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36小时睡眠剥夺对青年军人视觉-运动联结机制的影响 被引量:2
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作者 吴兴曲 陈玖 +4 位作者 杨来启 贾婷 吴银霞 马文涛 张彦 《中国医学科学院学报》 CAS CSCD 北大核心 2013年第4期439-443,共5页
目的探讨36h睡眠剥夺(SD)对青年军人视觉-运动联结机制的影响。方法 10名健康青年军人在36h睡眠剥夺条件下,分别在SD前后进行视觉空间旋转任务的事件相关电位测定。测量P500的平均潜伏期、波幅及其错误数和反应时。结果与SD0h相比,SD36... 目的探讨36h睡眠剥夺(SD)对青年军人视觉-运动联结机制的影响。方法 10名健康青年军人在36h睡眠剥夺条件下,分别在SD前后进行视觉空间旋转任务的事件相关电位测定。测量P500的平均潜伏期、波幅及其错误数和反应时。结果与SD0h相比,SD36h错误率升高[(9.7±3.9)%比(18.3±4.5)%,P<0.05]、反应时延长[(632.5±53.6)ms比(693.6±65.7)ms,P<0.05],波幅降低[(8.7±2.3)μV比(5.2±1.6)μV,P<0.05]、潜伏期延迟[(489.6±42.6)ms比(530.2±51.9)ms,P<0.05],视觉空间旋转角度的典型线性(递增或减)函数消失。结论 36hSD在一定程度上损害了军人视觉-运动联结机制,从而损害视觉空间认知定位能力。 展开更多
关键词 睡眠剥夺 青年军人 视觉-运动联结 事件相关电位
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条件性视觉—运动学习的研究
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作者 唐宗湘 《广西师范大学学报(自然科学版)》 CAS 1998年第4期85-91,共7页
大脑皮层的广泛区域参与条件性视觉—运动学习:视皮层对物体的视觉信号进行处理;运动皮层发出指令完成运动动作;联合皮层接受不同区域的信号输入后进行整合形成视知觉并通知运动皮层完成条件性运动运动前区背外侧部(PMd)、基... 大脑皮层的广泛区域参与条件性视觉—运动学习:视皮层对物体的视觉信号进行处理;运动皮层发出指令完成运动动作;联合皮层接受不同区域的信号输入后进行整合形成视知觉并通知运动皮层完成条件性运动运动前区背外侧部(PMd)、基底神经节和前额叶皮层腹侧部(PFv)在条件性视觉—运动学习中起重要的作用;海马参与条件性视觉—运动学习. 展开更多
关键词 条件性视觉 运动学习 视觉信息 大脑皮层
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New Issue to Modeling Intentionality in the Field of Consciousness
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作者 Pierre R. Blanquet 《Journal of Behavioral and Brain Science》 2015年第9期348-367,共20页
Brentano in 1870s was the first to introduce intentionality to mean “conscious of”. At the end of the 1960s, a version of this view was developed by analytic American philosophy to construct a theory of meaningful l... Brentano in 1870s was the first to introduce intentionality to mean “conscious of”. At the end of the 1960s, a version of this view was developed by analytic American philosophy to construct a theory of meaningful language. That led Dennett to claim that intentionality was mainly a feature of sentence, not mental states. In contrast, Searle in 1990s rejected the Brentanian thesis and explained intentionality by a biological naturalism. Thereafter, radical eliminativists such as Churchland claimed that all philosophical arguments merited replacement by neuroscientific knowledge. Unfortunately, very few neurophysiological studies attempted to scientifically tackle the problem raised by intentionality. The issue now emerging is a new conception of intentionality based on phenomenological, neurobiological and quantum theories, such as: 1) the notion of “intentional arc” proposed in the philosophy of Merleau-Ponty;2) the neurobiological and quantum model of Freeman, in which self-organizing pathways are accompanied by quantum transitions in controlling intentionality in brain;3) the recent hypothesis that some visuo-motor neurons would be involved in controlling these self-organized pathways;4) the quantum models of Vitiello and Globus, in which a thermofield (dissipative) system governs the dynamic dialog of dual quantum modes between environment and brain. Based on this conception of mind-world interactions, it implicitly appears that intentionality might be a fundamental force which draws us irreversibly towards the future. An alternative hypothesis based on this promising proposal is argued. 展开更多
关键词 INTENTIONALITY Models CONSCIOUSNESS Quantum Theories CORTICAL SELF-ORGANIZED Systems visuo-motor NEURONS
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