Vision pt. 2

Question 1

Many __________ can converge on one bipolar cell

Answer 1

rods

Question 2

1 or few __________ can converge on a bipolar cell

Answer 2

cones

Question 3

P ganglion cells are sent by ______ and are for ______ and _______

Answer 3

Cones; color; acuity

Question 4

M ganglion cells are sent by _______ and are for _______ and _______

Answer 4

Rods; Motion; achromatic

Question 5

Optic chiasm

Answer 5

Where optic nerve fibers cross over

Question 6

Lateral geniculate nucleus (LGN)

Answer 6

The visual relay points in the thalamus

Question 7

Striated Cortex

Answer 7

Early visual cortex/primary visual cortex (V1)

Question 8

Binocular zone

Answer 8

Where left and right visual fields overlap

Question 9

Monocular zone

Answer 9

The portion of visual fields associated with one

Question 10

The right ________ and _________ for left vision

Answer 10

LGN; V1

Question 11

The _______ LGN and V1 is for right vision

Answer 11

Left

Question 12

Process of left vision into the visual cortex (3 steps)

Answer 12

1. Left visual field is left nasal and right temporal
2. Left nasal crosses and goes to RLGN with right temp.
3. RLGN leads to RV1

Question 13

Process of right vision into the visual cortex (3 steps)

Answer 13

1. Right visual is right nasal and left temporal
2. Right nasal crosses and goes to LLGN with Left temp.
3. LLGN leads to LV1

Question 14

What are the bottom 2 layers ? Are they thinner or thicker?

Answer 14

Magnocellular; thinner

Question 15

Magnocellular cells synapse with _ Retinal ganglion cells

Answer 15

M

Question 16

What are the top 4 layers? Are they thinner or thicker?

Answer 16

Parvocellular; thicker

Question 17

Parvocellular cells synapse with _ retinal ganglion cells

Answer 17

P

Question 18

What cells are unable to see?

Answer 18

Koniocellular Cells

Question 19

What are koniocellular cells used for? What do they synapse with?

Answer 19

Color and P

Question 20

The LGN process information from both/a single eye(s), but one/multiple visual field(s)

Answer 20

both; one

Question 21

What is the primary visual cortex?

Answer 21

A part of the occipital lobe that directly correlates with visual processing

Question 22

Left V1 processes the ________ visual field

Answer 22

Right

Question 23

Right V1 processes the _________ visual field

Answer 23

Left

Question 24

What does Retinotopic mean?

Answer 24

Neurons organized in V1 like a map of the retina

Question 25

V2/V3 responsibilities

Answer 25

Further processing; combination of signals

Question 26

V4 responsibilities

Answer 26

Color interpretation

Question 27

V5/MT responsibilities

Answer 27

Motion detection

Question 28

Dorsal pathway is called the _________ pathway. It goes ______ from V1 to __________________. It’s main task is to ________________ and _____________________

Answer 28

Where; Up, Parietal; Identify objects and facial recognition

Question 29

The Ventral pathway is called the ___________ pathway. It goes ________ from V1 to ____________. It’s main task is to ________________

Answer 29

What; horizontally; temporal; Recognize spatial awareness