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皮质贡献的注意调节,以频率后的响应引起的连续演讲

Alina Schüller¹, Achim Schilling², Patrick Krauss^2,3

¹Department Artificial Intelligence in Biomedical Engineering, Friedrich-Alexander-University Erlangen-Nürnberg, 91054 Erlangen, Germany.

The Journal of neuroscience : the official journal of the Society for Neuroscience

|October 4, 2023

概括

选择性注意力增强了听觉皮层中语音基本频率 (语音-FFR) 的神经跟踪. 这种语音-FFR的注意调制超越了皮质下活动,在杂的环境中改善了语音理解.

科学领域:

神经科学是一个神经科学.
听觉感知是一种听觉感知.
认知科学认知科学

背景情况:

选择性注意力对于在杂的环境中理解语音至关重要.
语音节奏的神经跟踪,特别是基本频率 (语音-FFR),涉及到听觉处理.
以前的研究表明,通过注意力来调节语音FFR的皮质下调节,但皮质贡献仍然不清楚.

研究的目的:

为了研究皮质贡献的注意力调节对语音频率随访响应 (语音-FFR).
为了确定选择性注意力是否影响听觉皮层内语音基本频率的神经跟踪.

主要方法:

使用磁脑电图 (MEG) 来记录大脑活动.
参与者 (男性和女性) 呈现了两个相互竞争的语音信号.
在扬声器之间的注意力切换期间,分析了皮层反应.

主要成果:

观察到皮质对语音FFR贡献的强有力的注意力调制.
当演讲者参加演讲时,神经反应明显高于当演讲者被忽视时.
低基本频率的声音引起了更大的皮质语音-FFR贡献,无论注意力如何.

结论:

语音FFR的注意调制延伸到听觉皮层,而不仅仅是皮层下区域.
选择性注意力增强了语音基本频率的皮质跟踪.
这些发现有助于理解复杂的听觉场景中语音理解背后的神经机制.

关键词:

皮层反应的皮质反应选择性注意力选择性注意力语音处理语音处理演讲-FFRR 在线播放

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