Cognitive performances associate with measures of white matter integrity in bipolar disorder
| Autor: | Clara Locatelli, Enrico Smeraldi, Cristina Colombo, Elena Mazza, Irene Bollettini, Sara Poletti, Daniele Radaelli, Benedetta Vai, Francesco Benedetti |
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| Přispěvatelé: | Benedetti, Francesco, Poletti, Sara, Bollettini, I, Mazza, E, Locatelli, C, Radaelli, D, Vai, B, Smeraldi, E, Colombo, CRISTINA ANNA |
| Rok vydání: | 2015 |
| Předmět: |
Adult
Male medicine.medical_specialty Bipolar Disorder Bipolar disorder Neuroimaging White matter integrity Audiology behavioral disciplines and activities Corpus Callosum Executive Function Cognition Executive function Information processing medicine Humans Verbal fluency test Cognitive Dysfunction Psychomotor coordination Working memory Neuropsychology Middle Aged medicine.disease Executive functions White Matter Psychiatry and Mental health Clinical Psychology Memory Short-Term Schizophrenia Female Schizophrenic Psychology Nerve Net Verbal memory Psychology Neurocognitive Psychomotor Performance Cognitive psychology |
| Zdroj: | Journal of Affective Disorders. 174:342-352 |
| ISSN: | 0165-0327 |
| DOI: | 10.1016/j.jad.2014.12.030 |
| Popis: | Background: Neuropsychological deficits constitute enduring trait-like features in bipolar disorder (BD), and persist in euthymia. White matter (WM) abnormalities are one of the most consistently reported findings in neuroimaging studies of BD. We hypothesized that neuropsychological performances could correlate with WM integrity in a sample of bipolar patients in core WM tracts. Methods: Seventy-eight patients affected by BD were evaluated for verbal memory, working memory, psychomotor coordination, executive functions, attention and information processing, and verbal fluency through the Brief Assessment of Cognition in Schizophrenia. White matter integrity was evaluated using DTI and tract-based spatial statistics with threshold free cluster enhancement (p>0.949). Results: We observed that cognitive performances in attention and information processing, working memory, executive functions and psychomotor coordination were associated with DTI measures of WM integrity in several association fibres: inferior and superior longitudinal fasciculus, inferior fronto-occipital fasciculus, cingulum bundle, corpus callosum, and corona radiata. Limitation: The drug treatments administered during the course of the illness could have influenced DTI measures and neurocognitive function. Other limitations include issues such as generalizability due to the lack of a control group, possible undetected past comorbidities, population stratification, and the presence of a 28% of patients which previously experienced delusions. Conclusions: This is the first study to use a validated cognitive battery to investigate the principal cognitive domains in BD. Our data confirm the importance of WM integrity as a neurobiological underpinning of cognitive deficits. |
| Databáze: | OpenAIRE |
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