Ch 6: Vision

Front 1

The cornea is an adjustable structure in the eye that focuses light.

Back 1

False; the cornea is non-adjustable, the lens is

Front 2

Light from the right side of the world strikes the left side of the retina.

Back 2

True

Front 3

Cones are essential for color vision.

Back 3

True. & rods for peripheral

Front 4

Photopigments are stable in the dark.

Back 4

True

Front 5

The retinex theory accounts for the principle of color constancy.

Back 5

True

Front 6

Some people with damage to area V1 show a surprising phenomenon called blindsight.

Back 6

True

Front 7

A person with prosopagnosia cannot recognize voices.

Back 7

False; faces

Front 8

Damage to area V4 would likely cause problems with color constancy.

Back 8

True

Front 9

Movement of the eyes suppresses activity in the visual cortex for a brief moment.

Back 9

True

Front 10

Infants are born with the ability to control their visual attention.

Back 10

False

Front 11

In humans as in other species, the visual cortex is more plastic early in life.

Back 11

True

Front 12

The law of specific nerve energies states that:

Back 12

every stimulation of the optic nerve is perceived as light.

Front 13

In what order does visual information pass through the retina?

Back 13

receptor cells, bipolar cells, ganglion cells

Front 14

The optic nerve is composed of axons from which kind of cell?

Back 14

ganglion cells

Front 15

Which of the following characterizes the fovea?

Back 15

It has the greatest perception of detail.

Front 16

Which receptors are responsible for the perception of color?

Back 16

cones

Front 17

Which theory emphasizes the idea that color vision depends on the relative responses of three kinds of cones?

Back 17

Young–Helmholtz theory

Front 18

Color constancy is the ability to:

Back 18

recognize the color of an object despite changes in lighting.

Front 19

The enhancement of contrast at the edge of an object is the result of:

Back 19

lateral inhibition in the retina.

Front 20

In the vertebrate retina, which cells are responsible for lateral inhibition?

Back 20

horizontal cells

Front 21

Which ganglion cells, if any, are located mostly in or near the fovea?

Back 21

Parvocellular

Front 22

Visual information from the lateral geniculate area goes to the:

Back 22

primary visual cortex.

Front 23

Once within the cerebral cortex, the magnocellular pathway continues as a pathway sensitive to:

Back 23

movement

Front 24

Damage to the dorsal stream may interfere with:

Back 24

reaching out to grasp an object.

Front 25

Which of the following would most strongly excite a simple cell in the primary visual cortex?

Back 25

square picture frame

Front 26

What is one way to determine whether a given cell in the primary visual cortex is "simple" or "complex"?

Back 26

whether it can respond equally to lines in more than one location

Front 27

An inability to recognize objects despite otherwise satisfactory vision is called:

Back 27

visual agnosia

Front 28

Color perception depends MOSTLY on the:

Back 28

parvocellular pathway

Front 29

The ability that you have to determine that your eyes are moving, instead of the room that you are in, is a function of which brain area?

Back 29

area MST

Front 30

Most of the neurons in the visual cortex of very young kittens respond to:

Back 30

both eyes, and continue that way.

Front 31

Children with strabismus fail to develop:

Back 31

stereoscopic depth perception.