Believing and perceiving: authorship belief modulates sensory attenuation.
Believing and perceiving: authorship belief modulates sensory attenuation.
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DOI：
10.1371/journal.pone.0037959
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发表时间：
2012
期刊：
影响因子：
3.7
通讯作者：
Waszak F
中科院分区：
文献类型：
--
作者：
Desantis A;Weiss C;Schütz-Bosbach S;Waszak F
感觉衰减是指观察到与外部产生的相同刺激相比，自身产生的刺激在现象学和皮质反应方面都减弱了。因此，人们认为感觉衰减可能有助于个体确定感觉事件是否是由他们自己引起的。在本研究中，我们研究了这种依赖性是否是相互的，即感觉衰减是否受到先前对作者身份的信念的调节。参与者必须判断他们认为是自发产生或由他人触发的听觉效果的响度。然而，实际上，声音总是由参与者的动作触发的。与相信声音是由另一个人发出时相比，当参与者相信声音是自己发出的时，他们感觉到的音调响度减弱了。感觉衰减被认为有助于人们相信作者身份的出现。我们的结果表明，感觉衰减也是先前对环境中的行为与感觉变化之间因果关系的信念的结果。
Sensory attenuation refers to the observation that self-generated stimuli are attenuated, both in terms of their phenomenology and their cortical response compared to the same stimuli when generated externally. Accordingly, it has been assumed that sensory attenuation might help individuals to determine whether a sensory event was caused by themselves or not. In the present study, we investigated whether this dependency is reciprocal, namely whether sensory attenuation is modulated by prior beliefs of authorship. Participants had to judge the loudness of auditory effects that they believed were either self-generated or triggered by another person. However, in reality, the sounds were always triggered by the participants' actions. Participants perceived the tones' loudness attenuated when they believed that the sounds were self-generated compared to when they believed that they were generated by another person. Sensory attenuation is considered to contribute to the emergence of people's belief of authorship. Our results suggest that sensory attenuation is also a consequence of prior belief about the causal link between an action and a sensory change in the environment.
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