Towards a neurobiological theory of consciousness
The Caltech Institute Archives (California Institute of Technology)Published 1 January 1990Open access
Francis Crick, Christof Koch
Citations1,650
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TL;DR
The neural basis of very short-term memory especia needs more study, and several lines of work are outfits that might advance the understanding of the neural mechanisms involved.
Abstract
Visual awareness is a favorable form of consciousness to study neurobiologically. We propose that it takes two forms: a very fast form, linked to iconic memory, that may be difficult to study; and a somewhat slower one involving visual attention and short-term memory. In the slower form an attentional \nmechanism transiently binds together all those neurons whose activity relates to the relevant features of a single visual object. We suggest this is done by generating coherent semi-synchronous oscillations, probably in the 40-70 Hz range. These oscillations then activate a transient short-term \n(working) memory. We outfit several lines of experimental work that might advance the understanding of the neural mechanisms involved. The neural basis of very short-term memory especially needs more experimental study. \n
Keywords
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