<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Short-lasting psycho-physiological relaxation was investigated through an analysis of its bipolar electroencephalographic (EEG) characteristics. In 8 subjects, 6-channel EEG data of 3-minute duration were recorded during 88 relaxation sessions. Time course of spectral EEG features was examined. Alpha powers were decreasing during resting conditions of 3-minute sessions in lying position with eyes closed. This was followed by a decrease of total power in centro-parietal cortex regions and an increase of beta power in fronto-central areas. Represented by EEG coherences the interhemispheric communication between the parieto-occipital regions was enhanced within a frequency range of 2-10 Hz. In order to discern between higher and lower levels of relaxation distinguished according to self-rated satisfaction, EEG features were assessed and discriminating parameters were identified. Successful relaxation was determined mainly by the presence of decreased delta-1 power across the cortex. Potential applications for these findings include the clinical, pharmacological, and stress management fields.</p></abstract>

Short-lasting psycho-physiological relaxation was investigated through an analysis of its bipolar electroencephalographic (EEG) characteristics. In 8 subjects, 6-channel EEG data of 3-minute duration were recorded during 88 relaxation sessions. Time course of spectral EEG features was examined. Alpha powers were decreasing during resting conditions of 3-minute sessions in lying position with eyes closed. This was followed by a decrease of total power in centro-parietal cortex regions and an increase of beta power in fronto-central areas. Represented by EEG coherences the interhemispheric communication between the parieto-occipital regions was enhanced within a frequency range of 2-10 Hz. In order to discern between higher and lower levels of relaxation distinguished according to self-rated satisfaction, EEG features were assessed and discriminating parameters were identified. Successful relaxation was determined mainly by the presence of decreased delta-1 power across the cortex. Potential applications for these findings include the clinical, pharmacological, and stress management fields.

Spectral EEG Features of a Short Psycho-physiological Relaxation

Institute of Measurement Science, Slovak Academy of Sciences, Bratislava, Slovakia

Institute of Normal and Pathological Physiology, Slovak Academy of Sciences, Bratislava, Slovakia

Faculty of Philosophy and Arts, University of Trnava, Slovakia

Measurement Science Review

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

{"article-title":"Spectral EEG Features of a Short Psycho-physiological Relaxation"}

Short-lasting psycho-physiological relaxation was investigated through an analysis of its bipolar electroencephalographic (EEG) characteristics. In 8 subjects,...

Spectral EEG Features of a Short Psycho-physiological Relaxation

Published Online: Aug 23, 2014

Page range: 237 - 242

Received: Sep 14, 2013

Accepted: Jul 31, 2014

DOI: https://doi.org/10.2478/msr-2014-0032

© by Michal Teplan

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.