The phenomenon of adaptation refers to
A) the constantly changing sensitivity of photoreceptors to light in order to match illumination levels.
B) the capacity of many photoreceptor cells to send signals to a single cell.
C) the sensitization of photoreceptors to light levels that are constant.
D) increases in the number of rods in response to increased length of time in darkness.

Question

Quizplus · Accepted Answer

Adaptation refers to the process by which the sensitivity of sensory receptors changes in response to changes in the environment. In the case of vision, this means that the sensitivity of photoreceptor cells in the retina changes to match the level of illumination in the environment. This allows the visual system to maintain a consistent level of responsiveness despite variations in lighting conditions.

The Phenomenon of Adaptation Refers to