Neuroscience Consider an OFF-center retinal ganglion cell (below), along with fo

Question

Neuroscience

Consider an OFF-center retinal ganglion cell (below), along with four possible stimuli for the center and the surround (white = light, black = no light). a. Which stimulus (A, B, C, or D) when presented to the OFF-center retinal ganglion cell would cause the greatest response (most action potentials)? b. Which stimulus (A, B, C, or D) when presented to the OFF-center retinal ganglion cell would cause the smallest response (fewest action potentials)? c. Which stimulus, A or B, would cause a greater response (more action potentials) in this OFF-center retinal ganglion cell? (Do not consider C or D)

Explanation / Answer

Off- center retinal ganglion cell contains inhibitory cells in the center and excitatory cells in the periphery. In the given four possible stimuli (A,B,C,D), white color represents light and black represents no light.

a) The greatest response is produced by the stimulus D when it is presented to the OFF center retinal ganglion cell.

b) The smallest response is produced by the stimulus A when it is presented to the OFF center retinal ganglion cell.

c) Among the stimuli A and B, the stimulus B produces the greaest response when it is presented to the OFF center retinal ganglion cell.

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