Are patients with bipolar disorder and comorbid attention‐deficit hyperactivity disorder more neurocognitively impaired?

Objective Research on neurocognitive impairment in adult patients with comorbid bipolar disorder (BD) and attention‐deficit hyperactivity disorder (ADHD) is very scarce. This study assessed the neurocognitive profile of a comorbid group (BD+ADHD) compared with that of pure BD (pBD) group, pure ADHD...

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Published in:Bipolar disorders 2017-12, Vol.19 (8), p.637-650
Main Authors: Torres, Imma, Sole, Brisa, Corrales, Montse, Jiménez, Esther, Rotger, Sofia, Serra‐Pla, Juan Francisco, Forcada, Irene, Richarte, Vanesa, Mora, Ester, Jacas, Carlos, Gómez, Nuria, Mur, Maria, Colom, Francesc, Vieta, Eduard, Casas, Miquel, Martinez‐Aran, Anabel, Goikolea, Jose M., Ramos‐Quiroga, Josep A.
Format: Article
Language:English
Subjects:
Attention deficit hyperactivity disorder
Bipolar disorder
Cognition
Cognitive ability
Comorbidity
comorbidity and neurocognition
Hyperactivity
Memory
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Summary:Objective Research on neurocognitive impairment in adult patients with comorbid bipolar disorder (BD) and attention‐deficit hyperactivity disorder (ADHD) is very scarce. This study assessed the neurocognitive profile of a comorbid group (BD+ADHD) compared with that of pure BD (pBD) group, pure ADHD (pADHD) group and healthy controls (HCs). Methods This was a three‐site study comprising 229 subjects: 70 patients with pBD, 23 with BD+ADHD, 50 with pADHD, and 86 HCs. All patients with BD had been euthymic for at least 6 months. Neuropsychological performance was assessed using a comprehensive neurocognitive battery. Results Our results showed that all the clinical groups had poorer performance than the HCs in all the neurocognitive domains except for executive functions. No significant differences were observed between the pBD and BD+ADHD groups in any of the cognitive domains, with these two groups showing greater impairment than the pADHD group in executive functions and visual memory. Conclusions Our results, although preliminary, suggest that the BD+ADHD group showed the same neurocognitive profile as pBD patients, most likely reflecting the same neurobiological basis. On the other hand, the pADHD group showed a more selective moderate impairment in attention.
ISSN:1398-5647
1399-5618
DOI:10.1111/bdi.12540