Illusion of sense of self-agency: discrepancy between the predicted and actual sensory consequences of actions modulates the sense of self-agency, but not the sense of self-ownership
Illusion of sense of self-agency: discrepancy between the predicted and actual sensory consequences of actions modulates the sense of self-agency, but not the sense of self-ownership
复制标题
DOI：
10.1016/j.cognition.2004.04.003
复制
发表时间：
2005-01-01
期刊：
影响因子：
3.4
通讯作者：
Yasuda, A
中科院分区：
文献类型：
--
作者：
Sato, A;Yasuda, A
有人提出，运动指令的知识是用来区分自我产生的感觉和外部产生的感觉。在本文中，我们证明了自我代理感，即我是产生行动的人的感觉，在很大程度上取决于预测和实际感官反馈之间比较所产生的差异程度。在实验1中，当声调的呈现在时间和频率上不可预测时，自我能动性的感觉就会降低，尽管实际上声调是自己产生的。在实验2中，情况正好相反。也就是说，当外部产生的感觉恰好与正向模型的预测相匹配时，参与者会体验到自我能动性的幻觉。在实验3中，无论行为的预期结果和实际结果是否存在差异，当预期结果和实际结果之间存在差异时，自我代理感都会降低。在所有的实验中，预测反馈和实际反馈之间的差异对自我拥有感没有影响，自我拥有感是指我是正在经历某种体验的人的感觉。这些结果可能表明，这两种自我感觉是相互独立的。(C) 2004 Elsevier B.V.版权所有
It is proposed that knowledge of motor commands is used to distinguish self-generated sensation from externally generated sensation. In this paper, we show that the sense of self-agency, that is the sense that I am the one who is generating an action, largely depends on the degree of discrepancy resulting from comparison between the predicted and actual sensory feedback. In Experiment 1, the sense of self-agency was reduced when the presentation of the tone was unpredictable in terms of timing and its frequency, although in fact the tone was self-produced. In Experiment 2, the opposite case was found to occur. That is, participants experienced illusionary sense of self-agency when the externally generated sensations happened to match the prediction made by forward model. In Experiment 3, the sense of self-agency was reduced when there was a discrepancy between the predicted and actual sensory consequences, regardless of presence or absence of a discrepancy between the intended and actual consequences of actions. In all the experiments, a discrepancy between the predicted and actual feedback had no effects on sense of self-ownership, that is the sense that I am the one who is undergoing an experience. These results may suggest that both senses of self are mutually independent. (C) 2004 Elsevier B.V. All rights reserved.