Gamma band oscillations under influence of bromazepam during a sensorimotor integration task: an EEG coherence study

Neuroscience Letters
Daniel MincPedro Ribeiro

Abstract

The goal of the present study was to explore the dynamics of the gamma band using the coherence of the quantitative electroencephalography (qEEG) in a sensorimotor integration task and the influence of the neuromodulator bromazepam on the band behavior. Our hypothesis is that the needs of the typewriting task will demand the coupling of different brain areas, and that the gamma band will promote the binding of information. It is also expected that the neuromodulator will modify this coupling. The sample was composed of 39 healthy subjects. We used a randomized double-blind design and divided subjects into three groups: placebo (n=13), bromazepam 3mg (n=13) and bromazepam 6 mg (n=13). The two-way ANOVA analysis demonstrated a main effect for the factors condition (i.e., C4-CZ electrode pair) and moment (i.e., C3-CZ, C3-C4 and C4-CZ pairs of electrodes). We propose that the gamma band plays an important role in the binding among several brain areas in complex motor tasks and that each hemisphere is influenced in a different manner by the neuromodulator.

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Citations

Nov 1, 2015·Arquivos de neuro-psiquiatria·Danielle AprigioBruna Velasques
Apr 30, 2019·Frontiers in Human Neuroscience·Diana Henz, Wolfgang I Schöllhorn
Feb 5, 2021·Toxics·Edilma SanabriaMauricio Maldonado

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