Neural correlates of sign language production revealed by electrocorticography.
Neural correlates of sign language production revealed by electrocorticography.
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DOI：
10.1212/wnl.0000000000010639
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发表时间：
2020-11-24
期刊：
影响因子：
9.9
通讯作者：
Flinker A
中科院分区：
文献类型：
--
作者：
Shum J;Fanda L;Dugan P;Doyle WK;Devinsky O;Flinker A
手语产生背后的时空动态组合在很大程度上仍然是未知的。为了研究这些动态相比，语音生产，我们使用颅内皮层电图在电池的语言任务。我们报告了一个独特的情况下，直接皮层表面录音从一个神经外科病人的听力完整的双语英语和美国手语。我们设计了一组认知任务来捕捉语言处理和产生的多种形式。我们确定了2个空间上不同的皮层网络：腹侧用于语音，背侧用于信号产生。符号生产招聘perirolandic，顶叶，后颞区，而语音生产招聘额叶，perisylvian，perirolandic地区。电皮层刺激证实了这种空间隔离，确定口部地区的语音生产和肢体地区的标志生产。时间动态显示上级顶叶皮层活动之前，立即签署生产，这表明其在规划和生产手语的作用。我们的研究结果揭示了一个独特的网络手语和详细的时间传播支持标志的生产。
The combined spatiotemporal dynamics underlying sign language production remain largely unknown. To investigate these dynamics compared to speech production, we used intracranial electrocorticography during a battery of language tasks. We report a unique case of direct cortical surface recordings obtained from a neurosurgical patient with intact hearing who is bilingual in English and American Sign Language. We designed a battery of cognitive tasks to capture multiple modalities of language processing and production. We identified 2 spatially distinct cortical networks: ventral for speech and dorsal for sign production. Sign production recruited perirolandic, parietal, and posterior temporal regions, while speech production recruited frontal, perisylvian, and perirolandic regions. Electrical cortical stimulation confirmed this spatial segregation, identifying mouth areas for speech production and limb areas for sign production. The temporal dynamics revealed superior parietal cortex activity immediately before sign production, suggesting its role in planning and producing sign language. Our findings reveal a distinct network for sign language and detail the temporal propagation supporting sign production.
在开始的第二语言学习者中，口语，书面和签名文字处理的神经阶段。
影响因子：
2.9
作者：
Leonard MK;Ferjan Ramirez N;Torres C;Hatrak M;Mayberry RI;Halgren E
通讯作者：
Halgren E