cues

Cues that require understanding (top down process) such as an arrow pointing left requires understanding of what arrows are

What are exogenous cues?

Cues that gain attention involuntarily e.g. flashing box instead of an arrow

What is the name of this experiment?

Spatial cueing

What's the name of this experiment

Visual/feature search

What is the target in this and what is required?

Target is a conjunction


Serial search is required

What is this task?

Response competition flanker task

What is this task?

Singleton Attentional Capture Task

What is change blindness

The idea that we often miss big changes to our visual field that appear to be obvious if aware

In a central fixation task, covert attention to faces has what neural response?

Increases fusiform face area (FFA) response

In a central fixation task, covert attention to houses has what neural response

Increases Parahippocampal place area (PPA) response

What is early selection of attention?

Info selected for future processing based on sensory physical characteristics

What is late selection of attention?

If info is selected later in the processing stream once it's meaning has already been assigned

What is the cocktail party effect?

When you focus on one stream of info and ignore another



NOT the breakthrough effect (hearing name in room full of people)

What is the dichotic listening task?

Ppts wear headphones, dif messages to each ear, subjects attended one ear and ignored the other


Asked to repeat attended message out loud (shadowing)

What does the dichotic listening task show?

Ppts shadow the attended message easily


When asked about unattended message:


Can report physical characteristics (e.g. sex of voice, large pitch changes)


But not much else


Rarely noticed when in a foreign language or reversed speech


No content remembered, even if the same word was presented 35 times

What selection does the dichotic listening task support?

Early

2 early selection theories

Broadbents filter theory


Triesman attenuation model

How does Triesman's attenuation model differ from Broadbent's filter theory?

Triesman modifies Broadbents so that unattended messages attenuated rather than lost completely, dampened down


Still processed to the level of meaning but the signals in the NS that it generates are v much weaker than the attended stream

Problem with early selection from Mossy (1959)

Breakthrough effect (not the cocktail effect) - hearing name in room full of people

Problems with the early selection from Triesman

Bilinguals influenced by unattended stream if it's in 2nd language

Problems with early selection from Gray and Weddeburn

Responses should have been Dear 7 Jane, but was Dear Aunt Jane

What 3 things can late selection of attention explain?

MacKay Dichotic listening task


Response competition interference (flanker task)


Negative priming

What is the flanker task/response competition task and what does it show relating to attention selection

Incongruent distractor in irrelevant location slows RTs

How can late selection models explain negative priming?

Asked to categorise words as object or animal


Responses to word slowed when preceded by semantically related ignored picture


Suggests ignored stimuli is semantically categorised and inhibited

A theory of selective attention other than early/late

Lavie's Load Theory - both late and early are possible


The stage of selection depends on the availability of perceptual capacity (depending on the load of the task stimuli)

How do behavioural measures of distraction give evidence of Lavie's Load theory

Flanker task

What does the gorillas in our midst experiment show as evidence supporting load theory of attention

Inattentional blindness

2 neuroimaging evidence for load theory

High perceptual load reduces visual cortex response to background


High perceptual load reduces amygdala response to fearful faces

What does exogenous mean

Having external cause or origin


(Bottom up)

Bottom up/ top down?

What does endogenous mean

Having internal cause or origin


Top down

Bottom up/top down

Who suggested the biased competition theory?

Desimone and Duncan

Who suggested the biased competition theory?

Desimone and Duncan

What is the biased competition theory?

Top down attentional control mechanisms and bottom up sensory driven mechanisms sensitive to stimulus salience compete for representation

What is local salience

How much something differs from surrounding image attributes along some dimension such as colour, shape, luminance, size etc?

What is this called?

Salient colour singletons

Who studied salient colour singletons?

Theeuwes

How did Theeuwes study salient colour singletons

What did Theeuwes suggest after studying singleton attentional capture task

Bottom up before top down

What is a saliency map?

Picture represented as it's contrasts in terms of intensity, orientation and colour

Who suggested contingent capture

Folk and remington

What is contingent capture?

Where attention can only be captured by stimulus relevant to our goals (even if the relevance may be less obvious)

Evidence for folk and Remington contingent capture

In spatial cueing task


Colour cues capture attention when target defined on colour


Onset cues capture attention when target defined on onset


Not vice versa

What did Bacon and Egeth argue about Theeuwes's colour singleton task

Task is to "spot the odd one out", so singletons colour is relevant to top down goals

How did Bacon and Egeth change Theeuwes' task

Made shape target no longer a singleton, so instead of all other shapes just being a diamond, made them all different shapes

What did Bacon and Egeth find in their alteration to Theeuwes' task

Colour singleton no longer interferes

What was Theeuwes' respond to Bacon and Egeth?

Suggested they reduced the local salience


If more shapes added keeping many of them diamonds and few different, colour still stands out

An alternative suggested than top down or bottom up suggestion of attention capture

Abrupt onset - Only abrupt onset can produce stimulus driven capture

What did Franconeri and Simon's find about attention

Moving or looming stimuli capture attention, but receeding stimuli does not

What does Anderson suggest may be a third determinant of attention?

Value

What are the 4 sub components of cognitive control?

Working memory


Inhibition


Conflict resolution


Proactive/reactive control

What is conflict resolution

Where you prioritize one process over another, inhibiting another

What is conflict resolution

Where you prioritize one process over another, inhibiting another

What is proactive and reactive control

Proactive - set a strategy in advance (e.g. decide to concentrate in lecture)



Reactive - respond to events as they happen (e.g. if someone's phone went off in lecture, would have to use reactive control to stay concentrated to lecture)

According to the load theory, does perceptual load increase or reduce distraction?

Reduce

How did Lavie et al alter the flanker task to test the effects of cognitive load?

Asked ppts to remember digits during each trial



Either low cog load - 1 digit


Or high - 6 digits

What did Lavie et al find about cognitive load during their alteration to the flanker task?

Distractor interference increased under high cognitive load


(Opposite to perceptual load)

Does perceptual load increase or decrease inattentional blindness?

Increase

What was the test for if cognitive load reduces inattentional blindness?

Carmel et al



Suprise memory test for faces

What was the test for if cognitive load reduces inattentional blindness?

Carmel et al



Suprise memory test for faces

What did the test for cognitive load and awareness (inattentional blindness) find by Carmel et al?

Low load only has chance level at remembering faces (blindness)


High load had about 80% accuracy, better on memory test so were remembering faces

Does cognitive load increase or decrease inattentional blindness?

