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Objective:To evaluate the release of oxytocin as a biomarker of romantic-partner attachment during couple recreation. Background: To date, no studies have examined the impact of distinct types of recreation activities on the release of oxytocin. The Ecology for Family Experience framework, which highlights the divergent experience of family members, guided the experimental design. Method: A total of 20 cohabitating or married couples were randomly assigned to one of the following two experimental groups: board games or art class. Urinary oxytocin was measured before and after the recreational activity. Analysis of covariance was used to determine group differences in oxytocin levels. Results All groups released oxytocin during couple activities. Men in the art class demonstrated oxytocin response twice the level than other groups. Couples in the art class reported more partner touching than couples playing board games. A significant environmental impact was also identified.

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