ILO Home
Volver a la página de entrada
Site map | Contact us English | Français

Base de datos CISDOC

ID (ISN) del documento112371
Número CIS 12-0347
ISSN - Título de la serie 0019-8366 - Industrial Health
Año 2011
Número de serie
Autor(es) Liu X., Iwanaga K., Koda S.
Título Circulatory and central nervous system responses to different types of mental stress
Información bibliográfica May 2011, Vol.49, No.3, p.265-273.Illus. 28 ref.
Acceso Internet Circulatory_and_central_nervous_system_responses_[INTERNET_FREE_ACCESS] [en inglés]
Resumen The purpose of this study was to compare the physiological responses to different types of mental stress encountered in the workplace. Circulatory and central nervous system responses were examined in eight healthy males by exposing them to 20-min of white noise (80 dB(A)) and 20-min of computer-based mental arithmetic tasks as models of vascular and cardiac stress, respectively. The results indicated that both cardiac and vascular stresses increased blood pressure and showed a cumulative effect as exposure period was extended. Heart rate and prefrontal oxygenated hemoglobin levels increased in the face of cardiac stress but were not clearly altered by vascular stress and indicated that cardiac stress higher cardiac response and requires more oxygen supply to the brain. The circulatory and central nervous system responses to cardiac stress and to vascular stress may have different underlying mechanisms, and measuring physiological indices appears to be an effective method by which to evaluate the influence of mental stress.
Descriptores (primarios) ruido; sistema cardiovascular; sistema nervioso central; factores de estrés; estrés mental
Descriptores (secundarios) oxígeno; presión sanguínea; rendimiento cognitivo; dosificación en la sangre; investigaciones sobre el estrés; electroencefalografía
Tipo de documento D - Artículos periódicos
Tema(s) Fisiología del trabajo
Broad subject area(s) Estrés, factores sicosociales
Medicina del trabajo, epidemiología
Navegación por categoria(s) Noise
Mental workload