Decrease

Name of test that gives evidence that people with better cognitive control are less distracted

Engle et al Operation Span (OSPAN) task


What happens in the Operation Span (OSPAN) task

Simultaneously perform simple maths and read words, test recall wordsArgued to assess efficiency of prefrontal functioning

What's does the Operation Span (OSPAN) task show?

Individuals with low WM capacity show increased


stroop interference


Response competition interference


Own name break-through in dichotic listening task

In fMRI of spatial cueing, what part of brain responds to the cued location (effect of attention)

Visual cortex

In fMRI, what part if the brain activates at time of cue (the mechanisms orienting attentional)

Frontal parietal

In an fMRI study of the singleton distractor task, what part of the brain negatively predicted behavioural interference?

Frontal activation

In an fMRI study of the singleton distractor task, when there was a colour singleton, what parts of the brain were more activated compared to no colour singleton?

Frontal and parietal

What part of the brain is activated during sustained attention?

Frontal regions

As some frontal regions are used in both attentional control and general task-unrelated thought (mind wandering), what has been suggested to use to differentiate them neuroimaging evidence? And how successful is it?

Individual differences in working memory capacity, poor - conflicting suggestions = high WM associated with more AND less mind wandering

What is the ipsilateral eye

The eye on the same side of the body

What is the contralateral eye

The eye on the opposite side of the body

Do more or less cones increase visual sharpness?

Less


Few cones in fovea where sharpness is best

What are split span experiments

When presented lists to each ear and ppts have to try to report all stimuli from one ear, then the otherWhen asked to switch, performance is poor

What is the stimulus set filter (broadbent)

Filter for only items with common physical characteristics (e.g. all red)

What is a response set filter (broadbent)

Assignment of stimuli to responses is defined with respect to mental category, cannot be defined relative to physical properties (e.g. classifying arithmetic symbols like alpha)

Which of stimulus set and response set are filtering and pigeonholing according to Broadbent

Stimulus set is filtering


Response set is pigeonholing

What is sound?

A local pressure disturbance in a continuous medium that contains frequencies in the range of 20 to 20,000 Hz (the audible range)

The speed at which the sound propagates depends on what?

The type, temperature and pressure of the medium through which it propagates

What's the speed of sound in dry air?

343m/s


Approx 1 meter every 2.9 milliseconds

What are waveforms?

Sound waves represented as the temporal variation of sound pressure at a fixed point in space

What are waveforms?

Sound waves represented as the temporal variation of sound pressure at a fixed point in space

What is a period of a sound wave?

The duration of an oscillation cycle


The time between 2 peaks

What is a period of a sound wave?

The duration of an oscillation cycle


The time between 2 peaks

What's a good analogy of an oscillator?

A kid on a swing

What does the pressure variation of a periodic sound depend on?

An oscillator with a given period and a given amplitude

What is the frequency of a sound?

The number of air pressure oscillation cycles per second

What is the equation of the frequency of a sound

Inverse of the period


F=1/T

What is fundamental frequency of the male voice?

125 Hz

What us the fundamental frequency of the female voice?

200 Hz

What is the amplitude of a sound?

The magnitude of change in sound pressure within the wave


Corresponds to the max amount of pressure at any point in the sound wave

Another name for amplitude

Sound pressure level

What is amplitude measured in

Decibels, a logarithmic perceptual scale


(×10= double the amplitude)

What does a spectrogram enable us to visualise?

The distribution of the energy (amplitude) in 2 dimensions: time (s) and frequency (Hz)

What 2 ways to represent sound like spectrogram

Spectrum


Waveform

Difference between a spectrogram and a spectrum

Spectrum has time dimension removed

What is a spectrogram without the dimension of frequency

Waveform

What is a pure tone?

Single frequency tones with no harmonic content (no over tones


Corresponds to a sine wave

What are complex sounds

Periodic sounds that have energy at more than 1 frequency, composed of more than 1 pure tone

What is the pinna/auricle

External bit of the ear, affects high frequency sounds by interference between the echoes reflected off it's different structures

What connects the pinna to the ear drum?

The meatus (ear canal)

Role of the outer ear

Capture sound signals


Amplify mid frequencies


Vertical direction coding

Role of the middle ear

Protection


Impedance matching (maximize power transfer)

Role of the inner ear

Frequency analysis


Transduction (convert energy)

What does the middle ear cavity contain

3 ossicles (tiny bones): the malleus (hammer), the incus (anvil) and the stapes (stirrup)

What does impedance matching in the middle ear entail?

Enables air vibrations (sound) to be efficiently transformed into fluid vibrations


Turns a large amplitude vibration in air to a small amplitude vibration (of the same energy) in fluid

What is the function of the cochlea?

To transform a mechanical signal into neural responses in the 8th cranial nerve (auditory vestibular nerve)

What are the name of the hairs in the ear?

Stereocilia

In the organ of corti, are the outer or inner hair cells free to move?

Inner

When a sound reached the middle ear the activity of the stapes against the oval window causes pressure changes across what?

The basilar membrane

When the basilar membrane bends, what it generates flow where?

In the endolymph

When the hairs in the inner ear bend towards the tallest stereocilium, does the cell voltage increase or decrease?

Increase

What are outer hair cells responsible for?

The high sensitivity (hear very low thresholds sounds) and sharp tuning (high frequency resolution)

What are efferent fibres?

Brain to ear fibres

What does "outer hair cells exhibit motility" mean?

Act as tiny motors that amplify the mechanical movement of the basilar membrane

How does the sound waves change as it travels down the basilar membrane

Starts with high frequencies (narrow and stiff)



Ends with low frequencies (wide and flaccid)

What is the place theory of frequency analysis

High frequency sounds only excite neurons at the base (position 2)


Low frequency sounds only excite neurons at the apex (position 1)

What is the temporal (or 'phase locking') theory of pitch perception for pure tones?

The brain times the cycles of the waveform (periods)



Only works for low frequencies

What is the coding of intensity

The louder a sound is, the more frequently the auditory nerve fires



Dif nerves have different thresholds (most low, few high and won't saturate until sounds are high)

What are the 4 parts of the vocal apparatus

The lungs


The trachea


The larynx


The supralaryngeal vocal tract

What are the 3 parts in the supralaryngeal vocal tract

The pharynx


The mouth


The nasal cavity

What are the two functional components in voice production

The source and the filter

What is the source in voice production

The larynx

What is the filter in voice production

The vocal tract

What is the filter in voice production

The vocal tract

What is the filter in voice production

The vocal tract

What creates the pitch in voices

Rate of vibration of vocal folds affects the fundamental frequency, which affects the pitch

What is phonation?

