Emotional episodes in the everyday lives of people with schizophrenia: the role of intrinsic motivation and negative symptoms.

Research on emotional experience has indicated that subjects with schizophrenia experience less positive, and more negative emotional experience than non-psychiatric subjects in natural settings. Differences in the experience of emotion may result from differences in experiences such that everyday activities may evoke emotions. The purpose of this study was to identify if everyday experience of competence and autonomy were related to positive and negative emotion. Adults with schizophrenia spectrum disorders were recruited from day treatment programs (N=45). Data were collected using experience-sampling methods. A number of subjects failed to meet data adequacy (N=13) but did not differ from retained subjects (N=32) in symptoms or cognition. Positive and negative emotion models were analyzed using hierarchical linear modeling Everyday activities were characterized by those reported as easily accomplished and requiring at most moderate talents. Positive emotional experiences were stronger than negative emotional experiences. The majority of variance in positive and negative emotion existed between persons. Negative symptoms were significantly related to positive emotion, but not negative emotion. The perception that motivation for activity was external to subjects (e.g. wished they were doing something else) was related to decreased positive emotion and enhanced negative emotion. Activities that required more exertion for activities was related to enhanced positive emotion, whereas activities that subjects reported they wanted to do was associated with reduced negative emotion. The implications of this study are that everyday experiences of people with schizophrenia do affect emotional experience and that management of experience to enhance positive emotion may have therapeutic benefits.