Sensation and Perception Flashcards
Week 6 (47 cards)
1
Q
absolute threshold
A
- minimum amount of stimulus that can be detected 50% of the time
2
Q
accommodation
A
- lens changes shape to focus on near/far objects by adjusting how light hits the retina
3
Q
acuity
A
- sharpness/clarity of sensory perception
4
Q
basilar membrane
A
- thin strip of tissue
- in the cochlea
- contains hair cells/sensory receptors for auditory
5
Q
binocular depth cues
A
both eyes
6
Q
blind spot
A
can’t respond to visual info in that part of visual field
7
Q
bottom-up processing
A
perceptions built from sensory input
8
Q
cochlea
A
- fluid-filled
- snail shaped
- has the sensory receptor cells of auditory system
9
Q
color blindness
A
- defect in cones of retina
- difficult to see variations in light wavelengths
10
Q
cones
A
- photoreceptor to see color
- in fovea
11
Q
cornea
A
- transparent covering of eye
12
Q
dark adaptation
A
- eyes adjust to different light conditions
13
Q
depth perception
A
- ability to perceive depth
14
Q
feature detector cells
A
- nuerons in visual cortex that detect special stimuli ex. corners, movement, angles
15
Q
fovea
A
-indentation in retina that holds cones
16
Q
inattentional blindness
A
- failure to notice something visible because of lack of attention
17
Q
just noticeable difference
A
- difference in stimuli required to detect difference between stimuli
18
Q
lens
A
- curved and transparent
- provides additional focus for light entering
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
phantom pain
- pain felt in removed body part
26
place theory
- different parts of basilar membrane are sensitive to sounds of different frequencies
27
proprioception
- perception of body position
28
psychophysics
- study of relationship between physical stimuli and sensation and perception
29
parallel processing
- process many stimuli/info at the same time
30
pupil
- light passes through this small hole in eye
31
retina
- light sensitive lining of eye
32
rods
- photoreceptors for depth and shadow
33
selective attention
- focusing on specific stimuli/info and tuning out the rest
34
semicircular canals
- fluid filled tubes
- detect head movement
- balance and equilibrium
35
sensation
- sensory info detected by sensory receptor
36
sense receptor
- detects stimuli and converts to chemical energy
37
sensory adaptation
- not perceiving a constant stimuli
38
signal detection theory
- identify a stimulus with background noice
39
somatosensory
- detects physical sensation
40
subliminal perception
- message below threshold of conscious awareness
41
taste buds
- taste receptor cells
42
timbre
- sound’s quality; impacted by frequency, amplitude, and timing of sound waves
43
top-down processing
- available knowledge, experiences, and thoughts
- more deliberate
44
transduction
- sensory stimulus energy to action potential
45
trichromatic theory
46
vestibular sense
47
Weber's law