Vibration of the vocal folds

What is another name for sound waves generated by cyclic opening and closing of the glottis

Glottal wave

How many times the vocal fold open and closes per second gives what?

The fundamental frequency (F0)

The variation of F0 with time determines the fundamental frequency contour. In speech it affects what?

The intonation

Does pitch increase or decrease with longer and heavier vocal folds?

Decrease

How much bigger is the larynx in males

40%

What are the vocal tract resonances?

The formants

Formants are on average what % lower in adult males than females

20%

What is articulation

Change in vocal tract shape

What changes formant frequency patterns?

Modulation of the cross sectional area of the oropharynx

What's the difference between vowels and consonants?

Vowel has open configuration of the vocal tract


Consonant has a constriction or closure at one or more points along the vocal tract

What number formants are mainly involved in vowel perception and classification?

F1 and F2

What number formants are mainly involved in vowel perception and classification?

F1 and F2

What 2 things categorise consonants?

Place and manner of articulation

What are fricative consonants?

Where the vocal tract partially closes

What are stop consonants

Where the vocal tract completely closes, then suddenly opens again

What is coarticulation

The articulation of 2 or more speech sounds together, so that 1 influences the other

Advantages of coarticulation?

Easier to transmit info at a faster rate

Disadvantages of coarticulation

No constant acoustic targets in speech


The same consonant can be represented as dif sounds in dif contexts


The same sound can be heard as different consonants in different contexts

What is categorical perception?

Perception of different sensory phenomena as being qualitatively or categorically different

What consonants have labial articulation

B p

What consonants have alveolar articulation

D t

What consonants have velar articulation

G K

What consonants have velar articulation

G K

What is voice onset time

The silence duration before the consonant is heard

3 definitions of categorical perception in speech

Sharp phoneme boundary


Discrimination peak at phoneme boundary


Discrimination predicted from identification

What is a discrimination experiment in speech?

Play 2 stimuli that vary by a very small amount of steepness in slope of a formant next to each, asked if it's the same letter or a different letter

In the discrimination experiment, does everyone have the same categories for each phoneme?

No, can vary a little bit e.g. different language have dif cut offs

What is categorical perception of a phoneme a result of?

Human mapping auditory signal to articulatory perception

Is speech categorical perception unique to humans and why

No, chinchillas and quals show the same voice onset time boundaries for /da/ and /ta/ continuum



Macaques show discrimination peaks at human voice onset time and place of articulation boundaries

2 evidence

Is categorical perception of speech innate or acquired

Children born with ability to make many speech distinctions, but lose ability to make distinctions the language doesn't use


CP is ACQUIRED by reduction of perceptual sensitivity within native phoneme boundaries (so learn distinctions of 1 language)


Sensitivity can be re-acquired with intensive training


What is the difference between a phonetic sounds and phonemic sound

Phonetic sound (phone) = a particular sound used by any language e.g. the sound of l or r


Phonemic sound (phoneme) = a sound used in contrast to another in a particular language e.g. the category /r/ as distinct from /l/

Whats an example of a minimal pair?

/r/ and /l/ in English

What do minimal pairs define?

Phonemes in a particular language

What is the bar, far effect called

McGurk effect

What is an interdisciplinary approach?

Applying methods and language from more than one discipline (branch of knowledge)

What approach allows us to study language?

Interdisciplinary

3 reasons Chomsky suggests language could not have evolved through natural selection

No genetic variation


Confers no selective advantage


Would require more evolutionary time and genomic space than is available

What type of humans had the largest brain size?

Neanderthal

What % of our body weight is our brain?

2%

What % of our energy does our brain take up?

20%

What is the Machiavellian intelligence or social brain hypothesis

Brain increases in size due to selective pressures favouring individuals capable of dealing with increasingly complex social relationships

Why brain is so large in modern humans


Enable language/social cognition:

Problem with the Machiavellian intelligence or social brain hypothesis

What came first, large brain or large social group - chicken and egg situ

Brain increases in size due to selective pressures favouring individuals capable of dealing with increasingly complex social relationships

What is the social contract hypothesis

Large brain evolved to facilitate symbolism, necessary to enable the coordination of complex social contracts (e.g. marriage) which is necessary in hunting

Why human brains so big


Enable language/social cognition:

What is the scheherazade effect hypotheses

Verbal skills as an indicator of gene quality. Selected for by sexual selection.

Why human brains so big


Enable language/social cognition:

Is the size of prefrontal lobe the reason we can speak?

No, recent MRI suggest frontal lobe not relatively bigger than apes

How do mirror neurons link to language

Capacity to imitate


Neurons fire in the homologue of the Brocas area/F5 of the premotor cortex


Enable mapping of perception onto execution


Natural starting point for evolution of imitation abilities

In the Kuypers/Jurgens hypothesis to speech, what do only humans have?

Only humans have direct connections to the laryngeal motor neurons that control the muscles of the larynx

What is thoracic breathing

Using muscles of the thorax (intercostal muscles) and the abdomen to keep constant control over breathing

What is the size exaggeration hypothesis

Sexual selection, sound bigger

The descent of the larynx

What 2 vowels couldnt Neanderthal produce?

i and a

Is right handedness present in other animals or just human

Unique to humans

Most vertebrates show a dominance for vocal production and perception in which hemisphere?

Left

What did Corballis suggest to be the reason we are right handed?

Long lasting association between gestures and localisation



Discovery of mirror neurons for gesturijg in homologous equivalent to Brocas area in monkeys support idea of imitation abilities essential to language may have involved gesturing before vocalising

What is the ding-dong theory

Imitation/ritualisation of nature sounds

To what the first spoken words derive from

What is the pooh-pooh theory?

Imitation/ritualisation of internal states (fear-aggression)

To what the first spoken words derive from

What is the bow-wow theory

Imitation/ritualisation of other species calls (e.g. preys, hunt deer bleat)

To what the first spoken words derive from

What is a protolanguage

Ability to form representations and combine them into short sequences

What is the classic model to how we categorise the world

Features (set defining features)

Conceptual hierarchies lead to ... of representation

Economy

What is the probabilistic view of concepts

Prototype theory


No defining features, concepts represented by prototypes with characteristic features

What is the probabilistic view of concepts

Prototype theory


No defining features, concepts represented by prototypes with characteristic features

What is the theory theory of concepts

Concepts are knowledge-based, based on people's goals, assumptions and understandings


Not a checklist of unrelated features

What is the theory theory of concepts

Concepts are knowledge-based, based on people's goals, assumptions and understandings


Not a checklist of unrelated features

Does the prototypicality view or theory theory view of concepts allow for conceptual combination?

