Sensation and Perception V2

Question 1

Rods

Answer 1

Photoreceptors that detect black, white, gray and movement. Necessary for peripheral and dim-light vision and distributed through the retina.

Question 2

Cones

Answer 2

Photoreceptors that detect color and fine detail in bright-light conditions. Most concentrated at the fovea.

Question 3

Bipolar cells

Answer 3

Second layer of neurons in the retina that transmitted impulses from rods/cones to ganglion cells.

Question 4

Ganglion cells

Answer 4

Third layer of neurons in the retina, whose axons converge to form the optic nerve.

Question 5

Blind spot

Answer 5

Region of the retina where the optic nerve leaves the eye with no receptor cells, creating an area with no vision.

Question 6

Optic nerve

Answer 6

Nerve formed by ganglion cell axons; carries the neural impulses from the eye to the thalamus of the brain.

Question 7

Acuity

Answer 7

Ability to detect fine details. Can be affected by small distortions in the shape of the eye.

Question 8

Dark adaptation

Answer 8

Increased visual sensitivity that gradually develops when it gets dark.

Question 9

Feature detectors

Answer 9

Individual neurons in the primary visual cortex/occipital lobes that respond to specific features of a visual stimulus.

Question 10

Parallel processing

Answer 10

Simultaneously analyzing different elements of sensory information.