非随意性情绪表达障碍(involuntary emotional expressiondisorder,IEED)是指无法随意控制的哭和(或)笑现象[1].临床上有许多相近的术语用来描述这一临床现象或综合征,如:情绪不稳(affective lability/emotional lability)、易动情绪(emotionalism)、情绪失控(emotional dyscontrol)、情绪失禁(emotional incontinence)、 过度情绪化 (excessive emotionality)、强哭强笑(forced laughter or crying)、不恰当欢喜(inappropriate hilarity)、病理性情绪(pathological affect)、病理性易动情绪(pathological emotionalism)、病理性哭笑(pathological laughing and crying,PLC)、假性延髓情绪(pseudobulbar affect,PBA)、假性延髓哭泣(pseudobulbar crying)等.