Theory theory

Baby oil


Dog fish

Does the prototypicality view or theory theory view of concepts allow for conceptual combination?

Theory theory

Baby oil


Dog fish

Evidence we can think without language (2)

Prelingual babies show evidence of conceptual categories e.g. phoneme discrimination



Speech and language impairments don't necessarily destroy thought and reason

What did Ferdinand de Sausurre suggest about concepts

There is a signifier (the symbol or image) and a signified (the meaning conveyed) and the connection if fundamentally arbitrary

What does the Bouba-Kiki effect show?

Sound symbolism: the idea that the sound of a word corresponds in some kind of way to meaning

What were the patterns in sound meaning connections across thousands of languages that Blasi et al. Found?

Little - i


Full - p or b

Which brand or ketchup was suggested to be thicker in Klinks study?

Nodax

Nidax or Nodax

What is this?

A syntactic tree

What are bound morphemes

Parts of words that can't stand on their own e.g. -s in dogs

Evidence words are broken into parts

The wug test

What are the 2 parts of the mental lexicon?

Full listing (all words have to be looked up, all of them stored)



Full parsing (all words must be decomposed into elements, computation)

According to Pinker, idiosyncratic words are stored or computed?

Stored

E.g. find -> found

According to Pinker, fully transparent words are stored or computed?

Computed

E.g. walk -> walked

What is it called when a word is used often (e.g. a compound word like homework) so that it's stored as a word

Lexicalisation

What does constituent mean?

Being a part of a whole

How to study storage vs computation in words

Split up compound words into consistuents e.g. homework, home and work



Measure response time to word and see if there is a change between whole-compound frequency and constituent frequency

What did Andrews, Miller and Rayers eye tracking with compound words show?

Evidence of both lexicalisation and decomposition - dual route

What did Marantz suggest on morphemes?

All words are stored in pieces

What did Kuperman et al suggest for compound word storage/computation

Probabilistic multiple route model


Interaction between whole-compound and constituent frequencies- integration of multiple strategies

What is a maximally expressive language?

Having a different word for every unique event, thing, person, action etc

What is the principle or parsimony

Getting the most use out of the smaller number of units

What is language economy?

Getting a balance between expressiveness and efficiency

Issue with efficiency in language

Ambiguity

What are garden path sentences?

The "default" reading of the ambiguous section doesn't turn out to be the right reading by the end of the sentence


E.g. queen mother tried to help abuse girl

Definition of language

A system of symbols and rules that enable us to communicate

What is embodied cognition?

The experience of living, sensing and perceiving the world fundamentally informs our conception if it



Not a brain in a jar

Lakoff and Johnson suggested our embodied concepts underlie thought and language through what?

Conceptual Metaphors

What concepts have vertical orientations?

Self esteem


Power


Mortality


Happiness


Divinity

Good is up

What did Pecher et al find on conceptual location

Conceptual location of the word in space actually slowed them down if ppts expected where the word would be based on the embodied concept of things being either above or below you

'Is it found in the sky'


'Is it found in the ocean'

What did Pulvermüller find on embodied cognition?

Applied TMS (stimulation) to motor region for arm or leg



Faster lexical decisions for leg related words if leg region stimulated (same for arms)



Language not modular or abstract bit integrated part of experience

What did Zwaan and Pecher find our sensory info being simulated?

Ppts read a sentence implying a particular colour, (stopped in woods to pick leaf from tree)


Then shown picture of leaf either matching context or mismatching, asked if object appeared in sentence


Ppts were slower if didn't match

Leaf

What did Connell and Lynott (2009) find on sensory info being simulated?

Ppts read a sentence implying a particular colour for the target, bear in woods, bear in north pole


Stroop kind of test, say colour of the word (bear)


Woods in brown is quickest (north pole in brown or white v similar)


Colour we expect something to be is automatically evoked by language

Bear



Method and findings n all

What does linguistic relativity mean?

Features of language influence/bias patterns of thought

What is linguistic determinism?

Features of a language determine/constrain patterns of thought

From what theory does linguistic relativity and linguistic determinism come from?

Sapir-Whorf hypothesis

Hypothesis

Issue with linguistic deterninism

If your language doesnt have a word for something, doesn't mean you cannot understand it

What did Whorf suggest?

Hopi has no words, grammatical forms, construction or expression that refer to time so has no general notion or intuition of time as a smooth flowing continuum of it

Counterargument of Whorf

Malotki created a 600 page discourse on grammar of time in Hopi showing Whorf is wrong

What is the circulatory in Whorf?

People who speak dif languages think differently



How do we know they think differently?



Because their languages are different

2 studies on linguistic relativity

Colour categories


Who dunnit? (Break vase)

No names needed

What is the tribe whose colour categories were examined?

Berinmo tribe of New Guinea

Who studied the Berinmo tribe

Roberson et al

How many colours do the Berinmo tribe have terms for?

5

How many colour terms to England have

11

What did the who dunnit? task show

For accidents, English speakers use more agentive descriptions (she broke) than Spanish and remember the correct actor more frequently than Spanish

Language

What is it called when both languages are active even when only 1 being used

Joint activation

What is it called when both languages are active even when only 1 being used

Joint activation

What does parsimonious in relation to language

Language system has a lot of info to manage and needs to chose which things to pay attention to/which to simplify/go into detail in order to communicate

What are cognates

A words than means the same thing in two different languages


E.g. piano is piano in english and spanish

What is an interlingual homograph

"A false friends" A word that has the same forms but means different things in dif languages


E.g. pie is foot in spanish

Test on dutch and english words for joint activation

Bilinguals lexical decisions - (is this a word Y or N)


Faster for cognates


Slower for interlingual homographs when the pronounciation was different


Monolinguists no effect

What are interlingual homophones

Words that sound similar and share spelling but different meanings

What did the study on homophones and joint activation show

Influence of the second language also extends to auditory domain (not only visual processing)

What is the ERP evidence for simultaneous language use

When asked about English words, chinese-english bilinguals had no behavioural differences but changes in N400 ERP signal indexing semantic priming


So chinese word accessed as well (despite only english word being asked about)

What did the study on sign language and join activation do?

