McCullagh S, Feinstein A
University of Toronto, Sunnybrook Hospital Site, Ontario, Canada.
J Neuropsychiatry Clin Neurosci. 2000 Winter;12(1):100-2. doi: 10.1176/jnp.12.1.100.
Pathological laughing and crying (PLC) is increasingly recognized to accompany diverse neurologic conditions, although it remains poorly understood. The authors describe 3 cases of amyotrophic lateral sclerosis (ALS) with an unusual change from a predominance of pathological crying to laughter following drug treatment. Possible explanations for this phenomenon are discussed.
病理性哭笑（PLC）越来越被认为与多种神经系统疾病有关，尽管对此仍知之甚少。作者描述了3例肌萎缩侧索硬化症（ALS）患者，在药物治疗后出现了一种不寻常的变化，即从以病理性哭为主转变为病理性笑。本文讨论了这一现象的可能解释。
