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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >An accumulator model for spontaneous neural activity prior to self-initiated movement
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An accumulator model for spontaneous neural activity prior to self-initiated movement

机译:自发运动之前自发神经活动的累加器模型

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摘要

The term bereitschaftspotential or "readiness potential" (RP) refers to a slow 1- to 2-s buildup of scalp electrical potential that reliably precedes self-initiated movements, in the average over many data epochs time locked to movement onset. Discovered in 1965 by Kornhuber and Deecke (1), the RP has since been linked to changes in neuronal firing rates in the supplementary motor area (2) and is widely assumed to reflect an intentional sequence of neural operations directed at producing a movement (1). This assumption has become a source of controversy because human subjects appear to be unaware of their intention until only ~200 ms before the onset of the movement (3).
机译:术语bereitschaftspotential或“就绪电位”(RP)指的是头皮电位的1到2 s缓慢积累,该电位可靠地发生在自发运动之前,平均在锁定到运动开始的许多数据时期内。 RP由Kornhuber和Deecke于1965年发现(1),此后一直与辅助运动区神经元放电速率的变化有关(2),并被广泛认为反映了旨在产生运动的神经操作的有意顺序(1)。 )。这种假设已成为争议的源头,因为人类受试者直到运动开始前约200 ms才意识到自己的意图(3)。

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    Cognitive Neuroimaging Unit, Institut National de la Santi et de la Recherche Medicate (INSERM), Gifsur Yvette 91191, France,Direction des Sciences du Vivant, 12BM, NeuroSpin Center, Commissariat a I'Energie Atomique, Gifsur Yvette 91191, France;

    Cognitive Neuroimaging Unit, Institut National de la Santi et de la Recherche Medicate (INSERM), Gifsur Yvette 91191, France,Direction des Sciences du Vivant, 12BM, NeuroSpin Center, Commissariat a I'Energie Atomique, Gifsur Yvette 91191, France,University Paris 6, Faculti de Me'decine Pitie Salpitriere, 75005 Paris, France,Unite' Mixte de Recherche S 975, INSERM, Institut du Cerveau et de la Moelle Epinitre (ICM) Research Center, 75013 Paris, France;

    Cognitive Neuroimaging Unit, Institut National de la Santi et de la Recherche Medicate (INSERM), Gifsur Yvette 91191, France,Direction des Sciences du Vivant, 12BM, NeuroSpin Center, Commissariat a I'Energie Atomique, Gifsur Yvette 91191, France,Universiti Paris-Sud 11, 91405 Orsay, France,College de France, 75005 Paris, France;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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