ASL/English bilinguals asked to just whether 2 written english words were similar, some of these word pairs had ASL signs with similar forms

What did the study on sign language and joint activation show

Judgements were faster when words related and signs were similar


Judgements were slower when words unrelated and signs were similar

What is the sign language and joint activation study evidence of

That joint activation also occurs crossmodally, visual/gestural vs auditory/spoken, doesnt matter how people are communicating

What is the term for intentionally switching between languages

Code switching

What asked to do code switching, does your first or second language have more of an effect on you first/second language

Second language has more of an effect on the first

Are monolinguals or bilinguals better at verbal fluency tasks (name a word starting with a particular letter)

Mono

What is the effect shown on bilinguals in a verbal fluency task

When bilinguals asked to name a word starting with a particular letter from their 2nd Lang first, they were slower to do same task after but in their 1st lang

What does the verbal fluency task show in code switching

Global (whole-language) vs local (lexical-item) inhibition


Different levels at play

What 3 cog domains or tasks may bilinguals be better at

Executive functuon/inhibitory control


ToM


Memory

What 2 things are bilingual children better at

Finding embedded figures


Identifying correct grammar in odd sentences

What 2 things are bilingual children better at

Finding embedded figures


Identifying correct grammar in odd sentences

What 2 things are bilingual children better at

Finding embedded figures


Identifying correct grammar in odd sentences

What 2 tasks are adults better at

Stroop task


Simon task

How can the enhanced inhibitory control be disadvantageous

Trilingual ppts asking to name numbers in patter Eng/Ger/Eng, slower vs Eng/Ger/Fre


Require gloabal inhibition of Eng


Negative priming slow response

Evidence of bilingual performance on ToM

Bilingual children better on both ToM tasks - standard false belief task and modified to mimic language switch scenario

What is the evidence on memory for bilinguals

Mixed

How long does it take for bilingual and monolingual children to gain a vocab or 50 words

About 1.5 years

What is receptive vocabulary

Words you understand

Whats the dif in receptive vocabulary between monolingual and bilingual children

Monolingual know more


(Only home words, not words from school)

Difference in lexical retrieval in bilinguals and monolinguals

Bilinguals slower and experience more tip of the tongue states

Are BSL and ASL mutually intelligible to british and amercian English?

No

How is phonology shown in sign language (4 ways)

The form or configuration taken on by the hand


The orientation in the hand takes on while making the sign


The location the sign is performed


The movement the hand describes

What are minimal pairs in spoken language

2 words that differ by only 1 sound e.g. pat bat

Does ASL have minimal pairs?

Yes

How do babies exposed to sign language act?

Babble as they would with speech exposure babies do with sound

What is obligatory for grammatical communications in sign?

Particular facial expressions

What does using facial expressions in sign lead to?

Enhanced facial discrimination ability

Are sign languages gestures or pantomime

No, but contain iconic elements e.g. the sign to forget

Whats the differences between associators and projectors in colour synaesthetes

Associators: in the minds eye


Projectors: in the visual field, have experience of perceiving colours

Understanding if the colours perceived in colour synaesthetes are randoj or are dimensions of colour mapped onto language is interesting for what 2 things

Both individual letters (graheme processing)


Whole words (lexical processing)

Are there trends in colour letter associations

Yes for synaesthetes and non-synaesthetes

Evidence for colours being associated to letters being learnt

The apple hypothesis, some influence of the language you are exposed to as a child and what associations you make as an adult

What did a cross-linguistic study find on colour synaesthesia

First letter in alphabet is red

What is prosody

Stress, length, intonation

If the first consonant is R, what colour is the word seen as

Purple

If the first vowel in A what colour will the word be

Red

How can you change the colour of a word with 2 syllables with dif vowels

Stress the dif syllable

How can synaesthesia be used to study lexicalisation

Compound words


1 colour = lexicalised


2 colours = consistuents, decomposed


Depends on freq = freq-based lexicalisation

What was found in compound words for synaesthetes?

Synaesthetes reported more 1 colour compounds in high frequency words

Who created the Multistore model of memory

Atkinson and shiffrin, 1971

What store holds visual info

Iconic

What store holds auditory info

Echoic

What store holds touch info

Haptic

Evidence for capacity of STM

Miller's 7+/-2

Evidence for MMM

Patient KF suffered brain damage due to road accident


Digit span of 2 in STM, but intact LTM and learning intact


Support for separate stores

Evidence against MMM

KF could retrieve and encode LTM,


Contradicts idea that STS used for processing memory and storage

Who created the Working Memory Model

Baddeley and Hitch, 1974

4 components of the WMM

Central executive


Visuo-spatial sketchpad


Phonological loop


Episodic buffer (added later Baddeley, 2000)

What are the 2 components in the phonological loop

Phonological store


Articulatory rehearsal process

Difference between phonological store and articulatory rehearsal process

Store is inner ear, speech maintained through rehearsal


Articulatory rehearsal process is inner voice, converts written words to auditory, maintains auditory info through rehearsal

4 key evidence for phonological loop

Phonological similarity effect


Irrelevant speech effect


Word length effect


Articulatory suppression

What is the phonological similarity effect

Baddeley 1966


Memory for phonologicallg similar consonants/words inferior to phonologically dissimilar consonants or words


Same for auditory and visual presentation of stimuli - showing storage in phonological way

What is the irrelevant speech effect

Memory for visually presented consonants or digits is impaired by the simultaneous presentation of speech


Shows both using same system: visual converted to phonological code

What is the word length effect

Baddeley, Thomson, Buchanan


Memory for short (1 syllable words) better than memort for long (5 syllable words)


Showing limited capacity ~ 2 seconds


Also linked to speech rate, the quicker we can vocalise items, the more items we can rehearse within 2 secs

What is articulatory suppression

Baddeley, Thomson and Buchanan


Memory is impaired when ppts required to simultaneously repeat a word out loud


Also phonological similarity effect for visually presented info also disappears when ppts simultaneously repeat a word out loud

Evidence for dual tasks

Digital span impaired by verbal but not a version secondary task


Visual span impaired by a visual, but not a verbal secondary task

3 evidence for a visuo-spatial sketchpad

Corsi-block tapping task


Phillips matrix task


Brain damage patients

What is the Corsi block tapping task

Experimenter taps out a sequence on 9 randomly arranged blocks, ppt then copies

What was found in the Corsi block tapping task

Spatial memory declines with the sequence size and can be used to measure ppts spatial memory span


