Neural mechanisms for selectively tuning in to the target speaker in a naturalistic noisy situation.
Neural mechanisms for selectively tuning in to the target speaker in a naturalistic noisy situation.
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DOI：
10.1038/s41467-018-04819-z
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发表时间：
2018-06-19
影响因子：
16.6
通讯作者：
Lu C
中科院分区：
文献类型：
--
作者：
Dai B;Chen C;Long Y;Zheng L;Zhao H;Bai X;Liu W;Zhang Y;Liu L;Guo T;Ding G;Lu C
在多说话者情况下（即，鸡尾酒会效应）仍然难以捉摸。在这里，我们通过同时测量一个听众和多个演讲者在参与自然主义对话时的大脑活动来解决这个问题。结果一致表明，选择性增强的人际神经同步（INS）之间的听者和参加的扬声器在左颞顶交界处，与听者和无人值守的扬声器之间的不同多扬声器的情况下。此外，INS在言语反应发生之前显著增加，甚至当听者的大脑活动先于说话者的大脑活动时也是如此。INS的增加与解剖位置和频率范围内的脑-语同步无关。这些研究结果表明，INS的基础上的选择过程中，在多扬声器的情况下，通过神经预测的内容水平，而不是感官水平的讲话。当很多人都在讲话时，例如在一个聚会上，我们可以选择性地只听一个人讲话。在这里，使用“超扫描”，作者表明，人际神经同步选择性地增加之间的听众和出席扬声器，相比，听众和一个无人值守的扬声器。
The neural mechanism for selectively tuning in to a target speaker while tuning out the others in a multi-speaker situation (i.e., the cocktail-party effect) remains elusive. Here we addressed this issue by measuring brain activity simultaneously from a listener and from multiple speakers while they were involved in naturalistic conversations. Results consistently show selectively enhanced interpersonal neural synchronization (INS) between the listener and the attended speaker at left temporal–parietal junction, compared with that between the listener and the unattended speaker across different multi-speaker situations. Moreover, INS increases significantly prior to the occurrence of verbal responses, and even when the listener’s brain activity precedes that of the speaker. The INS increase is independent of brain-to-speech synchronization in both the anatomical location and frequency range. These findings suggest that INS underlies the selective process in a multi-speaker situation through neural predictions at the content level but not the sensory level of speech. When many people are speaking, e.g. at a party, we can selectively attend to just one speaker. Here, using ‘hyperscanning’, the authors show that interpersonal neural synchronization is selectively increased between a listener and the attended speaker, compared to between the listener and an unattended speaker.
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影响因子：
25
作者：
通讯作者：
--
DOI：
10.1523/jneurosci.5297-12.2013
发表时间：
2013-03-27
期刊：
The Journal of neuroscience : the official journal of the Society for Neuroscience
影响因子：
--
作者：
Ding N;Simon JZ
通讯作者：
Simon JZ
影响因子：
5.3
作者：
Jiang, Jing;Dai, Bohan;Lu, Chunming
通讯作者：
Lu, Chunming
影响因子：
9.8
作者：
Auksztulewicz R;Friston KJ;Nobre AC
通讯作者：
Nobre AC
影响因子：
2.4
作者：
CHERRY, EC
通讯作者：
CHERRY, EC