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Background  Many bipolar patients (BP) are affected by cognitive impairments and reduced psychosocial function even after complete remission. In the present naturalistic study, we developed a tailored cognitive remediation program (CR) to evaluate the effect on objective and subjective neuropsychological performance, psychosocial functioning and quality of life.    Methods  The CR program used a cognitive training software combined with group sessions to educate cognitive skills. 102 BP were screened by a neuropsychological test battery. Of those, 39 BP showed distinct cognitive impairments and 26 patients of them participated in the CR program for 12 weeks and then were retested. A matched control group consisting of 10 BP was measured at baseline and follow-up after three months (treatment as usual).    Results  Within the training group, a significant improvement of cognitive performance after CR was observed in working memory ( p  = .043), problem solving ( p  = .031) and divided attention (trend,  p  = .065). The control group did not improve in any test measure. In addition, we detected a significant reduction of sub-depressive symptoms ( p  = .011) after the CR program. However, there was no change in psychosocial functioning and quality of life. Subjective cognitive complaints were not associated with objective test performance.    Limitations  As we included exclusively BP with objectively assessed neurocognitive deficits, recruitment was difficult and subsequently we had a small sample size and were not able to implement a randomized group design.    Conclusions  Our results suggest that BP with objective cognitive impairments could benefit from CR potentially with regard to executive functioning. Furthermore, there is preliminary evidence that CR could have a positive effect on subthreshold residual symptoms. However, to fully identify the possible implications of CR in bipolar disorder, larger randomized-controlled trials are needed in this new field of research.    Electronic supplementary material  The online version of this article (doi:10.1186/s40345-017-0079-3) contains supplementary material, which is available to authorized users.

Cognitive remediation for bipolar patients with objective cognitive impairment: a naturalistic study