Whodunnit? Electrophysiological correlates of agency judgements.
Whodunnit? Electrophysiological correlates of agency judgements.
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DOI：
10.1371/journal.pone.0028657
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发表时间：
2011
期刊：
影响因子：
3.7
通讯作者：
Voss M
中科院分区：
文献类型：
--
作者：
Kühn S;Nenchev I;Haggard P;Brass M;Gallinat J;Voss M
能动感是指“我”对那些由自己的自愿行为直接产生的外部事件负责的感觉。最近的理论区分了一个非概念性的“感觉”的机构与自我产生的感觉事件的处理过程中的变化，和一个高阶的判断机构，其中属性的感觉事件的自我。在本研究中，我们探讨了神经相关的判断机构的电生理学手段。我们测量了事件相关电位的音调，被认为或不被认为是由参与者的自愿行动引发的，并将这些电位与后来对音调的机构判断相关。复制早期的预测感觉衰减的研究结果，我们发现，N1组件衰减一致的音调，对应于学习的动作效果映射，而不是不一致的音调，不对应于先前获得的动作和音调之间的关联。P3a成分，而不是N1，直接反映了机构的判断：在这一组成部分的偏转更大的音调判断为自我产生比音调判断为外部产生。基于P3a成分，后来的机构判决结果是可预测的，这一事实表明，机构判决包含了早期信息处理成分，而不是在判决时产生的纯粹的重建性事后评价。
Sense of agency refers to the feeling that “I” am responsible for those external events that are directly produced by one's own voluntary actions. Recent theories distinguish between a non-conceptual “feeling” of agency linked to changes in the processing of self-generated sensory events, and a higher-order judgement of agency, which attributes sensory events to the self. In the current study we explore the neural correlates of the judgement of agency by means of electrophysiology. We measured event-related potentials to tones that were either perceived or not perceived as triggered by participants' voluntary actions and related these potentials to later judgements of agency over the tones. Replicating earlier findings on predictive sensory attenuation, we found that the N1 component was attenuated for congruent tones that corresponded to the learned action-effect mapping as opposed to incongruent tones that did not correspond to the previously acquired associations between actions and tones. The P3a component, but not the N1, directly reflected the judgement of agency: deflections in this component were greater for tones judged as self-generated than for tones judged as externally produced. The fact that the outcome of the later agency judgement was predictable based on the P3a component demonstrates that agency judgements incorporate early information processing components and are not purely reconstructive, post-hoc evaluations generated at time of judgement.
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影响因子：
3.7
作者：
Farrer, Chloee;Frey, Scott H.;Grafton, Scott T.
通讯作者：
Grafton, Scott T.
影响因子：
3.1
作者：
Sperduti, Marco;Delaveau, Pauline;Nadel, Jaqueline
通讯作者：
Nadel, Jaqueline
影响因子：
2.4
作者：
Synofzik, Matthis;Vosgerau, Gottfried;Newen, Albert
通讯作者：
Newen, Albert
影响因子：
3.4
作者：
Sato, A;Yasuda, A
通讯作者：
Yasuda, A
影响因子：
56.9
作者：
WOLPERT, DM;GHAHRAMANI, Z;JORDAN, MI
通讯作者：
JORDAN, MI