A sudden, dramatic decrement in muscle tone and loss of deep reflexes leading to muscle weakness, paralysis, or postural collapse: usually precipitated by an outburst of emotional expression-notably laughter, startle, or sudden physical exercise; one of the tetrad of symptoms of narcolepsy. During cataplexy, respiration is not compromised.
sudden loss of muscular strength without loss of consciousness. Can be triggered by anger or excitement.
a muscle weakness or paralysis. It is a symptom of Narcolepsy. It is often triggered by strong emotion.
sudden, dramatic decrement in muscle tone and loss of deep reflexes that leads to muscle weakness, paralysis, or postural collapse. Usually caused by outburst of emotion: laughter, startle, or sudden physical exercise; one of the tetrad of symptoms of narcolepsy.
cat-uh'plex-ee] A sudden spell of weakness due to a decrease in muscle tone triggered by external or internal stimuli, i.e., emotion such as laughter, anger, surprise, joy, fright, intense concentration, and athletic activities. The patient may stagger briefly and then fall to the ground, unable to move yet fully alert. Episode may last a minute or more and the patient may enter REM sleep. Term: Definition: .
a temporary decrease or complete loss of muscle control triggered by an emotional response that is often seen in narcoleptics. Also, a sudden, dramatic drop in muscle tone and loss of deep reflexes, which leads to muscle weakness or paralysis (an attack may cause a person to collapse). It is usually triggered by an emotional stimulus such as laughing or being startled, or by some sudden physical exertion. Cataplexy is a symptom of narcolepsy, a neurologic disorder that causes excessive sleepiness.
sudden muscle weakness associated with narcolepsy. It is often triggered by emotions such as anger, surprise, laughter, and exhilaration. No loss of consciousness is involved – i.e. it is not a black out or a faint, and, despite the phonetic similarity of 'narcolepsy' and 'cataplexy' with 'epilepsy', not epileptic in nature. You are fully conscious, you just can't move.
A debilitating medical condition in which a person suddenly feels weak and collapses at moments of strong emotion such as laughter, anger, fear or surprise. In so collapsing, people with cataplexy may injure themselves. See the entire definition of Cataplexy
An abrupt, total loss of muscle control spurred by an emotional event. Cataplexy frequently occurs along with narcolepsy.
A sudden decrement in muscle tone and loss of deep tendon reflexes leading to muscle weakness, paralysis, or postural collapse. Cataplexy usually is precipitated by an outburst of emotional expression-notably laughter, anger, or startle. One of the tetrad of symptoms of narcolepsy. During cataplexy, respiration and voluntary eye movements are not compromised.
abrupt loss of muscle tone leading to the patient's falling to the floor; a frequent accompaniment to narcolepsy.
A symptom characterized by the sudden loss of postural tone, often resulting in the individual falling to the floor. Cataplexy is often part of the narcolepsy complex.
a symptom of narcolepsy, where without warning there is sudden paralysis of the muscles, usually causing the person to fall to the ground.This often occurs at a time of high emotion.
literally means “to strike down.” It is a sudden episode of bilateral skeletal muscle weakness triggered by intense emotions. Laughter is the most common triggering emotion, but anger, grief, fear, embarrassment, excitement, and sexual arousal can also trigger an attack of cataplexy. Cataplexy is the second most common and specific symptom of narcolepsy, a neurology disorder that causes excessive sleepiness.
(cat-ar-plex-ee) Sudden loss of muscle power, with collapse on to the ground, but no loss of consciousness. A feature of narcolepsy that occurs particularly during moments of excitement or anticipation.
Cataplexy is the sudden muscle weakness associated with narcolepsy. It is a temporary decrease or complete loss of muscle control triggered by an emotional response that is often seen in narcoleptics. It is often triggered by emotional stimulus such as anger, surprise, laughter, and exhilaration. Cataplexy is a symptom of narcolepsy, a neurologic disorder that causes excessive sleepiness.
An abrupt temporary loss of voluntary muscular function and tone, sometimes evoked by an emotional stimulus such as laughter, pleasure, anger, or excitement.
Sudden loss of muscle tone.
Cataplexy is a medical condition which often affects people who have narcolepsy, a disorder whose principal signs are EDS (Excessive Daytime Sleepiness), sleep attacks, and disturbed nighttime sleep.