Conscious, preconscious, and subliminal processing: A testable taxonomy

Trends in Cognitive Sciences 10 (5):204-211 (2006)

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Abstract
Amidst the many brain events evoked by a visual stimulus, which are specifically associated with conscious perception, and which merely reflect non-conscious processing? Several recent neuroimaging studies have contrasted conscious and non-conscious visual processing, but their results appear inconsistent. Some support a correlation of conscious perception with early occipital events, others with late parieto-frontal activity. Here we attempt to make sense of those dissenting results. On the basis of a minimal neuro-computational model, the global neuronal workspace hypothesis, we propose a taxonomy which distinguishes between vigilance and access to conscious report, as well as between subliminal, preconscious and conscious processing. We suggest that these distinctions map onto different neural mechanisms, and that conscious perception is systematically associated with a sudden surge of parieto-frontal activity causing top-down amplification
Keywords *Consciousness States  *Neuroimaging  *Subliminal Perception  *Taxonomies  *Visual Stimulation
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DOI 10.1016/j.tics.2006.03.007
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References found in this work BETA

A Sensorimotor Account of Vision and Visual Consciousness.J. Kevin O’Regan & Alva Noë - 2001 - Behavioral and Brain Sciences 24 (5):883-917.
Why Visual Attention and Awareness Are Different.Victor A. F. Lamme - 2003 - Trends in Cognitive Sciences 7 (1):12-18.
A Framework for Consciousness.Francis Crick & Christof Koch - 2003 - Nature Neuroscience 6:119-26.

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Citations of this work BETA

Perceptual Consciousness Overflows Cognitive Access.Ned Block - 2011 - Trends in Cognitive Sciences 15 (12):567-575.
Consciousness Cannot Be Separated From Function.Michael A. Cohen & Daniel C. Dennett - 2011 - Trends in Cognitive Sciences 15 (8):358--364.

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