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xue yang shui ping yi lai gong neng ci gong zhen cheng xiang zai jing jue gong neng zhong de yan jiu jin zhan
Author(s): 
Pages: 150-152
Year: Issue:  1
Journal: The Journal of Practical Medicine

Keyword: 
Abstract: 作为注意功能重要组分之一的警觉,是维持认知功能的基础.自1990年Posner首次提出注意网络由警觉、定向和执行控制3个功能子网络组成以来,注意网络的研究已逐渐深入至其子网络.根据目标刺激出现前有无暗示信号的提示,警觉可以细分为位相性警觉(phasic alertness)和固有警觉(intrinsic alertness)[1].前者是短暂提高的准备就绪的能力,而后者是一般的觉醒状态.
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