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大脑的时间和空间如何介导意识及其不同维度?意识的时空理论(TTC)。

How do the brain's time and space mediate consciousness and its different dimensions? Temporo-spatial theory of consciousness (TTC).

机构信息

Mental Health Centre, Zhejiang University School of Medicine, Hangzhou, Zhejiang Province, China; University of Ottawa, Institute of Mental Health Research, University of Ottawa Brain and Mind Research Institute, Ottawa, Canada; Centre for Cognition and Brain Disorders, Hangzhou Normal University, Hangzhou, China; Centre for Brain and Consciousness, Taipei Medical University (TMU), Taipei, Taiwan; College for Humanities and Medicine, Taipei Medical University (TMU), Taipei, Taiwan; Center for the Study of Language and Cognition, Zhejiang University, Hangzhou 310028, China.

Department of Anesthesiology and Center for Consciousness Science, University of Michigan, Ann Arbor, USA.

出版信息

Neurosci Biobehav Rev. 2017 Sep;80:630-645. doi: 10.1016/j.neubiorev.2017.07.013. Epub 2017 Jul 28.

Abstract

Time and space are the basic building blocks of nature. As a unique existent in nature, our brain exists in time and takes up space. The brain's activity itself also constitutes and spreads in its own (intrinsic) time and space that is crucial for consciousness. Consciousness is a complex phenomenon including different dimensions: level/state, content/form, phenomenal aspects, and cognitive features. We propose a Temporo-spatial Theory of Consciousness (TTC) focusing primarily on the temporal and spatial features of the brain activity. We postulate four different neuronal mechanisms accounting for the different dimensions of consciousness: (i) "temporo-spatial nestedness" of the spontaneous activity accounts for the level/state of consciousness as neural predisposition of consciousness (NPC); (ii) "temporo-spatial alignment" of the pre-stimulus activity accounts for the content/form of consciousness as neural prerequisite of consciousness (preNCC); (iii) "temporo-spatial expansion" of early stimulus-induced activity accounts for phenomenal consciousness as neural correlates of consciousness (NCC); (iv) "temporo-spatial globalization" of late stimulus-induced activity accounts for the cognitive features of consciousness as neural consequence of consciousness (NCCcon).

摘要

时间和空间是自然界的基本构成要素。作为自然界中独特的存在,我们的大脑存在于时间和空间中。大脑的活动本身也构成并在其自身的(内在)时间和空间中传播,这对于意识至关重要。意识是一种复杂的现象,包括不同的维度:水平/状态、内容/形式、现象方面和认知特征。我们提出了一个意识的时空理论(TTC),主要关注大脑活动的时间和空间特征。我们假设了四个不同的神经元机制,解释了意识的不同维度:(i)自发活动的“时空嵌套”解释了意识的水平/状态,作为意识的神经倾向(NPC);(ii)前刺激活动的“时空对齐”解释了意识的内容/形式,作为意识的神经前提(preNCC);(iii)早期刺激诱导活动的“时空扩展”解释了现象意识,作为意识的神经相关物(NCC);(iv)晚期刺激诱导活动的“时空全球化”解释了意识的认知特征,作为意识的神经后果(NCCcon)。

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