Socio-emotional competence is a key aspect of schizophrenia, both in terms of psychopathological vulnerability and outcome. In this respect, current research increasingly emphasizes the importance of deficits in facial expression recognition. The focus of the present study is the performance in recognizing 6 basic emotions (sadness, anger, happiness, fear, disgust, surprise) which play an essential role in shaping daily function and interpersonal interactions. A group of 20 patients diagnosed with DSM-IV schizophrenia were compared with a group of 20 matched controls on a facial expression recognition task, derived from the Karolinska Directed Emotional Faces (Lundqvist D, Flykt A, Ohmann A (1998) The Karolinska Directed Emotional Faces (KDEF). Stockholm (Sweden): Karolinska Institute), and were subsequently assessed with the Positive and Negative Syndrome Scale (PANSS). Facial expression recognition performance was significantly more impaired in patients, and was selectively correlated with the positive and cognitive dimensions of the positive and negative syndrome scale. Furthermore, significant group differences were found with respect to happiness and surprise.
Difficulties in everyday life activities are core features of persons diagnosed with schizophrenia and in particular during multitasking activities. However, at present, patients׳ multitasking capacities have not been adequately examined in the literature due to the absence of suitable assessment strategies. We thus recently developed a computerized real-life activity task designed to take into account the complex and multitasking nature of certain everyday life activities where participants are required to prepare a room for a meeting. Twenty-one individuals diagnosed with schizophrenia and 20 matched healthy controls completed the computerized task. Patients were also evaluated with a cognitive battery, measures of symptomatology and real world functioning. To examine the ecological validity, 14 other patients were recruited and were given the computerized version and a real version of the meeting preparation task. Results showed that performance on the computerized task was significantly correlated with executive functioning, pointing to the major implication of these cognitive processes in multitasking situations. Performance on the computerized task also significantly predicted up to 50% of real world functioning. Moreover, the computerized task demonstrated good ecological validity. These findings suggest the importance of evaluating multitasking capacities in patients diagnosed with schizophrenia in order to predict real world functioning.
Cognitive defi cits are clearly associated with poor everyday life functioning in persons diagnosed with schizophrenia. However, previous studies have primarily used questionnaires to assess everyday life functioning. We developed a computerized real-life activity task (shopping task), where participants are required to shop for a list of seven grocery store items. Thirty individuals diagnosed with schizophrenia and 30 healthy controls were administered an extensive battery of cognitive tests and the computerized shopping task. Performances on the computerized shopping task signifi cantly differentiated patients and healthy controls for several variables. Moreover, performance on the shopping task was signifi cantly correlated with verbal episodic memory, cognitive fl exibility, planning, processing speed, and inhibition. Finally, performance on the computerized shopping task was signifi cantly correlated with various clinical variables and with a global measure of social functioning. These fi ndings suggest that the computerized task used in the present study provides an indication of the level of everyday life functioning and cognitive functioning of persons diagnosed with schizophrenia, and, therefore, may be viewed as a valuable instrument in both an evaluation and remediation context. ( JINS , 2010, 16, 180-189.)
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