Phasic receptors

Definition

Sensory receptors that respond to a stimulus only when there is a change in the stimulus's intensity or presence. They are characterized by their rapid response to stimuli and subsequent adaptation.

Etymology

Example

Phasic receptors in insect antennae detect changes in wind currents, allowing them to navigate flight paths.

Related Terms

• Sensory receptors
• Adaptation
• Stimulus

Usage Notes

Phasic receptors are often found in sensory systems that require rapid response times and sensitivity to change.