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| Cataplexy Henneberg Syndrome | Status Cataplexicus | Tonelessness Syndrome | Syndrome, Henneberg | Syndrome, Tonelessness | Syndromes, Tonelessness | Tonelessness Syndromes A condition characterized by transient weakness or paralysis of somatic musculature triggered by an emotional stimulus or physical exertion. Cataplexy is frequently associated with NARCOLEPSY. During a cataleptic attack, there is a marked reduction in muscle tone similar to the normal physiologic hypotonia that accompanies rapid eye movement sleep (SLEEP, REM). (From Adams et al., Principles of Neurology, 6th ed, p396) | |
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