Shows limited capacity for spatial memory

What is the Phillips Matrix task

Ppts recall locations of a pattern of coloured cells in a grid

What dies the Phillips Matrix task show

Visual memory declines with the number of cells that a ppt has to remember and can be used to measure visual memory span


Shows limited capacity for visual memory

What do brain damage patients show for the visuospatial sketchpad

Separate working systems as some patients impaired at corsi task (impaired spatial), with intact visual span (philips matrix), others vice versa

4 jobs of the central executive

Focus attention


Divide attention among tasks


Switch attention from 1 task to another


Interface with LTM

Evidence for central executive

Numerous observations that dual tasks (even for noncompeting tasks) show impaired performace compaired to single tasks

4 issues with WM (before episodic buffer)

Articulatory suppression reduces, but doesn't eliminate digit span for visual stimuli


Some LTM amnesiacs show immediate recall for complex info, beyond limited capacity of existing storage units


It is unclear how info from different modalities and from LTM is bound and stored


It is unclear how rehearsal operates outside of articulatory rehearsal

Role of episodic buffer

Limited capacity for "chunks" or episodes


Integrates info from different modalities and LTM

What are the next steps for WM (5)

Distinguish boundaries of dif storage systems within working memory and from executive functions


To distinguish boundaries of episodic buffer from LT episodic memory


To better understand processes responsible for chunking


To distinguish binding within episodic buffer from perceptual binding


To better understand the role of the episodic buffer in consciousness

Which of declarative or non declarative ltm is implicit

Non declarative

4 types of non declarative LTM

Procedural


Priming


Associative learning


Non-associative learning (reflex)

Where in the brain is episodic and semantic ltm associated with

Medial and lateral temporal lobe

Where in the brain is procedural ltm associated to

Striatum

Where in the brain is priming associated to

Cortex

Where in the brain is associative learning associated to

Amygdala


Cerebellum

Evidence of dissociation between semantic and episodic memory

MTL patients damage in medial temporal lobes have impaired episodic, intact semantic


SD (semantic dementia) patients damage in neocortex, intact episodic impaired semantic

What is the 2 ways episodic and semantic memory are interdependent

Semantic knowledge can facilitate episodic memory performance


Impaired episodic impacts acquisition of new semantic memories

How can semantic knowledge facilitate episodic memory performance

Ppts better able to identify previously presented food prices was better if prices consistent with semantic knowledge


MTL patients with intact semantic performed same as ^, if impaired, showed no benefit of consistent semantic prices

Theories of the interdepence of episodic and semantic memory

Episodic is embedded in semantic (tulving) [H/ episodic info influences semantic memory]



Semantic mems abstracted from episodic when contextual info is lost (differs across repititions



Episodic are semantic mems binded to contextual info



Constructive episodic simulation hypothesis: episodic mems can be combined constructively and flexible to imagine future scenarios, drawing on semantic knowledge

What is the remember-know paradigm

Suggests things we remember is episodic whereas know is semantic memory

Whats a study on the remember-to-know shift

Studente were given remember know task based on selection of exam qs


Remember responses declines over 3 years but know (semantic) responses remained constant

2 models on semantic memory

Hierarchical/semantic network model


Spreading activation model

3 types of priming

Repitition priming (prior exposure to stimuli will facilitate retrieval of it)


Perceptual priming (priming in tasks requiring the process of surface or perceptual info)


Conceptual priming (priming in tasks requiring the process of senantic info

5 perceptual implicit memory tasks that priming helps

Word fragment completion


Word-stem completion (re_ _ _)


Anagram solution


Word identification (did word appear)


Lexical decision tasks (word or non word)

3 conceptual implicit memory tasks priming helps with

Word association (asked to give a word associated to given word)


Category instance generation (given category and asked to give e.g.)


General knowledge questions

Which priming task do amnesiacs have impaired performance on

Word association

What is memory consolidation

Strengthening info in LTM

Retrieval is enhanced by what level of processing

Deeper (e.g. meaningful) over shallow (e.g. physical characteristics)

Recall in enhanced by what 6 deeper processes

Embesding words in complex sentences


Creating visual mental imagery


Self-reference (does this word desribe you?)


Generating info - generate words related to given word


Organisation - into categories


The testing effect: learn info by testing yourself

3 issues with the levels of processing theory

Difficult to define depth of processing: processing is deep when memory performance is better (circular reasoning)


Descriptive rather than explanatory


Doesn't take into account relevance of the processing method to the memory test

Godden and baddeleys underwater study is an example of what

Encoding specificity princle

Another example of encoding specificity principle

Grant et al, learning silent vs noisy, test silent vs noisy

One study on state dependent encoding

Fich and Metchalfe


Encoding/test when happy/sad

5 influences on encoding

Encoding specificity principle


State-dependent encoding


Transfer appropriate processing


Spacing effect


Sleep

What is transfer appropriate processing

Retrieval is enhanced if memory test is consistent with the method of encoding e.g. semantic/rhyming encoding, standard recognition test/rhyming recognition test

What is the spacing effect on encoding

Spacing encoding sessions over time enhances retrieval

How does sleep affect encoding

Sleep shortly after encoding enhance retrieval

2 theories of amnesia

Encoding deficit


Retrieval deficit

Issue with the encoding deficit

Explains retrograde amnesia as an ongoing encoding deficit H/ can be sudden onset

Issue with retreival deficit

Inability to retrieve memories not supported by differing levels of retrograde and antrograde amnesia, sometimes isolated cases of each

What are the 2 stages to the standard theory of consolidation

1. Initial memory trace is created within a few secs


2. Over several years the memory trace is strengthened by further consolidation involving the hippocampus

How can the standard theory of consolidation explain amnesia

Retrograde amnesia of 2-3yrs in some patients with predominantly anterograde amnesia (e.g. HM) is due to impairment to consolidation by hippocampus

What is another theory of consolidation

Multiple trace theory

What is the multiple trace theory

Over time, episodic memories are converted to semantic memories via hippocampus


Episodic mem retrieval dependent on hippocampus


Semantic is not

Which theory for memory consolidation is the best

Evidence is inconclusive

What is the temporal gradient in amnesia

Retrograde amnesia often presents with better memory for older mems than more recent ones

What 4 things are preserved in amnesiacs

Procedural


Repetition priming


Know


Semantic

When is there a reminiscence bump?

