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 ...

The acoustic startle response is an unconditional reflex involving rapid facial and skeletal muscle movements triggered by sudden, startling stimuli like sound or light. Studying the acoustic startle ...

Sensorimotor gating is a fundamental neurophysiological mechanism by which the brain filters out irrelevant sensory information, thereby safeguarding cognitive stability and preventing sensory ...

A study in fruit flies has identified serotonin as a chemical that triggers the body's startle response, the automatic deer-in-the-headlights reflex that freezes the body momentarily in response to a ...

We all jump at an unexpected noise or touch, but in some people, this startle response is exaggerated, and can cause falls and even death. Subscribe to read this story ad-free Get unlimited access to ...

ATLANTA -- It sounds like a scene from a scary movie: a research scientist strapped me into a dentist-like chair, plugged my finger into a heart rate monitor and called the whole thing "The Fear ...

Variations in a gene that regulates the brain chemical dopamine may help explain why some people are more prone to anxiety than others, a new study suggests. Subscribe to read this story ad-free Get ...

You body is performs miracles you're not even aware of. Beneath the surface of your conscious actions lie a network of powerful, involuntary reflexes. These quick responses are hardwired by evolution ...