Selective and divided attention modulates auditory-vocal integration in the processing of pitch feedback errors
Selective and divided attention modulates auditory-vocal integration in the processing of pitch feedback errors
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选择性和分散注意力调节音调反馈错误处理中的听觉-声音整合
DOI：
10.1111/ejn.12949
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发表时间：
2015
影响因子：
3.4
通讯作者：
Liu Hanjun
中科院分区：
文献类型：
--
作者：
Liu Ying;Hu Huijing;Jones Jeffery A.;Guo Zhiqiang;Li Weifeng;Chen Xi;Liu Peng;Liu Hanjun
说话者会迅速调整他们正在进行的声音制作，以补偿他们在听觉反馈中听到的错误。目前还不清楚注意力在这些声音补偿中起什么作用。这项事件相关电位（ERP）研究考察了选择性注意和分散注意对持续发声的听觉反馈中听到的音高错误的声音和皮层反应的影响。在产生一个持续元音的过程中，当参与者积极地关注听觉或视觉事件（选择性注意），或同时关注听觉和视觉事件（分散注意），或不被告知关注任何一种模式（控制条件）时，他们会短暂地听到他们的音高上升了两个半音。行为学结果表明，参与音调扰动比参与视觉刺激引起更大的声音补偿。此外，erp对注意力操纵同样敏感：当参与者参加听觉刺激时，P2对音高扰动的反应比他们参加视觉刺激时更大，也比他们没有被明确告知参加视觉或听觉刺激时更大。相比之下，在听觉和视觉模式之间划分注意力导致P2反应相对于所有其他条件受到抑制，并导致N1反应相对于控制条件得到增强。这些发现为注意对音高反馈错误加工过程中听觉-声音整合机制的影响提供了强有力的证据。此外，选择性注意和分离注意似乎以不同的方式调节音高反馈错误的神经行为加工。
Speakers rapidly adjust their ongoing vocal productions to compensate for errors they hear in their auditory feedback. It is currently unclear what role attention plays in these vocal compensations. This event‐related potential (ERP) study examined the influence of selective and divided attention on the vocal and cortical responses to pitch errors heard in auditory feedback regarding ongoing vocalisations. During the production of a sustained vowel, participants briefly heard their vocal pitch shifted up two semitones while they actively attended to auditory or visual events (selective attention), or both auditory and visual events (divided attention), or were not told to attend to either modality (control condition). The behavioral results showed that attending to the pitch perturbations elicited larger vocal compensations than attending to the visual stimuli. Moreover, ERPs were likewise sensitive to the attentional manipulations: P2 responses to pitch perturbations were larger when participants attended to the auditory stimuli compared to when they attended to the visual stimuli, and compared to when they were not explicitly told to attend to either the visual or auditory stimuli. By contrast, dividing attention between the auditory and visual modalities caused suppressed P2 responses relative to all the other conditions and caused enhanced N1 responses relative to the control condition. These findings provide strong evidence for the influence of attention on the mechanisms underlying the auditory–vocal integration in the processing of pitch feedback errors. In addition, selective attention and divided attention appear to modulate the neurobehavioral processing of pitch feedback errors in different ways.