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Si us plau utilitzeu sempre aquest identificador per citar o enllaçar aquest document: https://hdl.handle.net/2445/218169
Neuropsychological functioning of patients with major depression or bipolar disorder comorbid to substance use disorders: a systematic review
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Major depression disorder (MDD) and bipolar disorder (BD) are usual comorbidities in patients with substance use disorders (SUD), a condition known as dual disorder (DD). MDD, BD and SUD are associated with cognitive impairment, potentially leading to a greater functional impair- ment in the context of DD. Objectives: To review the existing data on the cognitive impairment in DD patients with comorbid MDD or BD, considering the influence of the depressive symp- tomatology. Methods: Following the PRISMA protocol 19 studies were selected from the last 17 years, 13 of which focused on BD, five on MDD and one included both diagnoses. Results: Studies based in BD + SUD showed that the most affected cognitive domains were attention and executive functions, but not all of them found a greater impairment due to the comorbidity. While fewer studies were found for depression, MDD + SUD works point to a similar impairment cognitive pattern. Furthermore, depression improvement could be associated to better cognitive performance . Limitations: More standardized research is needed regarding the influence of depression on cognitive performance of DD patients, especially on those with comorbid MDD. Factors such as main substance, abstinence, or MDD/BD-related variables should be considered. Unstudied factors, like gender or circadian rhythms, are proposed to improve knowledge in this area. Conclusions: Current studies suggest that DD could potentiate cognitive impairment in BD, MDD and SUD. However, additional research is needed to improve the understanding of comorbidity to apply more individualized therapies in the treatment of these patients, considering the interference of their neurocognitive functioning.
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MIGUEL, Nuria, MARQUEZ ARRICO, Julia e., JÓDAR VICENTE, Mercè, NAVARRO, José francisco, ADAN PUIG, Ana. Neuropsychological functioning of patients with major depression or bipolar disorder comorbid to substance use disorders: a systematic review. _European Neuropsychopharmacology_. 2023. Vol. 75, núm. 41-58. [consulta: 23 de gener de 2026]. ISSN: 0924-977X. [Disponible a: https://hdl.handle.net/2445/218169]