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cog psych > lecture 4 visual perception > Flashcards

lecture 4 visual perception Flashcards

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1
Q

akenotposia

A

unable to percieve motion, is able to notice object change position but not see it move

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2
Q

COPLVROV

path of light
light enters through the ____, the ___ opens or closes to control the amount of light,___ refract light rays due to ____
causeing a ___ on the retina

A

through the cornea
iris
cornea

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3
Q

retina layers and uses
1.
2.
3.

A

photos go to photocreceptors
stimulate bipolor and ganglioncells which make up a bundle of nerve fibers called the optic nerve

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4
Q

responsible for laterial interaction in the retina

A

amercrine and horozontal cells

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5
Q

center of the retina

A

fovia

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6
Q

light sensitive cells in back of eye

A

photoreceptors

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7
Q

2 types of photoceptors adn
1.rods
2. cones

differeiciate between the two

A

rods: black and white, low light sensitive

cones: COLORRR, not light sensitive
have short, medium, long

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8
Q

what deos the fovia do

A
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9
Q

what is the relatinsip between fovia and color

A

as we dec d to fovia, the amt of hue inc

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10
Q

rods popukate the ___ regions of the retina

A

outer

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11
Q

rods and cones do nit repot direclt to the cortex

true or false

A

true

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11
Q

where nerual fibers make up rods exit the eye

A

blind spot

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12
Q

lateral inhibition

A

pattern of cells stimulate stop activity of other cells

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13
Q

me has 2 guys strapped to a chair, i point a gun at guy a. guy a is SO INTENSLY stimulated/overwhelmed that he screams and guy b stops processing. another guy is in a different room. these guys fear responce goes across to each other and inhibition dec as the cells continue

this is an extreme example of

A

lateral inhibition

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14
Q

nervous systeme relationsip btw stimulus and epresented activity

A

visual coding

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15
Q

recod moment by moment electrical changes in a SINGLE neuron

A

single cell coding

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16
Q

how does single cell coding work?

A

elecrode is sx into neuron and comp recods firing rate of action potential

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17
Q

center surround cells
firing rste left to right

ex:

A

ganglion cells inr etina

18
Q

advangatace of parallel processing

A

divide and conquer, processing happens alll at once
mutual influence
no watigng for other processes compelte

19
Q

SERIAL processing

A

step by step processing

20
Q

what system does what
damage to this region results in

A

id of cistual objects

agnosia

21
Q

where system

A

processing LOCation of visual obj

damage=

22
Q

spatial position

A

visual areas processing feature assignd spatial feature of opj to combine to create a scnee

23
Q

neural syncrony

A

fire in a syncronous rythm with each other

24
Q

form perception,
describe process of seeign an object

A
  1. recognize simple visutal features
  2. arage reature into full obj and give it meaning
  3. recognize obj
25
Q

gestalt psych

SPGCS (spugus)

A

the whoel is different than sum of part

26
Q

ambigious figure

A

perception based on knowledge

27
Q

similarity

A

tendancy to group into collums

28
Q

proximity

A

grouo by closenesss

29
Q

good continuation

A

see cont green bar rather than 2 similar thignfs

30
Q

closeure

A

fill in broken lines

30
Q

simplicitity

A

look at object in the simplest way possible

31
Q

orginazation features

A
32
Q

perpetual process involces

A

info gathering anf itnerpretation

33
Q

perceptual constncy

A

percieve constsnt obj properties through changes shape and size

34
Q

brightness cosnt

A

percive brightness of obj accuacy

35
Q

size constancy

A

correctly percieve an obj size outside of retinal changes

36
Q

cpnstancy is inflenced by relationships between objects explain

A

distance can dec image size and mispercieve size

37
Q

shape constancy

A

see shape regardless of retinal changes

38
Q

distance cues

A

features of stimulus that indicate obj position

39
Q

binocular disparity

A

difference between each eyes view

40
Q

dept depend on what eye can see by itslef

A

monocular cues

41
Q

motion is a distance and depth cue

A

motion parallax: pattern of motion in retinal imafes

42
Q
A

cog psych (8 decks)

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