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Document ID (ISN)112371
CIS number 12-0347
ISSN - Serial title 0019-8366 - Industrial Health
Year 2011
Convention or series no.
Author(s) Liu X., Iwanaga K., Koda S.
Title Circulatory and central nervous system responses to different types of mental stress
Bibliographic information May 2011, Vol.49, No.3, p.265-273.Illus. 28 ref.
Internet access Circulatory_and_central_nervous_system_responses_[INTERNET_FREE_ACCESS] [in English]
Abstract 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.
Descriptors (primary) noise; cardiovascular system; central nervous system; stress factors; mental stress
Descriptors (secondary) oxygen; blood pressure; cognitive performance; determination in blood; stress studies; electroencephalography
Document type D - Periodical articles
Subject(s) Occupational physiology
Broad subject area(s) Stress, psychosocial factors
Occupational medicine, epidemiology
Browse category(ies) Noise
Mental workload