eye

Question 1

pupil

Answer 1

small opening in centre or iris

Question 2

cornea

Answer 2

transparent covering that bends light rays into pupil

Question 3

iris

Answer 3

coloured, circular muscle

dilates.contracts to regulate entering ligth

Question 4

lens

Answer 4

disc that flattens to see distance + bulges fro close images.
refracts light onto the retina

Question 5

presbyopia

Answer 5

old eyes

Question 6

retina

Answer 6

thin light sensitive membrane containing photoreceptors (rod/cones)
images projected upside down and reversed

Question 7

rods

Answer 7

black, white, grey (120mil)

Question 8

cones

Answer 8

colour, fine detail. need light (6mil)

Question 9

fovea

Answer 9

clearest vision (30k cones)

Question 10

rods and cones do what with light waves

Answer 10

transduce light waves via the optic nerve to the occipital love

Question 11

why do we have a blind spot

Answer 11

no rods/cones, optic nerve

Question 12

sun blindness

Answer 12

dark adaptation gradual - rods adjust slowly

light adaptation quick - cones adjust quickly

Question 13

hyperopia/farsighted

Answer 13

distance from the lens to the retina is too short

Question 14

myopia/nearsighted

Answer 14

distance form the lens is too long

Question 15

emmetropia

Answer 15

distance from the lens to the retina is appropriate, normal

Question 16

three dimensions to the colour we experience

Answer 16

hue - colour
saturation - purity
brightness - intensity

Question 17

young-helmholtz TRICHROMATIC theory

Answer 17

retina contains three types of colour receptors:

RED GREEN BLUE

Question 18

opponent-process theory

Answer 18

opposing retinal processes enable colour vision
red-green
yelloe-blue
white-black

Question 19

trichromats

Answer 19

see + perceive 3 primary colours

Question 20

dichromats

Answer 20

partially colour blind

Question 21

monochromats

Answer 21

can’t see colour

Question 22

feature detectors

Answer 22

nerve cells that respond to specific features or stimulus

shape, angles, movement

Question 23

feature detectors and supercells provide what

Answer 23

instant analyses of objects in the world around people

Question 24

parallel processing

Answer 24

processing many aspects of a problem/scene simultaneously

brain integrates parts (binding) into a whole perceived image

Question 25

consequences to damage to neural networks (parallel processing)

Answer 25

damage to neural networks may render a person unable to perceive moment, form, depth, colour

Question 26

form perception - figure ground

Answer 26

objects stand out from surroundings

Question 27

for perception - grouping

Answer 27

organize stimuli into meaningful groups (similarity, proximity, continuity, closure)

Question 28

BINOCULAR DEPTH CUES

Answer 28

each eye sees in two dimensions, together n=both eyes see 3D

Question 29

retinal disparity

Answer 29

distance. closer object = more disparity

Question 30

types of perceptual constancy

Answer 30

size (as images grow/shrink our brain understands distance)
shape
brightness
colour

Question 31

real vs apparent motion

Answer 31

real - perception of moving when something else moves

apparent - phi phenomenon, sequence of lights moving, autogenetic illusion

Question 32

bottom up processing

Answer 32

UNFAMILIAR

- individual bits processed as a whole

Question 33

top-down processing

Answer 33

FAMILIAR

• experience, knowledge + context influence perception
• our perceptual set (green ice cream)