Sensation and perception Flashcards

1
Q

Tendency to pay less attention to a source of stimulation that is non-changing

A

sensory adaptation

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2
Q

Smallest amount of stimulus that can be detected at least 50% of the time

A

absolute threshold

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3
Q

suggests we have different color channels in which activation of one color in each pair inhibits the other color

A

opponent process theory

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4
Q

Sensitive to dim light and excel at seeing in dim lighting

A

rods

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5
Q

Area of retina where vision is clearest. Contains only cones

A

fovea

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6
Q

Opening to allow light into the eye

A

pupil

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7
Q

crosses info closest to the nose over to the opposite hemisphere of the brain

A

optic chiasm

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8
Q

Smallest detectable difference between two stimuli that can be detected at least 50% of the time

A

difference threshold

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9
Q

Infant vision

A

see everything adults see but with less detail, therefore prefer more contrast

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10
Q

bundle of axons at the back of the eye carrying visual info to the brain. Blind spot

A

optic nerve

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11
Q

shortened eyeballs interfere with vision for close up objects

A

faresightedness

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12
Q

Taking in info and using previous knowledge, expectations, etc. to process

A

Top-down

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13
Q

explains colorblindness

A

trichromatic theory

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14
Q

Studying the relationship between stimuli and perception of those stimuli

A

Psychophysics

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15
Q

The stronger the baseline stimulus, the bigger the change needed to notice a difference

A

weber’s law

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16
Q

Muscle that controls the pupil

17
Q

surface of cornea is uneven leading to blurry vision

A

astigmatism

18
Q

Taking in info as is and processing

19
Q

rely on both eyes

A

binocular depth cues

20
Q

suggests there are 3 types of cones that respond to short (blue), medium (green), and long (red) wavelengths of light

A

trichromatic theory

21
Q

Track processed light takes

A

optic nerve, optic chiasm, optic tracts, thalamus, and occipital lobe

22
Q

explains after images

A

opponent process theory

23
Q

The actual intensity of the stimulus and the individual observer’s criteria for deciding whether the stimulus occurred

A

signal detection

24
Q

built in tendencies to organize sensory information in certain ways

A

gestalt psychology

25
Bends light to begin forming an image on the retina
cornea
26
rely on one eye
monocular depth cues
27
L and R eyes transmit different information for near objects
Retinal disparity. Binocular depth cue
28
Translating sensory info into neural signals or messages
transduction
29
monocular depth cues
linear perspective, texture, shading/highlighting, occlusion, relative size
30
carry visual info from the optic chiasm to the thalamus, hypothalamus, and midbrian
optic tracts
31
Network of specialized photoreceptors that process light
retina
32
cultural differences with vision
muller-lyer less common in African and Filipino. Americans look at figure and Chinese look at figure and ground evenly
33
Detect color, operate under normal daylight conditions, and allow us to focus on fine detail
cones
34
Parallel lines look different sizes bc of other lines in the picture but theyre really the same size
ponzo illusion
35
elongated eyeballs interfere with vision for distant objects
nearsightedness
36
We develop a perception for what lines are larger based on a picture even though they're the same. Deals with architecture
muller-lyer illusion
37
Adjusts shape to focus object on retina
lens