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29 January, 04:45

In which of the following situations would an on-center/off-surround cell respond LEAST strongly?

a. A spot of light illuminates part of the surround

b. The entire surround is illuminated

c. The entire center is illuminated

d. The entire center and surround are illuminated

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Answers (2)
  1. 29 January, 06:23
    0
    b. the entire surround is illuminated

    The region inside the open field is subdivided into two areas, focus and encompass. There are two essential sorts of ganglion cell responsive fields: ON center/OFF surround cell: Flashing little brilliant spot in the middle subregion expands the cell's reaction. Glimmering a splendid annulus in the encompass subregion hinders the cell's reaction. There is practically no reaction to a huge (full field) spot of light that covers both the middle and the encompass in light of the fact that excitation in the inside drops the hindrance from the encompass, called lateral inhibition

    An OFF-center/ON-surround ganglion cell has the contrary plan. It gets restraint from a little spot of light in the inside, and excitation from an annulus in the encompass.
  2. 29 January, 08:10
    0
    b. The entire surround is illuminated

    Explanation:

    An on-center/off-surround ganglion cell has the alternate composition. It gets an excitation from a small spot of light in the center or at the middle and an inhibition from an annulus in the surround.

    An on-center/off-surround ganglion cell respond LEAST strongly when the entire surround is illuminated.
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