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Human Body & Health

If a retinal ganglion cell's receptive field center receives intense light while the surround receives moderate light, which consequence follows?

A)Decreased glutamate release universally occurs
B)Increased action potential firing globally results
C)Hyperpolarization of bipolar cells ensues
D)Lateral inhibition sharpens contrast perception

💡 Explanation

Lateral inhibition explains contrast enhancement in vision because stimulated neurons inhibit their neighbors via horizontal cells, sharpening the signal. Therefore, the intense center inhibits the surround’s signal, creating a strong contrast, rather than causing uniform glutamate changes or bipolar cell hyperpolarization.

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