Photoreceptors in the Surround Portion of a Receptive Field Modify

question 125

Multiple Choice

Photoreceptors in the surround portion of a receptive field modify the light information received by photoreceptors in the center of the receptive field.They accomplish this by

• A) firing action potentials onto the photoreceptors in the center.
• B) modifying communication between the center photoreceptors and their bipolar cells through horizontal and amacrine cells.
• C) reducing the communication between the center and the surround.
• D) expanding communication to adjacent receptive fields.
• E) blocking bipolar cell transmission to retinal ganglion cells.

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