Influence of thermal environment on occipital EEG signal amplitude in sedentary activities
Even in sedentary activities, the workload is justifying more accurate studies about its impact on human beings mainly when related to different temperature and humidity conditions. One of these impacts is related to mental activity, which can be studied by the amplitude of Alpha and Beta waves. Thi...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Faculty of Engineering of University of Porto
2019-04-01
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| Series: | International Journal of Occupational and Environment Safety |
| Subjects: | |
| Online Access: | https://ijooes.fe.up.pt/article/view/197 |
| _version_ | 1819145995305353216 |
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| author | Emília Quelhas Costa J. Santos Baptista Jorge Cabral Carvalho José Torres Costa |
| author_facet | Emília Quelhas Costa J. Santos Baptista Jorge Cabral Carvalho José Torres Costa |
| author_sort | Emília Quelhas Costa |
| collection | DOAJ |
| description | Even in sedentary activities, the workload is justifying more accurate studies about its impact on human beings mainly when related to different temperature and humidity conditions. One of these impacts is related to mental activity, which can be studied by the amplitude of Alpha and Beta waves. This study aims to evaluate brain activity in the occipital lobe from the amplitude of the EEG signal (Alpha and Beta waves) and to relate it to different conditions of temperature and relative humidity (RH) in sedentary tasks. Tests were performed under four different conditions (22°C-40%RH, 22°C-80%RH, 32°C-40%RH and 32°C, 80%RH) with 30 volunteers from which 15 were validated. Results suggest that both temperature and humidity influence the amplitude of the EEG signal (Alpha and Beta waves) in both hemispheres. The greatest amplitudes were found whenever environmental temperature and/or relative humidity values were higher. The results are in agreement with other authors. |
| first_indexed | 2024-12-22T13:06:53Z |
| format | Article |
| id | doaj.art-9bc0c7f83bb444cb911f3d22a65798d9 |
| institution | Directory Open Access Journal |
| issn | 2184-0954 |
| language | English |
| last_indexed | 2024-12-22T13:06:53Z |
| publishDate | 2019-04-01 |
| publisher | Faculty of Engineering of University of Porto |
| record_format | Article |
| series | International Journal of Occupational and Environment Safety |
| spelling | doaj.art-9bc0c7f83bb444cb911f3d22a65798d92022-12-21T18:24:51ZengFaculty of Engineering of University of PortoInternational Journal of Occupational and Environment Safety2184-09542019-04-013111210.24840/2184-0954_003.001_0001197Influence of thermal environment on occipital EEG signal amplitude in sedentary activitiesEmília Quelhas Costa0J. Santos Baptista1Jorge Cabral Carvalho2José Torres Costa3Associated Laboratory for Energy, Transports and Aeronautics (PROA/LAETA), Faculty of Engineering, University of Porto, PortugalAssociated Laboratory for Energy, Transports and Aeronautics (PROA/LAETA), Faculty of Engineering, University of Porto, PTCentre for Natural Resources and the Environment (CERENA), Faculty of Engineering, University of Porto, PortugalAssociated Laboratory for Energy, Transports and Aeronautics (LAETA), Faculty of Medicine, University of Porto, PortugalEven in sedentary activities, the workload is justifying more accurate studies about its impact on human beings mainly when related to different temperature and humidity conditions. One of these impacts is related to mental activity, which can be studied by the amplitude of Alpha and Beta waves. This study aims to evaluate brain activity in the occipital lobe from the amplitude of the EEG signal (Alpha and Beta waves) and to relate it to different conditions of temperature and relative humidity (RH) in sedentary tasks. Tests were performed under four different conditions (22°C-40%RH, 22°C-80%RH, 32°C-40%RH and 32°C, 80%RH) with 30 volunteers from which 15 were validated. Results suggest that both temperature and humidity influence the amplitude of the EEG signal (Alpha and Beta waves) in both hemispheres. The greatest amplitudes were found whenever environmental temperature and/or relative humidity values were higher. The results are in agreement with other authors.https://ijooes.fe.up.pt/article/view/197thermal environmentcognitive performancealpha wavesbeta waveseeg |
| spellingShingle | Emília Quelhas Costa J. Santos Baptista Jorge Cabral Carvalho José Torres Costa Influence of thermal environment on occipital EEG signal amplitude in sedentary activities International Journal of Occupational and Environment Safety thermal environment cognitive performance alpha waves beta waves eeg |
| title | Influence of thermal environment on occipital EEG signal amplitude in sedentary activities |
| title_full | Influence of thermal environment on occipital EEG signal amplitude in sedentary activities |
| title_fullStr | Influence of thermal environment on occipital EEG signal amplitude in sedentary activities |
| title_full_unstemmed | Influence of thermal environment on occipital EEG signal amplitude in sedentary activities |
| title_short | Influence of thermal environment on occipital EEG signal amplitude in sedentary activities |
| title_sort | influence of thermal environment on occipital eeg signal amplitude in sedentary activities |
| topic | thermal environment cognitive performance alpha waves beta waves eeg |
| url | https://ijooes.fe.up.pt/article/view/197 |
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