Vision II/III

Question 1

Mapping the visual field

Answer 1

Question 2

When is something considered to be a primary cortex?

Answer 2

Its directilly “plugged into” the thalamus

Question 3

What distinguishes magno-­cellular from parvo-cellular cells in the thalamus?

Answer 3

Parvo layers recieve cones and magno layers recieve rods

Question 4

How many layers does the LGN have?

Answer 4

6

Question 5

How many parvo cellular and magno cellular layers are there?

Answer 5

(2) Layers 1 & 2 are magno (rods)
(4) Layers 3-6 are parvo (cones)

Question 6

What is the Striate cortex?

Answer 6

the primary visual cortex. (V1)

Question 7

What 2 streams of visual information flow through the cortex? Where do these streams go, and what are they used for?

Answer 7

Dorsal stream: how do i act (parietal lobe)

Ventral stream: What am i seeing. (temporal lobe)

Question 8

cells that are ‘higher’ in the visual processing hierarchy are more responsive to what type of visual features?

Answer 8

Complex. The higher up you go the more complex the visual features get.

Question 9

Sensory stimuli recorded as frequency

Answer 9

Question 10

Receptive field hierarchies

Answer 10