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132 Cards in this Set

  • Front
  • Back

The primary function of the senses is to act


as _________

transducers

Information from the sense organs creates _____

sensations

When the brain organizes sensations into meaningful patterns we speak of _________

perception

Energy below a certain minimum intensity is necessary for a sensation to occur. The necessary minimum defines the ________ _________ of a sensory system

absolute threshold

Visible light starts at short wavelengths of 400 nanometers, which we sense in what colors?

Purple of violet

Longer light waves produce what colors?


(at a wavelnght of 700 nanometers)

Red


Orange


Yellow


Green


Blue

Eyes have a ______ to focus images on a light sensitive layer at the back of an enclosed space

lens

In the eye is a layer of ________ in the _______, an area about the size and thickness of a postage stamp

Photoreceptors, retina

Most eye focusing is done at the front of the eye by the _______, a clear membrane that bends light inward

cornea

In focusing, the _____ makes smaller adjustments

lens

The eye has two image sensors called:

rods, cones

The 5 million _____ in each eye work best in bright light

cones

Numbering about 120 million, _______ can't detect colors, only black and white

rods

Each eye has a ______ ______ because there are no receptors where the optic nerve passes out of the eye and blood vessels enter

blind spot

Sound travels as a series of invisible waves of


(peaks)_______ and (valleys)________ in the air

compression, rarefaction

The _______ of sound waves (the number of waves per second) corresponds to the perceived


________ (higher or lower tone) of a sound.

frequency, pitch

The ______ or physical "height" of a sound wave tells how much energy it contains

amplitude

How we hear sound:


Hearing begins with the _____, the visible external part of the ear which acts like a funnel to concentrate sounds. After they are guided into the ear canal, sound waves collide with the ______ ______, (eardrum) setting it in motion. This causes three small bones, the ________ _______ to vibrate. The ossicles link the eardrum with the ________, a snail shaped organ that makes up the inner ear. the stapes is attached to a membrane on the cochlea called the _______ ________. As the oval window moves back and forth, it makes waves in a fluid inside the cochlea.Inside the cochlea tiny ________ _______ detect waves in the fluid. The hair cells are part of the ________ ____ _______, which makes up the center part of the cochlea. A set of ____________ "bristles" atop each hair cell brush against the tectorial membrane when waves ripple through the fluid surrounding the organ of corti. As the stereocilia are bent, nerve impulses are triggered which flow into the brain.

pinna


tympanic membrane


auditory ossicles


cochlea


oval window


hair cells


organ of corti


stereocilia



What are the three auditory ossicles?

Malleus, incus, stapes


OR


hammer, anvil, stirrup

Poor transfer of sounds from the eardrum to the inner ear

conductive hearing loss

Loss of hearing caused by damage to the inner ear hair cells or auditory nerve

Sensorineural hearing loss

Sense of smell

olfaction

Humans carry genes for about ______ types of smell receptors, only about ______ of them are actually expressed

1000, 400

Theory that odors are related to the shapes of chemical molecules

Lock and key theory of olfaction

total loss of sense of smell:



anosmia

partial loss of sense of smell:

dysosmia

Sense of taste

gustation

four basic taste sensations:

In order of most sensitive to and least to:




bitter


sour


salt


sweet

Fifth taste sensation:

Umami

How we taste:




As food is chewed, it dissolves and enters the


_____ _____, where it sets off nerve impulses to the brain

taste buds

Pain carried by large nerve fibers; warns that bodily damage may be occurring:

warning system

pain carried by small nerve fibers; reminding the brain that the body has been injured:

reminding system

Proposes that pain messages pass through neural "gates" in the spinal cord

gate control theory

Gate control theory helps explain __________, one widely used pain control technique.




ex. pinch yourself while having a tooth filled

counterirritation

We spend most of our lives in _______ ________, a state of clear, organized alertness.

Waking consciousness

A condition of awareness distinctly different in quality or pattern from waking consciousness

altered state of consciousness

Excessive daytime sleepiness

hypersomnia

Sleep is described as an ______ _______ _______

innate biological rythym

How many stages of sleep?

4

Stage 1 and what would EEG show

light sleep






small irregular waves with some alpha waves

Stage 2 and what would EEG show

Sleep deepens






sleep spindles start to appear

Stage 3 and what would EEG show

deeper slow wave sleep






Delta waves start to appear

Stage 4 and what would EEG show

Deep sleep






Mostly delta







Completely awake what wave would EEG show

Beta

Eyes closed, relaxed, maybe starting to doze off what would EEG show

Alpha waves

NREM sleep occurs during which sleep stages?

1, 2, 3, 4

REM is associated with ________ and a return to stage ___ EEG patterns

dreaming, 1

Proposes that NREM sleep reduces the overall level of brain activation, allowing unimportant memories to be forgotten while REM sleep sharpens memory for important events from the previous day

Dual process hypothesis of sleep

When a person compulsively uses a drug to maintain bodily comfort, a _______ ________


(addiction) exists

physical dependence

Addiction occurs most often with drugs that cause ______ _______ (physical illness that follows removal of a drug)

withdrawal symptoms

Addiction is often accompanied by a


________ ________ (reduced response to a drug)

drug tolerance

Persons who develop a _______ ________ feel that a drug is necessary to maintain their comfort or well being

Psychological dependence

A ________ is a substance that increases activity in the body and nervous system

stimulant (upper)

A ________ is a substance that decreases activity in the body and nervous system

depressant (downer)

