A pilot investigation into the neuroendocrine correlates of personality inthe workplace

Pilot data are reported on the relation rate of adaptation to a change in u sual patterns of circadian behaviour by personality scores. Personality was defined through scores on the Eysenck Personality Inventory and change in circadian behavior av working a random day shift in a predominately night s hift work schedule. The rate of adaptation to change in circadian behavior pattern was recorded Ly levels of salivary Cortisol for each subject. 4 per sons scoring high on Extraversion produced more Cortisol during the day shi ft, while the 2 scoring high on Intraversion produced more during the night shift.