The eye and retina

Question 1

describe the cross section through peripheral retina

Answer 1

-pigment epithelium
-photoreceptor layer
-inner nuclear layer (interneurones)
-ganglion cells

Question 2

how do photoreceptors report changes in illumination?

Answer 2

from one moment to another

Question 3

Synaptic mechanisms producing ON and OFF responses

Answer 3

see pics

Question 4

Some theories underpinning the generation of receptive field surrounds

Answer 4

see pics

Question 5

Magnocellular and parvocellular ganglion cells and their roles in visual perception

Answer 5

see pic

Question 6

cell (dendritic tree) and receptive field size

Answer 6

P: small M: 4x as large

Question 7

receptive field surround

Answer 7

P: strong M: relatively weak

Question 8

temporal response

Answer 8

P: slow & sustained M: fast & transient

Question 9

sensitivity

Answer 9

P: low M: high

Question 10

Axon

Answer 10

P: moderate diameter/ speed M: big, fat and very fast

Question 11

wavelength

Answer 11

P: red-green opponent in central regina M: achromatic