Approaches to cognitive remediation have differed across studies. Most of the larger studies have concentrated on group treatments designed without the benefit of recent laboratory-based studies. The current study describes a randomized trial of an intensive cognitive remediation program involving individual daily sessions of 1 hour for up to 3 months. It targets executive functioning deficits (cognitive flexibility, working memory, and planning) that are known to be problematic in people with schizophrenia. Procedural learning, as well as the principles of errorless learning, targeted reinforcement, and massed practice, was the basis of the intervention. The program was compared with an alternative therapy (intensive occupational therapy) to control for some of the effects of therapeutic contact. Some improvements in cognition followed both therapies. A differential effect in favor of cognitive remediation therapy was found for tests in the cognitive flexibility and the memory subgroups. There was a trend for those receiving atypical antipsychotic medication to benefit more from cognitive remediation for tests of cognitive flexibility. Although there were no consistent changes in symptoms or social functioning between groups, if improvement in cognitive flexibility tasks reached a threshold then there is some evidence that social functioning improved, even over the short duration of the trial. In addition, cognitive remediation differentially improved self-esteem. This study supports the view that cognitive remediation can reduce cognitive deficits and that this reduction may affect social outcome, at least in the short term.
People with emotional disorders, such as social anxiety disorder (SAD), generalized anxiety disorder (GAD), and depression, demonstrate a consistent tendency, or bias, to generate negative interpretations of ambiguous material. This is different from people without emotional disorders who tend, in general, to make positive interpretations of ambiguity. If central components of an emotional disorder have high levels of inherent ambiguity (e.g., concern about the negative perceptions of others in SAD, or worry in GAD), then interpretive bias may have a causal maintaining role, and this has been demonstrated in studies using cognitive bias modification techniques. This research has also shown that interpretation biases combine with other cognitive processes, such as imagery and memory, which could exacerbate distress. Psychological interventions will benefit from effectively targeting negative interpretations, and future experimental research can inform ways to improve facilitation of more benign inferential processing to maximize amelioration of key components of emotional disorders.
Cognitive remediation therapy is associated with durable improvements in memory, which in turn are associated with social functioning improvements in people with severe mental illness.
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