Adolescence and young adulthood

What are 3 hypothesis to the reminiscence bump

Self-image hypothesis


Cognitive hypothesis


Cultural life script hypothesis

Just names

What is the self image hypothesis to the reminiscence bump

Memories linked to events important to development of self image

What is the cognitive hypothesis to the reminiscence bump

Memories enhanced for period of many life changes followed by stable period

What is the cultural life script hypothesis

Enhanced memories for events consistent with culturally expected events

What are flashbulb memories?

Memories for when we first hear about a highly emotional event e.g. 9/11


Detailed and vivid


Persistent over time

2 evidence on the accuracy on flashbulb memories

Neisser and Harsch: peoples memories after 1 day and 2.5 to 3 years later of Challenger disaster showed discrepancies



Talarico and Rubin: decrease in accurate memories and increase in inaccurate memories to both everyday and 9/11 memories same rate, H/ people believe more accurate in 9/11 than everyday


2 explanations for flashbulb memories

Emotional info enhances the subjective perception of remembering


Narrative rehearsal hypothesis: emotional info undergoes repeated rehearsal

Evidence for emotional info enhancing subjective perception of remembering

People remember negative pictures over neutral pictures H/ less likely to remember frame colour if negative

Evidence for narrative rehearsal hypothesis

Over 40% ppts reported seeing non-existent video footage of Princess Diana's fatal car crash

What does the war of the ghosts show

That memory is constructive

Other evidence for memory being constructive

Source monitoring errors/misattributions e.g. gendered statements, becoming famous overnight: seeing infamous names led to sense of familiarity

What are proactive interefence

Memories before an event interfering with retrieval of memories of that events


Acts forwards in time

What is retroactive interefence

New info acquired after an event interfere with retrieval of memories of that event


Act back in time


Misleading qs

Misinformation effect evidence

Loftus and Palmer


Smashed = 41mph


Hit = 34mph

What is evidence of source monitoring

Ppts watched a vid of either male or female teacher reading to students, then watched of vid of female teacher being robbed


Ppts who viewed the male teacher video often selected him as the robber from a selection of photos

What is the link between quicker intuitive decisions and satisfaction with decisions

Choosing poster


Deliberated decisions reported higher satisfaction immediately after


Quick decisions reported higher satisfaction 1 month later

What did Gladwell suggest about decisions on relationships

People could decide if relationships would last based on short clips

What did Gladwell find on doctors and decisions

Could decide if docs would be sued for malpractice


Info about training not useful

What did Gladwell find on doctors and decisions

Could decide if docs would be sued for malpractice


Info about training not useful

What did William james make distinctions between

Associative thought


Reasoning

What is system 1 thinking

Fast, automatic, little or no effort, no voluntary control

Which thinking is the feeling if agency and might be identified with the self

2

Which thinking is when we are awake

System 1

What does the Wasons selection task show

People quick to decide/driven by what told about the task - evidence of system 1


Cognitive neuropsychology shows dif brain regions involved

7 unconscious influences on system 1

Unscramble elderly words leads to walking slower


Walking slowly primes words about elderly


Pencil in mouth vs teeth increase amusement


Vote for increased funding at achool if voting station in school


Subtle money primes make people more individualistic and selfish


Lying on phone leads to preference of mouthwash over soap, vice versa for email


Pics of faces vs flowers sig ^d money out into honest box

What is the mere exposure effect (Zajonc)

Preference for things just because they are familiar

Does a good mood increase or decrease taking things at face value

Increase, depressed think more analytically

What is the halo effect and which system does it relate to

The tendency for an impression created in 1 area to influence opinion in a dif area e.g. height - leader


System 1

What is aschs primacy effect

Things at beginning of a list recalled more


Alan intelligent... envious


Ben envious... intelligent

What does WYSIATI stand for

What you see is all there is

Who suggested WYSIATI

Kahneman

What does WYSIATI explain

Overconfidence


Framing


Base-rate neglect

Issue with system 2

Lazy

What is ego depletion

Doing a difficult task has consequences afterwards

Evidence of system 2 being lazy

Danzinger et al., parole judges default to "easy" option of denying parole before food breaks


Maths qs, chose easy most obvious (but wrong) answer when in a good mood or not thinking hard

How do system 1 and 2 interact

Substitution

What is the term for our likes and dislikes determining our beliefs

The Affect Heuristic

Evidence for the role of the affect heuristic

Impaired affect associated with impaired decision making

What is magical thinking (e.g.)

Where system 2 doesn't question system 1 e.g. contagion - would you wear hitlers sweater?

What are the 2 selves

The experienced self


The remembering self

What are the 2 meanings of utility

Experiences utility (e.g. hedonic vs hedonistic plessure/pain, Bentham and Utilitarianism)


Decision utility (wants desires based on memory and projection)

What 2 things were retrospective judgements based on for colonoscopies and 1 thing they neglected

Based on worst moment and end moment


Duration neglect

What did the cold pressor experiment show on judgement

If the water slightly warmer at the end for an extra 30 seconds, dont remember it as bad as without - chose to repeat with extra 30 seconds

What is the James Dean effect

Ratings of total happiness of life were independent of total duration but strongly affected by the last 5 worse years


Neglect of duration, averaging

Large scale study on the experiencing self

Measures of Experienced Well-Being (EWB)

Large scale study on remembering

Measures of (usually retrospective) evaluation of a whole life or part of it


E.g. the Cantril Self-Anchoring Striving Scale

Difference of EWB and life evaluation of education

Increases life evaluation but may decrease EWB because of stress

What 3 thing primarily affect EWB

Ill health


Religion


Having kids

What increases life eval

Wealth

What are the 3 Kahneman and Tversky heuristics

Anchoring and Adjustment


Availability


Representativeness

What is the law of small numbers

People take small samples to provice accurate estimates just as large samples do, but they yield extreme results nore often than large samples do

What is the misperceptions of randomness

It does not imply uniformity

What is the anchoring and adjustment heuristic

People use a specific target number or value as a starting point, known as an achnor, and subsequently adjusts that info

What is the anchoring and adjustment heuristic

People use a specific target number or value as a starting point, known as an achnor, and subsequently adjusts that info

Whats an example of the anchoring or adjustment heuristic

Wheel of fortune rigged to stop at 10 or 65


Ppts asked whether the proportion of nations in the UN that are African is smaller or bigger than that number, then asked to estimate


