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Aims Impaired social function has been described in patients following stroke. The present study was designed to explore the degree of impairment in the ability to infer mental states in others, or cognitive and affective theory of mind, and empathy, in patients with stroke. Method A total of 34 patients with stroke were compared to 40 control subjects on tasks testing verbal and non-verbal theory of mind and empathy. Results Results indicated that patients with stroke were significantly impaired in both cognitive and affective theory of mind, even controlling for basic cognitive function and emotional processing. The patients with right stroke had poorer performance than those with left stroke on the cognitive component of non-verbal theory of mind. On the subscale of cognitive empathy, the right stroke group had poorer performance on perspective-taking than the control group. Conclusion The right hemisphere may play an important role in decoding non-verbal cues to infer others' minds as well as the processing of empathy, especially the ability of perspective-taking. [ABSTRACT FROM AUTHOR]

The present study examined the depressive realism hypothesis, which posits that depressed people are often more accurate in their perceptions and judgments than non-depressed people are. Each subject initially generated descriptions of others important to them, both positive and negative important others, in the pretest section, and 3 or 4 weeks later, some subjects were invited into the formal experiment to measure the accuracy of their perceptions in a pseudo–social interaction situation. A total of 52 patients diagnosed with clinical depression and 62 normal matched subjects participated in the experimental procedure. The results indicate that clinically depressed patients provided more accurate, less distorted descriptions of their positive important others than did those in the normal group. However, when information involved the negative important others, the results exhibited a trend, but these results did not provide significant support for the depressive realism hypothesis. The results support the depressive realism hypothesis when tasks involve subjects' own positive important others. [ABSTRACT FROM AUTHOR]