startle response

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Definitions from WordNet

Noun startle response has 1 sense

startle response, startle reaction - 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
--₁ is a kind of startle, jump, start

Definitions from the Web

Startle Response

Description

The startle response refers to the immediate, involuntary reaction to a sudden and unexpected stimulus, typically eliciting a brief jump or a startled reaction in humans and animals. It is a defensive reflex that prepares the body for a fight-or-flight response.

Sample Sentences

When the fire alarm suddenly went off, the startle response caused everyone in the room to jump in surprise.
The loud thunderclap triggered a startle response in the frightened dog, causing it to hide under the bed.
During the scary movie, the suspenseful scenes resulted in a startle response among the audience, causing screams and gasps.

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