Awareness of action in schizophrenia
Awareness of action in schizophrenia
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DOI：
10.1097/01.wnr.0000073684.00308.c0
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发表时间：
2003-05-23
期刊：
影响因子：
1.7
通讯作者：
Franck, N
中科院分区：
文献类型：
--
作者：
Haggard, P;Martin, F;Franck, N
不正常的代理感是精神分裂症最具特征但又令人困惑的阳性症状之一。精神分裂症患者可能会将自己行为的后果归因于他人的意图(影响力妄想)，或者可能认为自己造成了实际上无法控制的事件(自大狂)。以前的报告经常描述精神分裂症患者不准确的机构判断，但没有确定这些判断背后的紊乱神经机制或心理过程。我们报告了8名精神分裂症患者和匹配的对照组的自愿行动的感知时间及其后果。患者在行动和后果之间表现出不同寻常的强烈绑定效应。具体地说，患者的行动和结果之间的时间间隔似乎比对照组短。患者可能会过度地将他们的行为与后续事件联系在一起，认为他们的行为具有不同寻常的因果效应。代理障碍可能反映了自愿行动经验中的一种潜在异常。
An abnormal sense of agency is among the most characteristic yet perplexing positive symptoms of schizophrenia. Schizophrenics may either attribute the consequences of their own actions to the intentions of others (delusions of influence), or may perceive themselves as causing events which they do not in fact control (megalomania). Previous reports have often described inaccurate agency judgements in schizophrenia, but have not identified the disordered neural mechanisms or psychological processes underlying these judgements. We report the perceived time of a voluntary action and its consequence in eight schizophrenic patients and matched controls. The patients showed an unusually strong binding effect between actions and consequences. Specifically, the temporal interval between action and consequence appeared shorter for patients than for controls. Patients may overassociate their actions with subsequent events, experiencing their actions as having unusual causal efficacy. Disorders of agency may reflect an underlying abnormality in the experience of voluntary action.