Modulation of the interictal epileptiform EEG activity during sleep: from oscillations to complex dynamics

R. Ferri; P. Bergonzi; M. Elia; P. Ferri; S. A. Musumeci

doi:10.1016/S0987-7053(05)80349-1

Modulation of the interictal epileptiform EEG activity during sleep: from oscillations to complex dynamics

R. Ferri, P. Bergonzi, M. Elia, P. Ferri, S. A. Musumeci

www.irccs.oasi.en.it

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Abstract

Polygraphic sleep recordings (EEG, EMG, and EOG) were performed in two groups of epileptic subjects, six with fragile-X syndrome and six with symptomatic epilepsy. Recordings were visually scored for sleep stages and number of spikes/min. Subjects with fragile-X syndrome showed a well defined pattern of production of interictal epileptiform activity with the lowest values during REM sleep; symptomatic epileptic subjects showed less defined and more variable spike/min diagrams. The spectral analysis of the outline of such diagrams confirmed these differences showing shorter periodicties (80-100 min) in the fragile-X group compared to those of the symptomatic group (160-220 min). Finally, a model with multiple feedback circuits is proposed in order to explain the different patterns observed.

Original language	English
Pages (from-to)	1-14
Number of pages	14
Journal	Neurophysiologie Clinique / Clinical Neurophysiology
Volume	21
Issue number	1
DOIs	https://doi.org/10.1016/S0987-7053(05)80349-1
Publication status	Published - 1991

Keywords

epilepsy
sleep

ASJC Scopus subject areas

Clinical Neurology
Neuroscience(all)

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Ferri, R., Bergonzi, P., Elia, M., Ferri, P., & Musumeci, S. A. (1991). Modulation of the interictal epileptiform EEG activity during sleep: from oscillations to complex dynamics. Neurophysiologie Clinique / Clinical Neurophysiology, 21(1), 1-14. https://doi.org/10.1016/S0987-7053(05)80349-1

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