Effects of mood on self-appraisal of health status.

Two experiments investigated the effects of temporary mood on the self-perception of health status. In Experiment 1, participants viewed one of two videotapes designed to induce either positive or negative mood. Under the guise of a second experiment, they were asked to imagine an illness-related scenario and to provide judgments concerning their health status. As predicted, positive-induction participants judged their health more favorably than negative-induction participants. Experiment 2 examined the mediating role of illness-relevant thinking in this mood effect. After seeing one of the two mood-induction tapes, some participants were asked to imagine either an illness-related or illness-unrelated scenario. A third group was given no instructions concerning imagination. As predicted, the relative effect of negative mood on health appraisal was attenuated only among those who imagined a scenario unrelated to health. Furthermore, the pattern of symptom recall data mirrored the self-appraisal findings. The data are consistent with the notion that negative mood can affect subjective appraisals of health by increasing the accessibility of illness-related memories. Implications for diagnostic practice are explored.