Neural dynamics of speech and non-speech motor planning
Neural dynamics of speech and non-speech motor planning
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DOI：
10.1016/j.bandl.2020.104742
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发表时间：
2020-04-01
影响因子：
2.5
通讯作者：
Laganaro, M.
中科院分区：
文献类型：
--
作者：
Lancheros, M.;Jouen, A-L.;Laganaro, M.
由于言语器官也参与产生非言语运动，理解言语和非言语规划是否由相同的大脑机制控制对于理解运动言语规划至关重要。一个关键的问题是，一个专门的运动规划/控制系统是否专用于言语，或者运动规划/控制系统是否在不同的言语行为中共享。我们研究了EEG/ERP的时空动态的运动规划过程之前，通过比较生产的非语音手势匹配单音节词和非词。为了将运动与运动前计划分离，我们使用了延迟生产任务与发音抑制任务相结合。结果表明，规划过程之前的非语音，单词和非单词的发音招募相同的神经网络，但不同的参与非语音和语音。结果支持的想法，共享运动规划/控制系统的语音和非语音，但不同的动态为每个orphanists行为。
As the speech apparatus is also involved in producing non-speech movements, understanding whether speech and non-speech planning are controlled by the same brain mechanisms is central to the comprehension of motor speech planning. A crucial issue is whether a specialized motor planning/control system is dedicated to speech or if the motor planning/control system is shared across oromotor behaviors. We investigated the EEG/ERP spatio-temporal dynamics of the motor planning processes preceding articulation by comparing the production of non-speech gestures matched to monosyllabic words and non-words. To isolate motor from pre-motor planning, we used a delayed production task combined with an articulatory suppression task. Results suggest that the planning processes preceding articulation for non-speech, words and non-words recruit the same neural networks but with different involvement for non-speech and speech. The results support the idea of shared motor planning/control systems for speech and non-speech but with different dynamics for each oromotor behavior.