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  • Title: Impaired theta phase-resetting underlying auditory N1 suppression in chronic alcoholism.
    Author: Fuentemilla L, Marco-Pallarés J, Gual A, Escera C, Polo MD, Grau C.
    Journal: Neuroreport; 2009 Feb 18; 20(3):337-42. PubMed ID: 19188856.
    Abstract:
    It has been suggested that chronic alcoholism may lead to altered neural mechanisms related to inhibitory processes. Here, we studied auditory N1 suppression phenomena (i.e. amplitude reduction with repetitive stimuli) in chronic alcoholic patients as an early-stage information-processing brain function involving inhibition by the analysis of the N1 event-related potential and time-frequency computation (spectral power and phase-resetting). Our results showed enhanced neural theta oscillatory phase-resetting underlying N1 generation in suppressed N1 event-related potential. The present findings suggest that chronic alcoholism alters neural oscillatory synchrony dynamics at very early stages of information processing.
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