Higher visual processing (perception of colour and motion)

Question 1

M Cells project from the ___(a)___ Nucleus to Layer __(b)___. The cells in Layer _(a)___ project to Layer __(c)__.

Answer 1

(a) lateral geniculate
(b) IVC-alpha
(c) IVB

Question 2

Cells in Layer IVB show ____(a)___ selectivity

Answer 2

(a)directional/orientation

ie preference for the direction of motion of the target.

Question 3

There are two large cortical streams of visual processing in our body. The __(a)__ pathway transmits where in our visual field the target is. While the __b__ pathway transmits what the target is.

Answer 3

(a) Dorsal

(B) ventral

Question 4

The dorsal visual stream includes the middle __a__ lobe, specialized for processing object _b__

Answer 4

a) temporal (“Area MT”)

b) motion

Question 5

Area MT received input from cells in layer ___a___ of the primary _b__ cortex

Answer 5

a) IVB

b) visual

Question 6

Neurons in area MT have __a_(large/small) receptive fields, optimized for detecting movement, and most cells exhibit _b__ selectivity. This area also has ____c____ columns that drive the movement of the eyeball to track an object.

Answer 6

a) large
b) directional
c) direction-of-motion

Question 7

List red, blue, and green from highest to lowest wavelength

Answer 7

Red (560), Green (530), Blue (430)