Influence of thermal environment on occipital EEG signal amplitude in sedentary activities

• Tipo: Artigo em Revista Científica Internacional
• Data: 2019

Autores

Emília Costa (Autor) Outra; João Santos Baptista (Autor) FEUP; Jorge Carvalho (Autor) FEUP; J. Torres Costa (Autor) Outra

Revista

Título: International Journal of Occupational and Environmental Safety

Vol. 6

Páginas: 1-12

ISSN: 2184-0954

Editora: FEUP - Sociedade Portuguesa de Segurança e Higiene Ocupacionais

Indexação

DOAJ

Outras Informações

ID Authenticus: P-00Q-D4D

DOI: 10.24840/2184-0954_003.001_0001

Abstract (EN): 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.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 12