Depression relapse and ethological measures.

Within the framework of interactional theories on depression, the question is raised whether depression relapse can be predicted by observable behavior of remitted patients and their interviewer during an interaction (i.e. discharge interview). Thirty-four patients were interviewed at hospital discharge and at a follow-up, 6 months later. Eight patients (23.5%) had relapsed at follow-up. Various behaviors of patients and interviewers were observed during an interview by ethological methods. One of the six patient behavioral factors, and none of the seven interviewer factors were related to relapse. Depression relapse patients displayed significantly less Active Listening (intense body touching and head movements during listening) during the interview at hospital discharge than those with stable remission. Results on Active Listening could not be explained by the degree of retardation (HRSD) and underlined the significance of interpersonal mechanisms in the onset and maintenance of depression.