Startle Response (Noun)
Meaning
A complicated involuntary reaction to a sudden unexpected stimulus (especially a loud noise); involves flexion of most skeletal muscles and a variety of visceral reactions.
Classification
Nouns denoting acts or actions.
Examples
- The startle response is a natural defense mechanism that occurs when an individual is suddenly exposed to a loud noise or unexpected stimulus.
- During the experiment, the researchers measured the startle response of the participants by monitoring their muscle activity and heart rate.
- The startle response is often seen in people with anxiety disorders, who may exhibit an exaggerated response to sudden or unexpected stimuli.
- The startle response is characterized by a rapid heartbeat, increased blood pressure, and a sudden tensing of the muscles, preparing the body for the "fight or flight" response.
- The loud crash of thunder triggered a startle response in the child, causing her to jump out of her seat and cling to her mother in fear.