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Quantitative EEG after activation methods in chronic patients with alcohol dependence

Published online by Cambridge University Press:  16 April 2020

J. Dragasek
Affiliation:
First Department of Psychiatry, Faculty of Medicine, University of P.J. Safarik, University Hospital of L. Pasteur, Kosice, Slovakia
M. Drimalova
Affiliation:
Department of Psychiatry, Jessenius Faculty of Medicine, Comenius University, Martin, Slovakia
M. Martinove
Affiliation:
Special Therapeutic Psychiatric Institute, Predna Hora, Slovakia
E. Palova
Affiliation:
First Department of Psychiatry, Faculty of Medicine, University of P.J. Safarik, University Hospital of L. Pasteur, Kosice, Slovakia
D. Breznoscakova
Affiliation:
First Department of Psychiatry, Faculty of Medicine, University of P.J. Safarik, University Hospital of L. Pasteur, Kosice, Slovakia
B. Bodnar
Affiliation:
First Department of Psychiatry, Faculty of Medicine, University of P.J. Safarik, University Hospital of L. Pasteur, Kosice, Slovakia
P. Jankovic
Affiliation:
Department of Biochemistry, Jessenius Faculty of Medicine, Comenius University, Martin, Slovakia

Abstract

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Background and aims:

In our study, the magnitude of EEG power spectra of delta, theta, alpha and beta power was examined to address the relationship between EEG spectral changes after activation methods and alcohol dependence. Electroencephalography has shown that the brain activity of alcoholics and nonalcoholics differs in some characteristic ways. These differences are consistent with an imbalance between excitation and inhibition processes in the brains of alcoholics.

Methods:

We examined eyes-closed resting EEG and EEG after activation procedures (eyes-open, hyperventilation). A group of 54 male chronic alcoholics were selected according to inclusion and exclusion criteria. We compared this group with 54 age- and gender-matched control subjects from the group of healthy volunteers. All subjects in both groups were Caucasians.

Results:

Our results in power spectra of activated EEG /after eyes-open period, hyperventilation) showed statistically significant differences in reactivity to activation methods between alcohol dependent patients and healthy volunteers. Our data manifested significant contrast in modulation of alpha activity after EEG activation using eyes-open test.

Conclusions:

In previous studies researchers compared eyes-closed resting EEG spectra in alcohol dependent study participants and age- and gender-matched control subjects. The present study reported statistically significant differences in reactivity to activation methods in both groups. Hence, the EEG spectra after activation methods in children of alcoholic, especially before alcohol exposure, need to be examined to consider these differences in reactivity to activation methods as an endophenotype marker of chronic alcoholism.

Type
Poster Session 1: Alcoholism and Other Addictions
Copyright
Copyright © European Psychiatric Association 2007
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