Executive functions in schizophrenia
نویسندگان
چکیده
منابع مشابه
Neural correlates of set-shifting: decomposing executive functions in schizophrenia.
BACKGROUND Although there is considerable evidence that patients with schizophrenia have impaired executive functions, the neural mechanisms underlying these deficits are unclear. Generation and selection is one of the basic mechanisms of executive functioning. We investigated the neural correlates of this mechanism by means of functional magnetic resonance imaging (fMRI) in patients with schiz...
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An enduring question is unity vs. separability of executive deficits resulting from impaired frontal lobe function. In previous studies, we have asked how executive deficits link to a conventional measure of fluid intelligence, obtained either by standard tests of novel problem-solving, or by averaging performance in a battery of novel tasks. For some classical executive tasks, such as the Wisc...
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The executive function (EF) is a set of abilities, which allows us to invoke voluntary control of our behavioral responses. These functions enable human beings to develop and carry out plans, make up analogies, obey social rules, solve problems, adapt to unexpected circumstances, do many tasks simultaneously, and locate episodes in time and place. EF includes divided attention and sustained att...
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A study of frontal/executive impairments in schizophrenia is reported. Schizophrenia patients and controls were not significantly different with respect to age, sex, and premorbid IQ. The schizophrenia group demonstrated significant impairments in cognitive flexibility and forward planning, replicating results from a 1990 study by Morice. Impairment prevalence figures of 65 and 76 percent for c...
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Introduction: Executive functions refer to the use of cognitive processes to control thoughts and emotions. The purpose of this study was to compare the executive functions in premature and normal children. Methods: The present study is a causal comparative study. The statistical population of this study was Tabriz Premature Children that 30 of these children were selected by using available sa...
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ژورنال
عنوان ژورنال: Indian Journal of Psychiatry
سال: 2005
ISSN: 0019-5545
DOI: 10.4103/0019-5545.46069