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Global Oscillations of Neural Fields in CA3

  • Francesco Ventriglia
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5164)

Abstract

The investigation on the conditions which cause global population oscillatory activities in neural fields, originated some years ago with reference to a kinetic theory of neural systems, as been further deepened in this paper. In particular, the genesis of sharp waves and of some rhythmic activities, such as theta and gamma rhythms, of the hippocampal CA3 field, behaviorally important for their links to learning and memory, has been analyzed with more details. To this aim, the modeling-computational framework previously devised for the study of activities in large neural fields, has been enhanced in such a way that a greater number of biological features, extended dendritic trees–in particular, could be taken into account. By using that methodology, a two-dimensional model of the entire CA3 field has been described and its activity, as it results from the several external inputs impinging on it, has been simulated. As a consequence of these investigations, some hypotheses have been elaborated about the possible function of global oscillatory activities of neural populations of Hippocampus in engram formation.

Keywords

Pyramidal Neuron Entorhinal Cortex Inhibitory Input Medial Septum Neural Population 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2008

Authors and Affiliations

  • Francesco Ventriglia
    • 1
  1. 1.Istituto di Cibernetica ”E.Caianiello” del CNRPozzuoliItaly

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