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Beta and Gamma Rhythms in Human Auditory Cortex during Musical Beat Processing

机译:在乐搏击败过程中,β和伽马节奏在人类听觉皮层中

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We examined β- (~20 Hz) and γ- (~40 Hz) band activity in auditory cortices by means of rnagnetoencephalography (MEG) during passive listening to a regular musical beat with occasional omission of single tones. The activity decreased after each tone, followed by an increase, thus forming a periodic modulation synchronized with the stimulus. The β decrease was absent after omissions. In contrast, y-band activity showed a peak after tone and omission, suggesting underlying endogenous anticipatory processes. We propose that auditory β and γoscillations have different roles in musical beat encoding and auditory—motor interaction.
机译:通过在被动倾听到常规音乐节拍期间,通过Rnagnececlecthe(MEG)检查了听觉皮质中的β-(〜20Hz)和γ-(〜40 Hz)频段活动,临时音乐节拍,偶尔会省略单个音调。每种色调后,活动降低,然后增加,从而形成与刺激同步的周期性调制。在遗漏后不存在β降低。相比之下,Y频段活动在音调和遗漏后显示出峰,暗示潜在的内源性预期过程。我们提出了听觉β和γ振动在音乐节拍编码和听觉电动机相互作用中具有不同的作用。

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