Electroencephalographic Indicators in Default Mode, Habituation, and Visual-motor Association in Female College Students

Revista de investigación clínica; organo del Hospital de Enfermedades de la Nutrición
Héctor Brust-CarmonaOscar Yáñez-Suarez

Abstract

Oscillations, action, and postsynaptic potentials in glial-neuronal ensembles integrate the spectral power (SP) of electroencephalographic (EEG). Our objective is to propose SP indicators of healthy brains (control groups) based on the default mode and their modifications by habituation and visual-motor association (VM-asso), to support diagnostic and rehabilitation processes. However, important differences seem to exist between men and women. Therefore, we aim to analyze EEG characteristics in a female sample. In the current study, EEG was recorded at rest with closed eyes before and during repeated photostimulations (RPh) and before (pre) and during association of RPh with switch pressing (VM-asso) in 70 female adults. EEG was analyzed using UAM/INR software, which removes artifacts, identifies corresponding signals, selects 20 samples (2-s) from each condition, applies Welch's periodogram to calculate and average the absolute power (AP; AAPs) of ᵹ, θ, α, and β, before and during learning, and emits data to a spreadsheet. Differences in each condition were evaluated using non-parametric tests. The AAPs were different; in habituation, ᵹ and θ increased significantly in fronto-frontal (FF) and frontocentral and decreased in the...Continue Reading

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