Clarification

In a photo caption and story published in the March 30 issue, the Chronicle reported the research of Martha McClintock, the David Lee Shillinglaw Professor in Psychology, and Suma Jacob (A.B., ’91, Ph.D., ’98).

The research involved a study of odorless steroid chemosignals and their unconscious effects on people’s moods.

Jacob, who is currently a third-year medical student in the M.D./Ph.D. program, is the primary author of the paper “Psychological State and Mood Effects of Steroidal Chemosignals in Women and Men,” which was published in Hormones and Behavior. According to McClintock, the study was based on Jacob’s doctoral dissertation research and represents a collaboration with many members of her laboratory. The study subject who was pictured in the photograph was Davinder Hayreh (A.B., ’96).