The startle response is a sudden, reflex-like response to an unexpected stimulus, such as a loud noise or bright light. It is an unlearned and largely unconscious defense mechanism shared by animals ...
The acoustic startle response is an unconditional reflex manifested as a rapid contraction of facial and skeletal muscles in response to a sudden and intense startling stimulus. Translational research ...
As anyone who has ever been startled—and who hasn’t?—knows, the startle response is involuntary. Indeed, it appears to be hard-wired early in development, and to reflect fundamental factors in brain ...
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