Chapter 4

Question 1

synesthesia 126

Answer 1

one sense is evoked by another -

Question 2

transduction 127

Answer 2

many sensors in the body send signals to the CNS

Question 3

psychophysics 129

Answer 3

measuring strengths of a stimulus and the observer’s sensitivity to that stimulus

Question 4

absolute threshold 129

Answer 4

The minimal intensity needed to just barely detect a stimulus

Question 5

just noticeable difference 130

Answer 5

a small change in a stimulus can hardly be detected

Question 6

Weber’s Law 130

Answer 6

The jnd is always the same proportion

Question 7

signal detection theory 131

Answer 7

a person’s response varies on the person’s sensitivity to the stimulus in the presence of noise

Question 8

sensory adaptation 133

Answer 8

go outside, cant see at frist, body adapts

Question 9

visual acuity 134

Answer 9

The ability to see fine detail

Question 10

retina 135

Answer 10

light sensitive tissue at the back of the eye

Question 11

accommodation 135

Answer 11

the process that the eye maintains a clear image

Question 12

cones 136

Answer 12

Photoreceptors that detect color during day

Question 13

rods 136

Answer 13

photoreceptors that we use at night

Question 14

fovea 136

Answer 14

part of retina where the vision is the clearest

Question 15

receptive field 138

Answer 15

a region of the sensory surface that causes a change in firing rate of that neuron

Question 16

trichromatic color representation 140

Answer 16

The pattern of responding across the 3 types of cones that provides a unique code for each color

Question 17

color-opponent system 141

Answer 17

pairs of visual neurons that work in opposition

Question 18

area V1 141

Answer 18

The part of the optic lobe that contains the primary visual cortex

Question 19

visual-form agnosia 143

Answer 19

The inability to recognize objects by sight

Question 20

binding problem 145

Answer 20

how objects are linked together in out vision so we dont just see blobs of color

Question 21

illusory conjunction 145

Answer 21

a perceptual mistake where features are incorrectly combined

Question 22

feature integration theory 145

Answer 22

you dont need to focus to detect a stimulus but is required to bind them

Question 23

perceptual constancy 148

Answer 23

even though other things may change, perception remains the same

Question 24

template 150

Answer 24

“a memory” a picture in your retinal image

Question 25

monocular depth cues 151

Answer 25

info about depth when viewed with one eye

Question 26

binocular disparity 152

Answer 26

the difference in the retinal images of the two eyes shows depth

Question 27

apparent motion 154

Answer 27

it appears like movement but its just an illusion. (ex construction arrows)

Question 28

change blindness 155

Answer 28

when people fail to detect change

Question 29

Wave length determines

Answer 29

color

Question 30

amplitude determines

Answer 30

brightness