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Noun

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

startle, jump, start - a sudden involuntary movement; "he awoke with a start"

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References in periodicals archive

Auditory Startle Reaction is disinhibited in idiopathic Restless Legs Syndrome.

Comparisons of Akathisia and Restless Legs Syndrome: An Electrophysiologic Study/Akatizi ve Huzursuz Bacaklar Sendromunun Karsilastirilmasi: Elektrofizyolojik Bir Calisma

Our patients may be categorized as having the major form, which is characterized by exaggerated startle reaction and generalized muscular stiffness starting in the childhood and progressively decreasing as the child grows.

Clinical and electrophysiological findings in two siblings with familial hyperekplexia

If diagnosed correctly, babies can be treated with drugs that help reduce the unwanted startle reaction and also reduce muscle stiffness."

Everday is a fight for life for Jacob

These results demonstrate that the time difference is practically negligible, particularly if you factor in startle reaction and threat recognition.

Empty handed? Is empty-chamber carry a viable option?

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