Reproduction of EEG power spectrum over frontal region during the propofol-induced general anesthesia
Résumé
The present work aims to reproduce certain changes observed experimentally in the EEG power spectrum over the frontal head region during general anesthesia induced by propofol. These observations include increased delta (0-4 Hz) and alpha (8-12 Hz) activities. We extend a previous cortical model and study a neuronal population model of a single thalamo-cortical module consisting of three different populations of neurons, namely cortical excitatory neurons, thalamocortical relay neurons and inhibitory thalamic reticular neurons (Fig. 1). Each module obeys a neural mass model. The cortical inhibitory population is neglected in our model to reveal the effect of propofol action in the thalamus. Our model describes well the characteristic spectral changes observed experimentally within the delta- and alpha- frequency bands in frontal and occipital electrodes with increasing concentration of propofol.
Domaines
Neurosciences [q-bio.NC]
Fichier principal
1471-2202-15-S1-P211.pdf (279.63 Ko)
Télécharger le fichier
1471-2202-15-S1-P211.xml (5.76 Ko)
Télécharger le fichier
Origine | Fichiers éditeurs autorisés sur une archive ouverte |
---|
Format | Autre |
---|---|
Origine | Fichiers produits par l'(les) auteur(s) |