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Frontal Electroencephalogram Alpha Asymmetry during Mental Stress Related to Workplace Noise

Authors :
Emad Alyan
Mohd Zuki Yusoff
Frédéric Merienne
Nidal Kamel
Mohammad Abdul Rahman
Naufal M. Saad
Mohd Azman Zakariya
Christophe Guillet
Centre for Intelligent Signal and Imaging Research [Petronas] (CISIR)
Universiti Teknologi PETRONAS (UTP)
Department of Electrical & Electronics Engineering [Petronas]
Faculty of Engineering [Petronas]
Universiti Teknologi PETRONAS (UTP)-Universiti Teknologi PETRONAS (UTP)
Faculty of Medicine, University of Malaya [Kuala Lumpur, Malaisie]
University of Malaya [Kuala Lumpur, Malaisie]
Laboratoire d’Ingénierie des Systèmes Physiques et Numériques (LISPEN)
Arts et Métiers Sciences et Technologies
HESAM Université (HESAM)-HESAM Université (HESAM)
Ministry of Higher Education Malaysia under the Higher Institutional Centre of Excellence (HICoE) Scheme
Source :
Sensors, Sensors, MDPI, 2021, 21 (6), pp.1968. ⟨10.3390/s21061968⟩, Volume 21, Issue 6, Sensors (Basel, Switzerland), Sensors, Vol 21, Iss 1968, p 1968 (2021)
Publication Year :
2021
Publisher :
HAL CCSD, 2021.

Abstract

This study aims to investigate the effects of workplace noise on neural activity and alpha asymmetries of the prefrontal cortex (PFC) during mental stress conditions. Workplace noise exposure is a pervasive environmental pollutant and is negatively linked to cognitive effects and selective attention. Generally, the stress theory is assumed to underlie the impact of noise on health. Evidence for the impacts of workplace noise on mental stress is lacking. Fifteen healthy volunteer subjects performed the Montreal imaging stress task in quiet and noisy workplaces while their brain activity was recorded using electroencephalography. The salivary alpha-amylase (sAA) was measured before and immediately after each tested workplace to evaluate the stress level. The results showed a decrease in alpha rhythms, or an increase in cortical activity, of the PFC for all participants at the noisy workplace. Further analysis of alpha asymmetry revealed a greater significant relative right frontal activation of the noisy workplace group at electrode pairs F4-F3 but not F8-F7. Furthermore, a significant increase in sAA activity was observed in all participants at the noisy workplace, demonstrating the presence of stress. The findings provide critical information on the effects of workplace noise-related stress that might be neglected during mental stress evaluations. Ministry of Higher Education Malaysia under the Higher Institutional Centre of Excellence (HICoE) Scheme

Details

Language :
English
ISSN :
14248220
Database :
OpenAIRE
Journal :
Sensors, Sensors, MDPI, 2021, 21 (6), pp.1968. ⟨10.3390/s21061968⟩, Volume 21, Issue 6, Sensors (Basel, Switzerland), Sensors, Vol 21, Iss 1968, p 1968 (2021)
Accession number :
edsair.doi.dedup.....ee847eb6c75d03dbd668c57b1c132b6a
Full Text :
https://doi.org/10.3390/s21061968⟩