Lécuyer R
Ann Med Psychol (Paris). 1995 Dec;153(10):721-5.
Para psychotic troubles in Mentally Handicapped Persons (particularly in Down syndrome)-Clinical examples of M.H.P. which had no trouble until their 25-40 (years) except their intellectual defect and then, slide in psychiatric or para psychiatric behaviour. It starts with loosing vital aim and long lasting soliloquy. Then starting with an emotional frustration. Special reflexion about pseudo intellectual deterioration considered as, almost Alzheimer which is often a kind of familial contage of loosing vital impulse. It seems obvious for M.H.P. that realising their handicap without being prepared nor psychologically accompanied lead a possible trigger for loosing psychological control. Sports or leisure activities with other M.H.P. are most inefficient but a prevention often appears possible.
智力障碍者（尤其是唐氏综合征患者）的类精神病性问题——智力障碍者直到25至40岁时除智力缺陷外并无其他问题，随后出现精神或类精神行为下滑的临床实例。它始于失去生活目标和长时间的自言自语。接着是情绪受挫。对被视为几乎是阿尔茨海默病的假性智力衰退的特殊思考，这往往是一种失去生活冲动的家族性传染。对智力障碍者来说，在没有准备且没有心理陪伴的情况下意识到自己的缺陷似乎很可能引发心理控制的丧失。与其他智力障碍者一起进行体育或休闲活动效果甚微，但预防往往是可能的。
