The Human Eye

Question 1

Once light passes through the iris, it encounters the _________

Answer 1

Lens

Question 2

The area of the inner surface of the eye that contains rods and cones

Answer 2

Retina

Question 3

A muscular membrane whose dilation regulates the amount of light that enters the eye

Answer 3

Iris

Question 4

The black looking opening in the center of the iris, through which lights enters the eye

Answer 4

Pupil

Question 5

Cells that respond to light

Answer 5

Photoreceptors

Question 6

There are two types of photo receptors

Answer 6

1. Rods (allow us to see in black and white)
2. Cones (the one that provides color in our vision)

Question 7

Neurons that conduct neural impulses from rods and cones to ganglion

Answer 7

Bipolar cells

Question 8

Neurons who’s axons form the optic nerve

Answer 8

Ganglion cells

Question 9

What are the 4 types of neurons in the eye?

Answer 9

A. Cones
B. Rods
C. Bipolar cells
D. Ganglion cells

Question 10

The nerve that transmit sensory information from the eye to the brain

Answer 10

Optic nerve

Question 11

An area near the center of the retina that is dense with cones and where vision is consequently acute

Answer 11

Fovea

Question 12

The area of the retina where axons from ganglion cells meet to form the optic nerve

Answer 12

Blind spot

Question 13

Sharpness of vision

Answer 13

Visual aquity

Question 14

The color of the light, as determined by its wavelength

Answer 14

Hue

Question 15

Transparent tissue forming the outer surface of the eyeball

Answer 15

Cornea

Question 16

The color of light as determined by the wave length

Answer 16

Hue

Question 17

Transparent tissue forming the outer surface of the eye ball

Answer 17

Cornea

Question 18

A conditioned characterized by the brittleness of the lens

Answer 18

Presbyopia

Question 19

The process of adjusting to condition of lower lighting by increasing the sensitivity of rods and cones

Answer 19

Dark adaptation

Question 20

The part of the electromagnetic spectrum that eye and produces visual sensations

Answer 20

Visible light

Question 21

Descriptive of colors of the spectrum that when combined produce white or nearly white light

Answer 21

Complementary

Question 22

The lingering visual impression made by stimulus that have been removed

Answer 22

After image

Question 23

The theory that color vision is made possible by three types of cones, some of which respond to red light, some to green and some to blue

Answer 23

Trichromatic theory

Question 24

The theory that color vision is made possible by three types of cones, some of which respond to red or green light, some some to blue or yellow and some to the intensity of life

Answer 24

Opponent process theory

Question 25

A person with normal color vision

Answer 25

Trichromatic

Question 26

A person who is sensitive to black and white only and hence color blind

Answer 26

Monochromat

Question 27

A person who is sensitive to black - white and either red - green or blue - yellow and hence is partially color blind

Answer 27

Dichromat

Question 28

The tendency to perceive a broken figure as being complete or whole

Answer 28

Closure

Question 29

The tendency to integrate perceptual elements into meaningful patterns

Answer 29

Perceptual organization

Question 30

Nearness; the perceptual tendency to group together objects that are near one another

Answer 30

Proximity

Question 31

The perceptual tendency to group together objects that are similar in appearance

Answer 31

Similarity

Question 32

The tendency to perceive a series of points or lines as having unity

Answer 32

Continuity

Question 33

The tendency to perceive elements that move together as belonging together

Answer 33

Common fate

Question 34

The use of contextual information or knowledge of a pattern in order to organize parts of patterns

Answer 34

Top down processing

Question 35

The organization of the part ps of a pattern to recognize, or form an image of, the pattern they compose

Answer 35

Bottom up processing

Question 36

Sensations that give rise to misperceptions

Answer 36

Illusions

Question 37

A visual illusion in which the perception of motion is generated by a series of stationary images that are presented in rapid succession

Answer 37

Stroboscopic

Question 38

Stimuli suggestive of depth that can be perceived with only one eye

Answer 38

Monocular cue

Question 39

A monocular cue for depth based on the convergence (coming together) of parallel lines as they recede into distance

Answer 39

Perspective

Question 40

A monocular cue for depth based on the perception that closer objects appear to have a r rougher (more detailed surfaces)

Answer 40

Texture gradient

Question 41

A monocular cue for depth based on the perception that nearby objects appear to move more rapidly in relation to our motion

Answer 41

Motion paraliax

Question 42

Stimuli suggestive of depth that involves simultaneous perception by both eyes

Answer 42

Binocular cues

Question 43

A binocular cue for depths based on the difference in the image cast by an object on retinas of the eyes as the object moves closer to farther away

Answer 43

Retinal disparity

Question 44

A binocular cue for depth based on the inward movement the eyes as they attempt to focus on an object that is drawing nearer

Answer 44

Convergence

Question 45

The tendency to perceive an object as being the same size even as the size of it’s retinal image changes according to the objects distance

Answer 45

Size constancy

Question 46

The tendency to perceive an object as being the same color even though lighting conditions change its appearance

Answer 46

Color constancy

Question 47

The tendency to perceive an object as being the same color even though lighting conditions change it’s intensity

Answer 47

Brightness constancy

Question 48

The tendency to perceive an object as being the shape although the retinal image varies in shape as it rotates

Answer 48

Shape constancy