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Recurrent Corticocortical Interactions in Neural Disease
Victor A. F. Lamme, PhD
Arch Neurol. 2003;60:178-184.
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INTRODUCTION
The cerebral cortex consists of many areas, each subserving a more or less distinct function. This view has its roots in the early work of Penfield and today is reflected in functional magnetic resonance imaging literature describing the regions of the brain that are activated during particular tasks, percepts, actions, or thoughts. Moreover, the currently held view is that these areas, and their associated functions, are organized in a hierarchical fashion. Some areas are low level, performing basic operations on the sensory input. Via feed-forward corticocortical connections, this information is transferred to intermediate and high-level areas (Figure 1A) where more sophisticated processes occur, such as object recognition, multisensory integration, decision making, attention, or reasoning.
Figure appears in full text version.
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Figure 1. Feed-forward vs recurrent processing in visual perception and awareness. A, In the classical view of cortical processing, feed-forward connections transfer information from low-level to high-level areas that . . . [Full Text of this Article]
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HIERARCHICAL FEED-FORWARD CORTICAL PROCESSING
RECURRENT INTERACTIONS MEDIATE PERCEPTUAL ORGANIZATION
RECURRENT PROCESSING IN VISUAL AWARENESS AND ATTENTION
ELECTROPHYSIOLOGICAL MANIFESTATIONS OF RECURRENT PROCESSING IN HUMAN SUBJECTS
CLINICAL MANIFESTATIONS OF DYSFUNCTIONAL RECURRENT PROCESSING
CONCLUSIONS
From the Department of Psychology, University of Amsterdam, and the Netherlands Ophthalmic Research Institute, Amsterdam.
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