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Document ID (ISN)101780
CIS number 03-973
ISSN - Serial title 0095-6562 - Aviation, Space, and Environmental Medicine
Year 2003
Convention or series no.
Author(s) Kraft N.O., Lyons T.J., Binder H.
Title Group dynamics and catecholamines during long-duration confinement in an isolated environment
Bibliographic information Mar. 2003, Vol.74, No.3, p.266-272. Illus. 23 ref.
Abstract The objective of this study was to investigate possible relationships between catecholamine excretion and long-duration confinement in an isolated environment. Stays of long duration in a confinement chamber were made by three groups of four subjects each: an all-Russian team during weeks 1-34; a mixed-nationality team during weeks 3-18; a mixed-nationality team during weeks 22-38. Other groups joined the residents for one-week intervals at weeks 13, 19 and 33. Epinephrine excretion generally remained in the normal range. However, occasional elevations occurred due to psychological stress, which apparently correlate with changes in group dynamics. Norepinephrine excretion was above the normal range and was correlated with social events. These results suggest that to ensure optimum crew performance, entire crews along with their visiting crews should be selected collectively, rather than individually.
Descriptors (primary) catecholamines; space travel; psychology and sociology; confined spaces
Descriptors (secondary) human relations; Russian Federation; neuropsychic stress; determination in urine; epinephrine excretion; norepinephrine excretion; international cooperation; epinephrine
Document type D - Periodical articles
Country / State or ProvinceJapan; USA
Subject(s) Occupational physiology
Broad subject area(s) Stress, psychosocial factors
Browse category(ies) Psychological factors
Space travel
Confined spaces