DIFFERENTIAL 24-HOUR VARIATION OF ALERTNESS AND SUBJECTIVE TENSION IN PROCESS CONTROLLERS: INVESTIGATION OF THE RELATIONSHIP WITH BODY TEMPERATURE AND HEART RATE

Autor: Magali Cariou, Claudine Mélan, Edith Galy
Přispěvatelé: Laboratoire d'Anthropologie et de Psychologie Cliniques, Cognitives et Sociales (LAPCOS), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Université Côte d'Azur (UCA), Cognition, Langues, Langage, Ergonomie (CLLE-LTC), École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Toulouse - Jean Jaurès (UT2J)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2008
Předmět:
Zdroj: Chronobiology International
Chronobiology International, Taylor & Francis, 2008, 25 (4), pp.597-609. ⟨10.1080/07420520802261838⟩
ISSN: 0742-0528
1525-6073
DOI: 10.1080/07420520802261838⟩
Popis: International audience; The effects of shift and time-on-shift on alertness and perceived tension, as well as related physiological variables, were investigated in satellite controllers working a rapid forward rotating three-shift system. In controlled laboratory conditions, subjective tension and HR have been reported to display circadian variation and marked sensitivity to external factors. We examined whether circadian variations were masked for these particular variables in real-job conditions, unlike for alertness and body temperature , which have been repeatedly shown to display circadian variation in these conditions. This hypothesis was tested in a repeated-measures design by collecting alertness and tension self-reports and recording operators' sublingual temperature on three occasions on each shift and HR continuously throughout shifts. Alertness and body temperature varied according to a typical diurnal trend; subjective tension was only enhanced on the initial recording of each shift (compared to the remaining ones), while HR displayed an intermediary trend. Intra-subject correlations revealed a positive relationship between alertness, oral temperature, and HR, while no such relationship was found for subjective tension. These results support the hypothesis of a close dependence of alertness and temperature, and to a lesser extent for HR, on endogenous mechanisms in this job-situation. In addition, some situation-specific factors, such as job-demand, would affect subjective tension and partially mask the circadian variations in HR. (Author correspondence: cmelan@univ-tlse2.fr)
Databáze: OpenAIRE