Can the synchronization of cortical areas be evidenced by fMRI?

The goal of this study is to investigate the possibility of analyzing spatio-temporal organization of the human cortical activity during different complex tasks, by means of fMRI. To evidence cortical areas synchronization we propose a computational approach based on a self-organizing neural network...

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Bibliographic Details
Published in:Neurocomputing (Amsterdam) 1999-06, Vol.26 (1-3), p.1019-1024
Main Authors: Frisone, F, Vitali, P, Iannò, G, Marongiu, M, Morasso, P.G, Pilot, A, Rodriguez, G, Rosa, M, Sardanelli, F
Format: Article
Language:English
Subjects:
Computer simulation
Eye movements
fMRI
Functional electric stimulation
Magnetic resonance imaging
Medical computing
Multiple cortical areas synchronization
Neurophysiology
Self-organized neural networks
Synchronization
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Summary:The goal of this study is to investigate the possibility of analyzing spatio-temporal organization of the human cortical activity during different complex tasks, by means of fMRI. To evidence cortical areas synchronization we propose a computational approach based on a self-organizing neural networks (“neural gas”) that detects time-dependent alterations in the regional intensity of the functional signal. Results of the application of such approach are reported and are compared with the results obtained with a standard statistical package (SPM96). Future experimental investigations will be aimed at the analysis of spatio-temporal structures of cortical activity in pathological conditions, such as epilepsy.
ISSN:0925-2312
1872-8286
DOI:10.1016/S0925-2312(99)00099-5