Which photoreceptors show greater temporal summation?

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Multiple Choice

Which photoreceptors show greater temporal summation?

Explanation:
Temporal summation is how photoreceptors integrate light over time. Rods have slower response kinetics and a longer recovery, so their signals are pooled over a longer time window. This makes them more sensitive to dim or slowly changing light, but it also means they blur rapid changes in illumination. Cones, on the other hand, respond and recover quickly, providing high temporal resolution with a shorter integration window, so they exhibit less temporal summation. Because of this slower, more prolonged integration, rods show greater temporal summation.

Temporal summation is how photoreceptors integrate light over time. Rods have slower response kinetics and a longer recovery, so their signals are pooled over a longer time window. This makes them more sensitive to dim or slowly changing light, but it also means they blur rapid changes in illumination. Cones, on the other hand, respond and recover quickly, providing high temporal resolution with a shorter integration window, so they exhibit less temporal summation. Because of this slower, more prolonged integration, rods show greater temporal summation.

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