2013 Sensory Physiology

In sensory physiology, adaptation is defined as: Answer

1. the evolution of a receptor that responds to one stimulus modality more than any others.
2. a decrease in the response of a receptor or sensory neuron with time, despite the presence of a stimulus that is unchanging in amplitude.
3. the perception of any stimulus as if it was the adequate stimulus.
4. the difference between sensation and perception.

5. a change in the threshold for a receptor potential that results in an “all-or-none” response.