Cognition and neural networks, a new perspective based on functional neuroimaging

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Publication Details

Author list: Maestu F
Publisher: Cesar Viguera
Publication year: 2003
Journal: Revista de Neurologia (0210-0010)
Volume number: 37
Issue number: 10
Start page: 962
End page: 966
Number of pages: 5
ISSN: 0210-0010
Languages: English-Great Britain (EN-GB)


Abstract

Aim. We went through a critical review of the current status of
neuroimaging studies of cognition. Thus, we argue why the use of a
neuronal network perspective could led us to a better understanding of
cognition than a localizationism perspective. Method. The question about
how cognitive functions are organized in the brain, comes from the very
early lesions studies. Electrocortical stimulation and the intracorotid
amytal procedure collaborate together with lesions studies to increase
the knowledge about the organization of cognitive functions in the
brain. Functional neuroimaging could help to this issue answering the
following questions: where, when and how the activity is produced in the
brain. Many of the functional neuroimaging studies have addressed the
question of where the activity is located, but very few has been
concentrated into describe the spatio-temporal profiles of brain
activity, and then how the neural networks which support cognition are
organized. Taking into account just one of this perspectives (where or
when) we could achieve a reductionism view of the problem. Conclusions.
Executive function, memory or language are more distributed than located
in just one area, even the different subprocesses that are included in
each of this junctions are supported by a network rather than a
particular area. We analyze the current available functional
neuroimaging techniques under this view and its possibilities to
describe the neural networks which support cognition.


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Last updated on 2019-10-08 at 00:15