A framework for consciousness
Francis Crick,Christof Koch +1 more
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TLDR
This framework offers a coherent scheme for explaining the neural correlates of (visual) consciousness in terms of competing cellular assemblies and outlines some general experimental approaches to the problem.Abstract:
Here we summarize our present approach to the problem of consciousness. After an introduction outlining our general strategy, we describe what is meant by the term 'framework' and set it out under ten headings. This framework offers a coherent scheme for explaining the neural correlates of (visual) consciousness in terms of competing cellular assemblies. Most of the ideas we favor have been suggested before, but their combination is original. We also outline some general experimental approaches to the problem and, finally, acknowledge some relevant aspects of the brain that have been left out of the proposed framework.read more
Citations
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Experimental and Theoretical Approaches to Conscious Processing
TL;DR: Converging neuroimaging and neurophysiological data point to objective neural measures of conscious access: late amplification of relevant sensory activity, long-distance cortico-cortical synchronization at beta and gamma frequencies, and "ignition" of a large-scale prefronto-parietal network.
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Conscious, preconscious, and subliminal processing: a testable taxonomy.
Stanislas Dehaene,Jean-Pierre Changeux,Jean-Pierre Changeux,Lionel Naccache,Jérôme Sackur,Claire Sergent +5 more
TL;DR: A taxonomy is proposed that distinguishes between vigilance and access to conscious report, as well as between subliminal, preconscious and conscious processing, and that conscious perception is systematically associated with surges of parieto-frontal activity causing top-down amplification.
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An information integration theory of consciousness
TL;DR: The information integration theory accounts, in a principled manner, for several neurobiological observations concerning consciousness, including the association of consciousness with certain neural systems rather than with others; the fact that neural processes underlying consciousness can influence or be influenced by neural processes that remain unconscious; the reduction of consciousness during dreamless sleep and generalized seizures.
Journal ArticleDOI
New vistas for α-frequency band oscillations
TL;DR: It is proposed that simultaneous α-, β- (14–30Hz) and γ- (30–70Hz) frequency band oscillations are required for unified cognitive operations, and hypothesize that cross-frequency phase synchrony between α, β and ι oscillations coordinates the selection and maintenance of neuronal object representations during working memory, perception and consciousness.
References
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Journal ArticleDOI
Distributed Hierarchical Processing in the Primate Cerebral Cortex
TL;DR: A summary of the layout of cortical areas associated with vision and with other modalities, a computerized database for storing and representing large amounts of information on connectivity patterns, and the application of these data to the analysis of hierarchical organization of the cerebral cortex are reported on.
Journal ArticleDOI
Neural Mechanisms of Selective Visual Attention
Robert Desimone,John S. Duncan +1 more
TL;DR: The two basic phenomena that define the problem of visual attention can be illustrated in a simple example and selectivity-the ability to filter out un wanted information is illustrated.
Book
The Organization of Behavior: A Neuropsychological Theory
TL;DR: In this paper, the authors discuss the first stage of perception: growth of the assembly, the phase sequence, and the problem of Motivational Drift, which is the line of attack.
Book
The visual brain in action
TL;DR: This chapter discusses vision from a biological point of view, attention, consciousness, and the coordination of behaviour in primate visual cortex, and discusses dissociations between perception and action in normal subjects.