Stephen Kuffler's Experiments Revealed That Retinal Ganglion Cells Typically Have

Multiple Choice

Stephen Kuffler's experiments revealed that retinal ganglion cells typically have a circular receptive field, are either excited or inhibited by light by the pattern of light falling on photoreceptors in their receptive field, and are described as on-center or off-center in accordance with their responses.Which of the following light stimuli falling on the receptive field of a ganglion cell would maximally stimulate an on-center ganglion cell?

A) Complete darkness
B) A spot of light falling on the center of the receptive field
C) A light covering the entire receptive field
D) A ring of light directed at the surround portion of the receptive field
E) A large spot covering the entire receptive field alternating with dark pulses