The split-brain phenomenon is caused by the surgical severing of the corpus callosum, the main route of communication between the cerebral hemispheres. The classical view of this syndrome asserts that conscious unity is abolished. The left hemisphere consciously experiences and functions independently of the right hemisphere. This view is a cornerstone of current consciousness research. In this review, we first discuss the evidence for the classical view. We then propose an alternative, the 'conscious unity, split perception' model. This model asserts that a split brain produces one conscious agent who experiences two parallel, unintegrated streams of information. In addition to changing our view of the split-brain phenomenon, this new model also poses a serious challenge for current dominant theories of consciousness.

中文翻译：

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重新审视裂脑现象：具有分裂感知的单一意识代理

裂脑现象是由手术切断胼胝体引起的，胼胝体是大脑半球之间的主要通信途径。这种综合症的经典观点断言，意识的统一被废除了。左半球有意识地独立于右半球体验和运作。这一观点是当前意识研究的基石。在这篇综述中，我们首先讨论经典观点的证据。然后，我们提出了一个替代方案，即“有意识的统一、分裂的感知”模型。该模型断言，裂脑会产生一个有意识的代理，该代理会体验到两个平行的、未整合的信息流。除了改变我们对裂脑现象的看法之外，这种新模型还对当前占主导地位的意识理论提出了严峻挑战。