Visual Pathways Flashcards Preview

Physiology > Visual Pathways > Flashcards

Flashcards in Visual Pathways Deck (16):
1

Less powerful but movable.

The lens

2

More powerful but fixed.

The cornea

3

In this type of eye defects we use concave lens to diverge the light.

Myopia

4

In this type of eye defects we use convex lens to converge light.

Hyperopia

5

Far sightedness due to aging.

Presbyopia

6

Active in low light levels and has a single range of wavelength.

Rod

7

Active in high light levels and has different ranges of wavelength.

Cone

8

Highest density of cones, which gives very fine detailed picture.

The fovea

9

What are the factors that affect the spatial acuity?

Receptor density + convergence ratio

10

Depolarized by light in their RF center.

ON bipolar cells

11

Have spiking responses in the center.

ON center ganglion cells

12

Controls eye and head orienting responses.

Superior colliculus

13

Which type of ganglion cells is color sensitive and sensitive to fine stimulus?

P- type cells

14

MT

Motion

15

V4

Shape and color

16

TE

Object recognition