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Action-related auditory ERP attenuation: Paradigms and hypotheses

机译：行动相关的听觉ERP衰减：范式和假设

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A number studies have shown that the auditory Ni event-related potential (ERP) is attenuated when elicited by self-induced or self-generated sounds. Because Ni is a correlate of auditory feature- and event-detection, it was generally assumed that N1-attenuation reflected the cancellation of auditory re-afference, enabled by the internal forward modeling of the predictable sensory consequences of the given action. Focusing on paradigms utilizing non-speech actions, the present review summarizes recent progress on action-related auditory attenuation. Following a critical analysis of the most widely used, contingent paradigm, two further hypotheses on the possible causes of action-related auditory ERP attenuation are presented. The attention hypotheses suggest that auditory ERP attenuation is brought about by a temporary division of attention between the action and the auditory stimulation. The pre-activation hypothesis suggests that the attenuation is caused by the activation of a sensory template during the initiation of the action, which interferes with the incoming stimulation. Although each hypothesis can account for a number of findings, none of them can accommodate the whole spectrum of results. It is suggested that a better understanding of auditory ERP attenuation phenomena could be achieved by systematic investigations of the types of actions, the degree of action-effect contingency, and the temporal characteristics of action-effect contingency representation-buildup and -deactivation.
机译：大量研究表明，由自感或自生声音引起的听觉镍事件相关电位（ERP）减弱。因为Ni是听觉特征和事件检测的相关因素，所以通常假定N1衰减反映了听觉重传的取消，这是通过对给定动作的可预测感觉结果进行内部正向建模而实现的。着眼于利用非语音动作的范例，本综述总结了与动作有关的听觉衰减的最新进展。在对最广泛使用的或有范例进行了批判性分析之后，提出了关于动作相关听觉ERP衰减的可能原因的另外两个假设。注意假设表明，听觉ERP衰减是由动作和听觉刺激之间的暂时注意力分散引起的。激活前的假设表明，衰减是由于在动作开始期间感觉模板的激活引起的，这会干扰传入的刺激。尽管每种假设都可以解释许多发现，但是它们都不能容纳整个结果范围。建议通过系统地研究动作类型，动作效果偶然性的程度以及动作效果偶然性表示建立和失活的时间特征，可以更好地理解听觉ERP衰减现象。

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