Selective suppression of self-initiated sounds in an auditory stream: An ERP study
Selective suppression of self-initiated sounds in an auditory stream: An ERP study
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DOI：
10.1111/j.1469-8986.2011.01196.x
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发表时间：
2011-09-01
期刊：
影响因子：
3.7
通讯作者：
Schroeger, Erich
中科院分区：
文献类型：
--
作者：
Baess, Pamela;Horvath, Janos;Schroeger, Erich
许多研究表明，当自我启动声音引起N1事件相关电位（ERP）反应时，它会被衰减。这种N1抑制效应通常被解释为反映了一种内部预测机制，这种机制能够区分我们自己的行为和他人的行为的感官后果。先导研究中使用的区组设计（即，自我和外部发起的声音呈现在不同的块）严重限制了这些发现的相关性，因为N1效应可以简单地用上下文任务差异来解释。在本研究中，自我和外部发起的声音混合在块内。发现N1抑制，其幅度甚至大于在传统阻断条件下观察到的抑制。这一结果支持了参与的内部预测机制在歧视的感官后果，一个人的自己的行动和其他人。
Numerous studies have shown that the N1 event-related potential (ERP) response is attenuated when it is elicited by self-initiated sounds. This N1 suppression effect is generally interpreted to reflect an internal prediction mechanism, which enables the discrimination of the sensory consequences of our own actions and those of others. The blocked design used in the forerunner studies (i.e., self- and externally initiated sounds presented in different blocks) seriously limits the relevance of these findings, because the N1 effect can simply be explained by contextual task differences. In the present study, self-and externally initiated sounds were mixed within blocks. N1 suppression was found, and its magnitude was even larger than that observed in a traditional blocked condition. This result supports the involvement of an internal prediction mechanism in the discrimination of the sensory consequences of one's own actions and those of others.