10 = 25%


65 = 45%


Correct = 30

If adjustment is a deliberate process, what system is this

2

What is a real world example of the anchoring and adjustment heuristic

Estate agent valuing real properties with high and low anchors showed anchoring, showed anchoring effect (distance between final estimates) of 40%

What is the availability heuristic

Mental shortcut that relies on immediate examples that come to a given person's mind when evaluating a specific topic, concept, method or decision


Based on retrieval of memory


Ease of recall

What is the availability heuristic an example of

Substitution of questions


(How common translates to how easily can i think of examples)

What is the famous name demonstration of the availability heuristic

In a balanced list of names, ppts believed there were more women (or men) if the women (or men) are more famous

2 examples of domestics in the availability heuristic

People tend to overestimate their relative contribution to household chores


People also overestimate their contribution to causing arguments

What is a wrinkle on the availability heuristic lol

If ppts asked to list 6 or 12 instances of recent situations, those that are asked for more tend to find it harder and end up believing the opposite (that the situ happens less than in 6 instance condition)

What is the representativeness heuristic

Make a judgement of whether something is of a certain kind by how well it fits with your prototype or stereotype of what they are like


Based on judgements of similarity

What experiment is linked to the representativeness

Tom W experiments


Computer science or humanities


Much more likely to be humanities, base rate


Chose to ignore what they do know - base rate


Base judgement on how well descriptions of Tom W fit typical grad student for computer science (even tho told info is crap) over how likely he would be based on base rates

What are the 2 problems with using representativeness

Ignoring base rates


Using poor (or even useless) info

What is the conjunction fallacy

The Linda problem


Linda is a bank teller or bank teller and active in the feminist movement

Less is more example

2 dinner sets, 1 with same as other and a few more good items and a few broken items


People put off by broken things

Study in base rates vs casual stories

The blue green cab stories

What is hindsight bias

Knew-it-all-along effect


Inclination to see event as having been predictable, despite there having been little or no objective bias for predicting it

Whats the illusion of understanding

We believe our narrarives explain what happened and that we understand the world

What is outcome bias

Events judged by their actual outcome, not whether the decisions were good ones when they were made

What is the illusion of validity

Overestimating ability to interpret and predict accurately the outcome when analysing data (specifically when data shows pattern)


E.g. assessing the potential of recruits in Army - confident but judgements little better than useless

What is the illusion of skill

Some experts are not experts

2 examples of experts not being experts

Stock trades by brokers


Political pundits (ppl offering opinion to mass media)

Are clinical or statistical predictions better (Meehl)

Statistical does better in ~60% of cases

2 Dawes-type examples of predictions using multiple regression

Marital stability (love making and quarrels)


The Apgar test for worryingly poor breathing in newborns (rate 5 criteria and add up)

What are the 2 crucial conditions that allow for intuition to work well/better

Regular environments (make judgements and get feedback)


Practice in those environments

3 negative outcomes of optimistic bias

Planning fallacy (underestimate time needed)


Belief in a Benign World (kind)


Belief in the Ability to Forecast Future

3 positive outcomes of optimistic bias

Tend to do better in life


Be more influential


Be healthier

What theory says weight the attributes according to their importance and combine the values of each object on each attribute to get an overall utility

Multi attribute utility theory

What does homo economicus mean

Attempting to maximise utility using rational assessments

What is marginal utility

The satisfaction


Value of a fixed sum of money decreases as the amount it is added to increases

How is the prospect theory a tweak of the utility theory

Takes the normative theory (prescriptive based on assumptions) and changes it into a descriptive theory

What does the utility theory lack

Reference point of the status quo


(Jack n Jill have £5M, yesterday Jack had 1, Jill had 9, whos happier)

What is the crucial assumption of prospect theory

Outcomes should be defined in terms of gains and losses, not absolute utility levels

What does golf putts show for loss aversion

People doing a bit better (3.6%) if trying to avoid a loss (par) rather than seen as a gain (birdie)

Which framing is better in gambling

Broad, wider view - long term benefit over loss

For gains/losses, when are people risk seeking/averse where the uncertain gains/losses are high probability

Risk averse for gains


Risk seeking for losses

E.g. £900 for sure or 90% chance of £100

For gains/losses, when are people risk seeking/averse where the uncertain gains/losses are low probability

Risk seeking for gains


Risk averse for losses

E.g. £9 for sure or 0.9% chance of £1000

What is the name of this

The fourfold pattern

5 other deviations from the normative theory

The endowment effect


Probabilities


Allais paradox


Mental accounting


Framing

5 other deviations from the normative theory

The endowment effect


Probabilities


Allais paradox


Mental accounting


Framing

What is the endowment effect

Effect of ownership - people demand much more to give up object than they would be willing to pay to require it

What does the endowment effect contradict

Coase theorem - ppls willingness to pay rqual to willingness to accept

Do you see the endowment effect in market transitions

No, no special attachment

In study of mug selling/bidding what was the difference in selling price

Selling price approx 2x bid price

Are decision weights equal to probabilities according to Prospect theory?

No, losses and gains transfer probabilities into decision weights

What are the distortions of probabilities?

Sometimes v small probabilities are ignored


If not, they are overweighted

Is the prospect theory faulted by the allais paradox?

No

Is the mental accounting study, are people more likely to buy another ticket if they lost 10$ or the 10$ ticket

10$

What is mental accounting

People allocate resources into different accounts

What is the sunk cost fallacy

Your decisions are tainted by the emotional investments you accumulate

What is the framing effect

Decide on options based on if the options are presented with positive or negative semantics


E.g. accept gamble with a 10% chance to win £95, 90% to lose £5 or pay £5 for lottery ticket...

What problem is an example of the framing effect

The asian flu problem

What does the asian flu problem show

People prefer sure for good outcomes, but chose risky for bad outcomes as predicted by prospect theory

What did Gigerenzer argue about how argue is presented to overcome bad judgements

People are better at dealing with absolute frequency info rather than probabilities or proportions (misleading)

Where particular does Gigerenzer suggest probabilities and frequencies are misleading

Diagnosis

What are the 4 strands of work on the psychology of thinking

Judgement and decision making


(Deductive) reasoning


Problem solving and expertise


Creativity

How can you make the Wasons selection task easier?

Make the rule a social rule e.g. if a newspaper is taken money must be payed


Paper


No £


No paper


Money

What bias do people show in reasoning

Belief


Generate or accept conclusiojs that link terms in the problem to form sentences that conform to pre-existing beliefs, even if conclusions dont really follow