Changes in EEG amplitude (Alpha and Beta waves) with Thermal environment
When executing a task, brain activity can be observed through electric waves recorded in different frequency bands. The main ones are the Alpha, Beta, Theta and Delta waves. According to some authors, Alpha and Beta waves are related with cognitive capacity and, their presence and evolution, with an...
- Autores:
-
Tiago-Costa, Emanuel
Quelhas-Costa, Emília
Santos-Baptista, João
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2016
- Institución:
- Universidad Nacional de Colombia
- Repositorio:
- Universidad Nacional de Colombia
- Idioma:
- spa
- OAI Identifier:
- oai:repositorio.unal.edu.co:unal/60547
- Acceso en línea:
- https://repositorio.unal.edu.co/handle/unal/60547
http://bdigital.unal.edu.co/58879/
- Palabra clave:
- 62 Ingeniería y operaciones afines / Engineering
Alpha waves
Beta waves
thermal environmental
cognitive capacity
- Rights
- openAccess
- License
- Atribución-NoComercial 4.0 Internacional
| Summary: | When executing a task, brain activity can be observed through electric waves recorded in different frequency bands. The main ones are the Alpha, Beta, Theta and Delta waves. According to some authors, Alpha and Beta waves are related with cognitive capacity and, their presence and evolution, with an individual’ alertness. In this study, the intention was to evaluate how brain activity is directly influenced by temperature and humidity while performing a task. Therefore, a set of laboratory tests were undertaken to simulate sedentary work in two different thermal environments: 18ºC - 40% RH (cold) and 35ºC - 80% RH (hot). In the hot thermal environment, oscillation on Alpha waves amplitude suggests an alternation between periods of tiredness with periods in which concentration increases. Regarding Beta waves in the cold thermal environment, most of the time Beta activity is typically higher than that verified in the hot thermal environment. |
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