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Studies of neurocognitive function in patients with schizophrenia use widely variable assessment techniques. Clinical trials assessing the cognitive enhancing effect of new medications have used neurocognitive assessment batteries that differed in content, length and administration procedures. The Brief Assessment of Cognition in Schizophrenia (BACS) is a(More)
OBJECTIVE Interview-based measures of cognition may serve as potential coprimary measures in clinical trials of cognitive-enhancing drugs for schizophrenia. However, there is no such valid scale available. Interviews of patients and their clinicians are not valid in that they are unrelated to patients' levels of cognitive impairment as assessed by cognitive(More)
The Brief Assessment of Cognition in Schizophrenia (BACS) assesses five different domains of cognitive function with six tests, and takes about 30-35 minutes to complete in patients with schizophrenia. Previous work has demonstrated the reliability of this measure, and its sensitivity to the deficits of schizophrenia. However, the relationship of this brief(More)
BACKGROUND Although cognitive impairment is described as a core component of the characterization of schizophrenia, a sizable percentage of patients are classified as unimpaired by traditional definitions of impairment. The purpose of this study was to determine the percentage of patients with schizophrenia meeting criteria for a "cognitive function(More)
RATIONALE The absence of a relationship between cognitive deficit treatment response and positive symptom treatment response is often assumed, and few data have shed light on this issue. Most of these data have been collected using standard neuropsychological measures, which are ill-designed to assess the types of neurocognitive disturbances associated with(More)
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