The objective of present work was to assess differences in spectrum, coherence, and phase synchrony of topical electroencephalogram (EEG) between alcohol-dependent individuals and healthy participants.
Surface currents were mitigated by a common average spatial filter. Parametric spectral and coherence estimates obtained for consecutive 0.5s-long EEG fragments were generally lower for alcoholics than for controls while evaluated for low EEG rhythms.
Phase synchrony computed for 2.34s-long overlapping EEG fragments was lower for alcoholics than for controls while evaluated in α(2) and β(1) rhythms and for specific electrode pairs.
Kruskal-Wallis one-way analysis of variance evaluated these alterations as statistically significant.
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