Definitions

1. noun

A sudden, involuntary loss of muscle tone, often triggered by emotional stimuli, resulting in a brief loss of muscle control and a temporary collapse or sagging of the body.

“After a traumatic event, she experienced a rare case of kataplexy and collapsed in shock.”

2. noun

A sudden, brief episode of loss of muscle tone, often manifesting as a physical collapse or sagging of the body, often triggered by emotional stimuli or stress.

“The patient’s doctor noted that he had experienced a kataplexy attack when he was asked to give a speech in front of a large audience.”