Psych Test

Front 1

Sensation - body detecting and responding to physical stimuli.

Back 1

Perception - brain interpreting and giving meanign to sensations.

Front 2

Sensory information--->Sensation--->Perception

Back 2

Reception->Transduction->Transmission->Perception/Interpretation

Front 3

Reception:

Sense organs (receptors) detect energy (stimuli)

Back 3

Transduction:

Energy must be converted to a neural impulse so it can be sent to the brain.

Front 4

Transmission:

Neural impulse is sent as an action potential to the thalamus.

Back 4

Perception/Interpretation:

Thalamus sends the sensory information to the relevant sensory area in the brain to be interpreted.

Front 5

The brain and eyes work together to provide sight.

Back 5

Eye has a natural blind spot where optic nerve exits through the retina. Brain compensates for blind spot.

Front 6

Absolute threshold - minimum amount of stimuli required to perceive a stimulus.

Back 6

Reception -

Each receptor has a receptive field which is an area the receptor can respond to stimuli.

Front 7

Retina - receptive field for our eyes. It detects all light energy received from in front of you.

Back 7

Photoreceptors - respond to different stimuli and are called rods and cones.

Front 8

Rods - detect low-level light (important at night).

Cannot detect colour.

Poor at fine detail vision.

Not active in high level light.

Higher amount of rods than cones.

Back 8

Cones -

detect high level light and detai vision.

detect colour.

poor at night.

Front 9

Reception - stimulus energy collected by sense organ.

Back 9

Transduction - stimulus eergy converted by receptor cells into electrochemical nerve impulses.

Front 10

Transmission - receptor cells send nerve impulses to primary sensory cortec where specialised receptor cells respond as process of perception begins.

Back 10

Selection -

Can't possibly pay attention to all millions of stimuli that we receive at same time.

therefore, only detect important ones.

Visual stimuli - detecting lines, shapes and colours.

Photoreceptors are selective to range of electromagnetic energy.

Occurs in visual cortex.

Front 11

Organisation - when info reaches brain and is recognised so we can make sense of it.

Assembling features in meangingful manner (gestalt principles)

Back 11

Interpretation -

Past experiences, motives, values and contect involved in process where stimuli is given meaning.

Assignmed to visual stimuli.

Front 12

Taste - chemoreceptors are in taste buds.

present in oral cavity and throat.

taste receptors have life span of 10 days.

Back 12

Taste buds consist of:

Taste pore -

opening through which fluids in outh come in contact with surface of receptor cells.

Taste receptor cells -

modified epithelial cells with surface fols called microvilli. Plasma membrane of microvilli contain receptor sites that bind with chemical molecules.

Front 13

Reception of taste - chemicals dissolve in saliva during chewing.

Back 13

Transduction of taste - chemical energy converted by receptor cells on taste buds into electrochemical nerve impulses.

Front 14

Transmission of taste - from taste buds, nerve impulses travel through thalumus to primary gustatory cortex low in parietal lobe, behind the somatosensory cortex where perception continues.

Back 14

Perception of taste - brain recognizes sesnation of a mix of 5 primary tastes but combine with smell of food, colour and texture.

Front 15

Figure-ground -

Visual scene divided into 'figure' that stands out from 'ground'.

Back 15

Camouflage -

nature overcoming figure-ground principle.

Front 16

Closure - tendency to fill in gaps and perceive object as whole.

Back 16

Similiarity - tendency to perceive parts of visual image that have similiar features as a whole.

Front 17

Proximity - tendency to perceive parts of visual image close together as belonging together.

Back 17

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