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Tracing language evolution in the human brain

机译:追踪人脑中的语言进化

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摘要

The physiological basis of asymmetrical language processing in the human brain remains under debate, with competing theories pointing to auditory asymmetry and hand preference as its functional origin. To determine which brain regions demonstrate intrinsic asymmetry at speech-specific neural frequencies, Benjamin Moril-lon et al. (pp. 18688-18693) used simultaneous EEG and fMRI to monitor brain activity in 16 human study participants while the participants rested or watched a video. Brain areas associated with syllabic hearing, basic sensory processing, and mouth and hand movements demonstrated activity patterns characteristic of left-brain dominated speech, both during the video and at rest.
机译:人脑中不对称语言处理的生理基础仍在争论中,相互竞争的理论指出听觉不对称和手偏爱是其功能起源。为了确定哪些大脑区域在特定于语音的神经频率上表现出内在的不对称性,Benjamin Moril-lon等(pp。18688-18693)在参与者休息或观看视频的同时,使用了同时进行的EEG和fMRI监测了16名人类研究参与者的大脑活动。与音节听力,基本感觉处理以及嘴巴和手部运动相关的大脑区域在视频期间和静止时均表现出左脑主导语音的活动模式特征。

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