lihaskonna toonuse järsk lõtvumine, enamasti tugeva afekti v mingi ootamatu ärriti toimel, (sageli narkolepsiaga kaasnev) emotsioonaalse reaktsiooniga (hirm, rõõm) kaasnev, sekundite vältel äkki kaduv lihaspinge mõnedes lihasrühmades, ilma teadvusehäireteta, haigustunnuseks on nt. paigale t, (an episode) of sudden bilateral loss of muscle tone resulting in the individual collapsing, often occurring in association with intense emotions ..., a condition, often associated with narcolepsy; marked by abrupt attacks of muscular weakness and hypotonia triggered by an emotional stimulus, such as mirth, anger, or fear