Abstract
An analysis has been made of the spontaneous firing of neurons from the posterior motor cortex of the rabbit. Extracellular recordings were made by means of glass capillary micro-electrodes. The recorded neural activity was processed with a general purpose computer and an adapted data processing system. The impulse interval series were analysed by means of a statistical time series analysis. In the first part of the paper, the first order properties of the neutral activity are examined. Using a mathematical model for data reduction, an overall picture of the first order properties of the activity of the set of recorded neurons are obtained. In the second part of the paper, the second order properties of this activity are examined. Using another simple mathematical model completing the first one, the principal aspect of the second order properties are summarized.
Résumé
Nous avons analysé l'activité unitaire spontanée des cellules nerveuses du cortex moteur postérieur du lapin. Les enregistrements extra-cellulaires sont effectués à l'aide de micropipettes de verre. Les trains d'impulsions sont traités avec un ordinateur universel et un système de traitement de données adapté. Les séries d'intervalles sont analysées en utilisant l'analyse statistique des séries temporelles d'évènements. Dans une première partie nous étudions les propriétés du premier ordre de l'activité des neurones. En utilisant un modèle mathématique pour réduire les données, nous obtenons un aperçu général des propriétés de l'activité de l'ensemble des neurones enregistrés. Dans une seconde partie, nous avons étudié les propriétés du second ordre de cette activité. En utilisant un autre model mathématique simple qui complète le premier, nous avons résumé l'aspect principal des propriétés de second ordre.
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Pernier, J., Gerin, P. Temporal patterns analysis of spontaneous unit activity in the neocortex. Biol. Cybernetics 18, 123–136 (1975). https://doi.org/10.1007/BF00326684
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DOI: https://doi.org/10.1007/BF00326684