Cited by 102Bipolar Disorder and TreatmentSchizophrenia research and treatmentAdvanced Neuroimaging Techniques and Applications

Cognitive performances associate with measures of white matter integrity in bipolar disorder

Poletti, Sara, Bollettini, Irene, Mazza, Elena, Locatelli, Clara, Radaelli, Daniele, Vai, Benedetta, Smeraldi, Enrico, Colombo, Cristina +1 more·2015·Journal of Affective Disorders

Abstract

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.

Integrity signals

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Crossref · 10.1016/j.jad.2014.12.030

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  • Correlations between executive functions and cingulum white matter properties have been reported in depression, bipolar disorder, and schizophrenia.

    “This overall pattern is continued in clinical brain imaging studies as correlations between executive functions and cingulum white matter properties have been reported in depression (with DTI in Schermuly et al., 2010), in bipolar disorder (with DTI in Poletti et al., 2015; with Positron Emission Tomography in Li et al., 2012), and schizophrenia (with DTI in Kubicki et al., 2009; Takei et al., 200”

    From The cingulum bundle: Anatomy, function, and dysfunction (2018) · cites this paper as Poletti et al., 2015

  • The white matter phenotype is associated with neurocognitive dysfunctions.

    “We also associated this WM phenotype with neurocognitive dysfunctions (Poletti et al., 2015)”

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Authors
Poletti, S., Bollettini, I., Mazza, E., Locatelli, C., Radaelli, D., Vai, B., Smeraldi, E., Colombo, C., & Benedetti, F.
Affiliations
Vita-Salute San Raffaele University (IT)
Venue
Journal of Affective Disorders
Publisher
Elsevier BV
Published
2015-03
Volume
174
Pages
342-352
ISSN
0165-0327 (ISSN-L)
OpenAlex
W1979165638
Cited by
102
References
90
Citations by year
2026: 6 · 2025: 9 · 2024: 10 · 2023: 6 · 2022: 5 · 2021: 11 · 2020: 6 · 2019: 9 · 2018: 7 · 2017: 10 · 2016: 16 · 2015: 6
FWCI
8.14
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Affective Disorders (publishedVersion)
  • PubMed (publishedVersion)
  • Archivio Istituzionale della Ricerca - Università Vita-Salute San Raffaele (submittedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Advanced Neuroimaging Techniques and Applications
Keywords
bipolar disorder, white matter integrity, cognitive impairment, neuropsychological performance, diffusion tensor imaging, working memory, executive function, attention, psychomotor coordination, longitudinal fasciculus, inferior fronto-occipital fasciculus, cingulum, corpus callosum, corona radiata, Brief Assessment of Cognition in Schizophrenia
MeSH terms
Adult, Bipolar Disorder, Cognition, Corpus Callosum, Female, Humans, Male, Memory, Short-Term, Middle Aged, Nerve Net, Psychomotor Performance, Schizophrenia, Schizophrenic Psychology, Executive Function, Neuroimaging, Cognitive Dysfunction, White Matter

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