Psychophysiological reactions during the first year of a foreign assignment: Results of a controlled longitudinal study

Abstract

Previous studies reveal that employees are exposed to several potential stressors during foreign assignments. This prospective multidisciplinary study followed managers (expatriate group) before and during their first year of an international work assignment. Concurrently, a matched reference group that did not relocate was observed. The secretion of the stress-sensitive hormone prolactin increased in the expatriate group during the first year abroad, compared to the reference group. Selfesteem, family relations, language skills, decreased internal locus of control and job promotion explained 32% of the variance in serum prolactin levels. Lower self-esteem and sense of coherence was related to increased serum prolactin. Increased working hours were associated with decreased work satisfaction. Job promotion was not related to work satisfaction. Mental well-being decreased in the expatriate group, compared to the reference group. Individual factors such as a strong sense of coherence and social provision attenuated decreases in mental well-being. A significant increase in cigarette and alcohol consumption was found in the expatriate group during the first year abroad. This study indicates that there are important psychosocial determinants influencing psychophysiological response patterns in expatriates. The present results put into question the generalizability of the ‘culture shock’ syndrome. The results have practical implications for guiding expatriates on time-limited assignments.