Module 22 - Vision:Sensory + Perceptual Processing

Question 1

pupil

Answer 1

adjustable opening in the center of the eye through which light enters

Question 2

lens

Answer 2

transparent struture behind the pupil that changes shape to help focus images on the retina

Question 3

cones

Answer 3

receptor cells that are concentrated near the center of the retina and detect fine detail and color

Question 4

fovea

Answer 4

the central point in the retina, around which the eyes cones cluster

Question 5

blind spot

Answer 5

the point at which the optic nerve leaves the eye, no receptor cells are located there

Question 6

iris

Answer 6

ring of muscle tissue that forms the colored portion of the eye and controls the size of the pupil opening

Question 7

cornea

Answer 7

protects the eye and bends light to provide focus

Question 8

optic nerve

Answer 8

the light-sensitive inner surface of the eye containing receptor cells

Question 9

retina

Answer 9

begins the process of neural transmission from the eye to the brain

Question 10

rods

Answer 10

receptor cells that detect black, white, and grey and are necessary for peripheral and night vision

Question 11

accomodation

Answer 11

process where the lens changes its shape in order to focus near and far objects on the retina

Question 12

frequency is to amplitude as

Answer 12

intensity is to brightness

Question 13

young-helmholtz trichromatic theory

Answer 13

says the retina contains 3 different color receptors (red-green, blue-yellow, black-white) & that when stimulated together, they can create colors

Question 14

opponent-process theory

Answer 14

says the opposing retinal processes (red-green, blue-yellow, black-white) enable color vision. Some neurons are stimulate by red but inhibited by green, and vice versa.