A drug that lowers anxiety and reduces tension

tranquilizers

Many drugs can be rated on a _________-________ scale according to their effects on the central nervous system

stimulation-depression

Amphetamines

upper

nicotine

upper

narcotics

downer

Xanax, Halcion, Librium, valium

tranquilizers/ downers

Sedatives

Downers

cocaine

upper

MDMA

upper

caffeine

upper

Alcohol

downer

Hallucinogens:

Marijuana, LSD, PCP

Occurs when a person or an animal forms a simple association among various stimuli and/or behaviors

associative learning

Refers to understanding, knowing, anticipatin, or otherwise making use of information-rich higher mental processes

cognitive learning

Events that precede a behavior are?

antecedents

Effects that follow a behavior are?

consequences

A form of learning in which reflex responses are associated with new stimuli


(involuntary learning)

Classical conditioning

Learning based on the consequences of responding


(voluntary learning)

Operant conditioning

_________ _________ is based on what happens before we respond

Classical conditioning

A horn is associated with a puff of air to the eye is an example of?

classical conditioning

If you wear a particular hat and get lots of compliments (reward or reinforcement) you are likely to wear it more often. If people make fun (punishment) you will probably wear it less is an


example of?

Operant conditioning

unlearned, untrained, natural =

unconditional

anything that causes a response =

a stimulus

after training or learning =

conditioned

a stimulus innately capable of eliciting a response:




and Pavlov experiment example:

Unconditioned stimulus (US)




meat powder

A reflex is innate or "built in" and elicited by an unconditioned stimulus




and Pavlov experiment example:

unconditioned response (UR)




salivation

A stimulus that does not invoke a response




and Pavlov experiment example:

Neutral stimulus (NS)




bell

A stimulus, that because of learning, will elicit a response




and Pavlov experiment example:

conditioned stimulus (CS)




bell

A learned response elicited by a conditioned stimulus




and Pavlov experiment example:

Conditioned response (CR)




salivating to the bell

Many phobias begin as a _____ ____ ____, or a learned emotional reaction to a previously neutral stimulus

conditioned emotional response (CER)

People who have ______ can often trace their fears back to a time when they were frightened, injured, or upset by a particular stimulus, especially in childhood

phobias

Reducing fear or anxiety by repeatedly exposing a person to emotional stimuli while the person is deeply relaxed

systematic desensitization

Acts that are followed by a positive consequence tend to be repeated

law of effect

any event that follows a response and increases its probability of occurring again

operant reinforcer

Operant reinforcement works best when it is _______ ______, meaning it must be given only after a desired response has occurred.




ex. reinforcer tells a person or animal that a


response was right and worth repeating

Response contingent

Operant reinforcement is most effective when it rapidly follows a _______ ________

correct response

linked series of actions that lead to reinforcement

response chain

increased desirable behavior




like want

reinforcement

decreased that undesirable behavior




don't like don't want

punishment

adding (+)

positive

takeaway (-)

negative

Give the child cookie for sitting quietly in the chair

positive reinforcement

Shutting off TV so child will do their homework

negative reinforcement

Negative reinforcement also increases responding, however it does so by ____________ discomfort



ending (negating, taking away)




ex. you have a headache and take aspirin, your aspirin taking will be negatively reinforced if the headache stops

Child was acting out, so I gave him timeout

positive punishment

positive punishment_______ the likelihood that the response will occur again, it does so by initiating (adding) discomfort

decreases

Child was throwing ball in store, so I took the ball away

negative punishment





Non learned reinforcers, produce comfort, end discomfort, fill an immediate physical need




ex. food, water, sex

Primary reinforcer

Associated with primary reinforcement




ex. praise, attention, approval, success, affection, grades

Secondary reinforcers

Tangible secondary reinforcer




ex. gold stars, poker chips

token reinforcers

Gambling is an example of a ______ reinforcer

gambling

learned desires for attention ad approval

social reinforcers

learning that takes place mechanically, through repetition, memorization, and learning the rules

rote learning

learning based on insight and understanding

discovery learning

learning that occurs without obvious


reinforcement and remains hidden until


reinforcement is provided

latent learning

learning achieved by watching and imitating others

observational learning

The scientific study of overt behavior and mental processes

Psychology

Consists of the brain and spinal cord

central nervous system (CNS)

All parts of the nervous system outside the brain and spinal cord

Peripheral nervous system

carries messages to and from the sense organs and skeletal muscles

somatic nervous system

serves the internal organs and glands

autonomic nervous system




(autonomic=self governing)

Autonomic nervous system has two branches:

sympathetic and parasympathetic nervous system

branch of the ANS that arouses the body

sympathetic branch

branch of the ANS that quiets the body

parasympathetic branch

anything capable of disturbing normal development in the womb

teratogens

Examples of teratogens

radiation, pesticides, lead

press an object in a neonates palm and they will grasp

grasping reflex

reflexive head turning and nursing

rooting reflex

nipple touches infants mouth

sucking reflex

startled by loud noise infant will make hugging motion

moro reflex

Newborn reflexes are:

adaptive

Theory of color vision based on three coding systems (red or green, yellow or blue, black or white)

opponent process theory

Phantom limb




During sleep, sensory inputs from the area of the missing limb are ________. When amputees are awake, _________ inputs from the area of the missing limb conflict with the neuoromatrix, which interprets the conflict as a phantom limb. Sometimes the brain gradually reorganizes to adjust for the sensory loss. After many years the phantom may shrink, until only a hand is felt at the shoulder




*Remember homunculus

suppressed


sensory



Axon function path:

Dendrites to the soma to the axon, which is


covered in a myelin sheath to the axon terminal

Neuron fibers that receive messages from other neurons

Dendrites

Cell body that sends and receives messages

soma

allows information to be passed from neuron to neuron (bulb shaped)

axon terminal

fatty sheath covering axon

myelin