Title
Spurious dynamics in somatosensory cortex
Abbreviated Journal Title
Behav. Brain Res.
Keywords
chaotic; dynamical attractor; cortical network model; NMDA; moving; stimuli; directional selectivity; AREA-1 CELL COLUMNS; SPATIAL-ORGANIZATION; PERIPHERAL INPUT; CORTICAL-NEURONS; VISUAL-CORTEX; CHAOS; NOISE; REPRESENTATION; ATTRACTORS; SI; Behavioral Sciences; Neurosciences
Abstract
Cortical networks are dynamical systems whose task is to process information. However, in addition to 'intended' dynamical behaviors, the sheer complexity of a cortical network's structure-regardless of its precise details-should generate additional 'unintended' dynamical behaviors. Dynamics observed in cortical network models and in the somatosensory cortex suggest that such spurious dynamical behaviors are likely to be pervasive but relatively simple, contributing to-rather than dominating-a network's response to stimuli. Spurious dynamics may be responsible for a variety of experimentally observed intriguing features of cortical dynamics. Because of their distributed origins and emergent nature, such dynamical features, while clearly identifiable, will resist attempts at identifying specific mechanisms to explain them. We describe some of the spurious dynamical phenomena associated with somatosensory cortical response to brushing stimulation, to illustrate how spurious dynamics can affect neurons' functional properties, cortical stimulus representation and, ultimately, perception. (C) 2002 Elsevier Science B.V. All rights reserved.
Journal Title
Behavioural Brain Research
Volume
135
Issue/Number
1-2
Publication Date
1-1-2002
Document Type
Article; Proceedings Paper
Language
English
First Page
75
Last Page
82
WOS Identifier
ISSN
0166-4328
Recommended Citation
"Spurious dynamics in somatosensory cortex" (2002). Faculty Bibliography 2000s. 3185.
https://stars.library.ucf.edu/facultybib2000/3185