Analysis of the Effects of High-Voltage Transmission Line on Human Stress and Attention Through Electroencephalography (EEG)
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Knowing the variable-frequency, high-intensity electromagnetic field plays an important role in the humans’ surroundings, numerous studies have been carried out on stress and attention based on EEG data. In this study, a comparison was drawn between the brain waves of individuals living near high-voltage transmission towers and those of people living outside of these zones. The levels of stress and attention were also assessed based on the brain activity of the participants. First, a general questionnaire is completed by the volunteers, and the predisposed samples are included in the research following the screening process. Two 10-member groups (average age of 27 years) of adult males were selected for the research. In one of the groups, the participants are not exposed to high-voltage electric fields. The homes of the members of the second group are located beneath or near high-voltage transmission towers (at a maximum distance of 20 m). Using a 14-channel EEG system, the brain waves of each participant were recorded 5 times over 2 days in the eyes-open resting state while the participants were looking at a white screen. (Ten records of data were obtained per person.) The saliva samples of each participant were also obtained to assess the basal cortisol hormone. The mean EEG stress and attention indices were obtained based on the data on each person, and the mean cortisol level of each group was compared to that of the other group. The investigation and comparison results proved that the mean EEG attention indices of people exposed to high-voltage electric fields were lower than those of the ordinary people. On the other hand, the mean levels of basal EEG stress and salivary cortisol hormone were higher in the people exposed to high-voltage electric fields than the ordinary people. Given the variations of the mean indices of stress and attention in the EEGs and salivary samples of the participants as a result, self-efficacy decreases over time.
KeywordsHigh-voltage transmission line Stress Attention EEG Cortisol
This research was conducted by financial support of Neuroscience Research Center, Baqiyatallah; Electrical Engineering Department of Amirkabir University of Technology (Tehran Polytechnic); Qazvin Branch, Islamic Azad University (Intelligent Systems and Cognitive Science Research Laboratory); and NeuroGame Research Laboratory.
Compliance with Ethical Standards
Conflict of interest
The authors have no potential conflict of interests pertaining to this journal submission.
- Ijjada MS et al. (2015) Evaluation of wearable head set devices in older adult populations for research. In: 2015 international conference on computational science and computational intelligence (CSCI), 2015. IEEEGoogle Scholar
- Lang M (2012) Investigating the Emotiv EPOC for cognitive control in limited training time. Honours report, University of Canterbury, p 8Google Scholar
- Lehrer P (2007) Principles and practice of stress management: advances in the field. Assoc Appl Psychophysiol Biofeedback 35(3):82–84Google Scholar
- Oikonomou VP et al. (2017) A comparison study on EEG signal processing techniques using motor imagery EEG data. In: 2017 IEEE 30th international symposium on computer-based medical systems (CBMS), 2017. IEEEGoogle Scholar
- Rodrak S, Wongsawat Y (2013) EEG brain mapping and brain connectivity index for subtypes classification of attention deficit hyperactivity disorder children during the eye-opened period. In: 2013 35th annual international conference of the IEEE engineering in medicine and biology society (EMBC), 2013. IEEEGoogle Scholar
- Sroykham W, Wongsawat Y (2018) Estimation of testosterone/cortisol ratio by resting state EEG delta/beta ratio in elderly people. Neuroendocrinol Lett 39(1):75–82Google Scholar
- Tekieh E et al (2017) Role of basal stress hormones and amygdala dimensions in stress coping strategies of male rhesus monkeys in response to a hazard-reward conflict. Iran J Basic Med Sci 20(8):951–957Google Scholar
- Thibodeau R, Jorgensen RS, Kim S (2006) Depression, anxiety, and resting frontal EEG asymmetry: a meta-analytic review. American Psychological Association, WashingtonGoogle Scholar