receptive field of visual neurons Flashcards

1
Q

what is a visual receptive field?

A

the area of the retinal that when stimulated with light changes the cells activity
-comes in different forms like circular and rectangular
-

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1
Q

Hubel and Wiesel

A

activity patters of visual neurons determine the location of the stimulus in space and what it is
-neuronal firing rate is proportional to the strength of light intensity

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2
Q

is the V1 rectangular or circular?

A

rectangular

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3
Q

how many areas does a receptive field have?

A

a center and a surround that produce opposite responses

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4
Q

On center is ___ surround

A

off

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5
Q

off center is ____ surround

A

on

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6
Q

when does the cell fire most?

A

when there is contrast between receptive fields

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7
Q

what is the effect if light is simultaneously shown in both areas?

A

weak or no effect.

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8
Q

receptive fields in the fovea are (bigger/smaller)
compared to those in the periphery?

A

smaller

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9
Q
A
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