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Psychology 100 Exam 2 > Sensation and Perception > Flashcards

Sensation and Perception Flashcards

Week 6

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1
Q

absolute threshold

A
  • minimum amount of stimulus that can be detected 50% of the time
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2
Q

accommodation

A
  • lens changes shape to focus on near/far objects by adjusting how light hits the retina
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3
Q

acuity

A
  • sharpness/clarity of sensory perception
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4
Q

basilar membrane

A
  • thin strip of tissue
  • in the cochlea
  • contains hair cells/sensory receptors for auditory
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5
Q

binocular depth cues

A

both eyes

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6
Q

blind spot

A

can’t respond to visual info in that part of visual field

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7
Q

bottom-up processing

A

perceptions built from sensory input

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8
Q

cochlea

A
  • fluid-filled
  • snail shaped
  • has the sensory receptor cells of auditory system
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9
Q

color blindness

A
  • defect in cones of retina
  • difficult to see variations in light wavelengths
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10
Q

cones

A
  • photoreceptor to see color
  • in fovea
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11
Q

cornea

A
  • transparent covering of eye
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12
Q

dark adaptation

A
  • eyes adjust to different light conditions
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13
Q

depth perception

A
  • ability to perceive depth
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14
Q

feature detector cells

A
  • nuerons in visual cortex that detect special stimuli ex. corners, movement, angles
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15
Q

fovea

A

-indentation in retina that holds cones

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16
Q

inattentional blindness

A
  • failure to notice something visible because of lack of attention
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17
Q

just noticeable difference

A
  • difference in stimuli required to detect difference between stimuli
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18
Q

lens

A
  • curved and transparent
  • provides additional focus for light entering
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19
Q

monocular depth cues

A

one eye

20
Q

olfaction

A
  • initial process of detecting a smell through olfactory receptors
21
Q

opponent process theory

A
  • black-white, yellow-blue, and red-green
  • activating one color in pair inhibits perception of other pair
22
Q

optic nerve

A
  • carries visual info from retina to brain
23
Q

organ of Corti

A
  • in cochlea
  • hair cells/sensory receptors for sound
  • sound waves to electrical signals
24
Q

perceptual constancy

A
  • perceiving changed object as constant shape, size, and brightness
25
Q

phantom pain

A
  • pain felt in removed body part
26
Q

place theory

A
  • different parts of basilar membrane are sensitive to sounds of different frequencies
27
Q

proprioception

A
  • perception of body position
28
Q

psychophysics

A
  • study of relationship between physical stimuli and sensation and perception
29
Q

parallel processing

A
  • process many stimuli/info at the same time
30
Q

pupil

A
  • light passes through this small hole in eye
31
Q

retina

A
  • light sensitive lining of eye
32
Q

rods

A
  • photoreceptors for depth and shadow
33
Q

selective attention

A
  • focusing on specific stimuli/info and tuning out the rest
34
Q

semicircular canals

A
  • fluid filled tubes
  • detect head movement
  • balance and equilibrium
35
Q

sensation

A
  • sensory info detected by sensory receptor
36
Q

sense receptor

A
  • detects stimuli and converts to chemical energy
37
Q

sensory adaptation

A
  • not perceiving a constant stimuli
38
Q

signal detection theory

A
  • identify a stimulus with background noice
39
Q

somatosensory

A
  • detects physical sensation
40
Q

subliminal perception

A
  • message below threshold of conscious awareness
41
Q

taste buds

A
  • taste receptor cells
42
Q

timbre

A
  • sound’s quality; impacted by frequency, amplitude, and timing of sound waves
43
Q

top-down processing

A
  • available knowledge, experiences, and thoughts
  • more deliberate
44
Q

transduction

A
  • sensory stimulus energy to action potential
45
Q

trichromatic theory

A
46
Q

vestibular sense

A
47
Q

Weber’s law

A

Psychology 100 Exam 2 (2 decks)

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