Cortical Asymmetry and Modulation of Frontal Beta Brain Activity by Perceived Stress

Cortical Asymmetry and Modulation of Frontal Beta Brain Activity by Perceived Stress | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 5 September 2025 V1 Latest version Share on Cortical Asymmetry and Modulation of Frontal Beta Brain Activity by Perceived Stress Authors : I.E.F. Guimarães , P.R.K. Goulart , and F.A.F. Rocha 0000-0002-6148-1050 [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.175706133.32153025/v1 125 views 67 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract This study explores the connection between perceived stress, frontal cortical asymmetry, and brain activity in Low and High Beta frequency bands under eyes-open and eyes-closed conditions. Utilizing EEG, the research assessed perceived stress through the Perceived Stress Scale (PSS). Results indicated a moderate to strong positive correlation (r = 0.66) between frontal asymmetry and perceived stress with eyes open. Conversely, the eyes-closed condition showed weak and non-significant correlations for Low Beta and a weak correlation for frontal asymmetry. In the eyes-open state, a significant positive correlation existed between perceived stress and Low Beta activity, particularly in the right hemisphere (FP2: r = 0.73, p < 0.01; FP1: r = 0.66, p < 0.05). High Beta activity also presented a positive trend, with a moderate correlation in the right hemisphere (r = 0.42) and weak in the left (r = 0.19). Beta power was generally higher when eyes were closed. These findings suggest that visual state crucially modulates the relationship among frontal Beta activity, cortical asymmetry, and stress, making eyes-open conditions a more reliable stress indicator. The study underscores the importance of visual state in EEG stress data interpretation and offers insights for developing neurophysiological stress biomarkers and neurofeedback interventions. Supplementary Material File (anonymized main document.doc) Download 58.00 KB Information & Authors Information Version history V1 Version 1 05 September 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Authors Affiliations I.E.F. Guimarães Universidade Federal do Para View all articles by this author P.R.K. Goulart Universidade Federal do Para View all articles by this author F.A.F. Rocha 0000-0002-6148-1050 [email protected] Universidade Federal do Para View all articles by this author Metrics & Citations Metrics Article Usage 125 views 67 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation I.E.F. Guimarães, P.R.K. Goulart, F.A.F. Rocha. Cortical Asymmetry and Modulation of Frontal Beta Brain Activity by Perceived Stress. Authorea . 05 September 2025. DOI: https://doi.org/10.22541/au.175706133.32153025/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. 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