The relationship between executive functions and fluid intelligence in euthymic Bipolar Disorder patients

Belén Goitia, Facundo Manes, Teresa Torralva, Mariano Sigman, John Duncan, Marcelo Cetkovich, María Roca*

*Corresponding author for this work

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Distinct cognitive deficits have been described in Bipolar disorder (BD), including executive impairments, commonly attributed to frontal dysfunction. However, recent attention has been paid to the heterogeneity of cognitive functioning in this population, suggesting that the executive deficits observed in BD might be due to a loss in fluid intelligence (g). Following our previous line of investigation in multiple neurological and psychiatric conditions we aimed at determining the role of g in frontal deficits in BD. Euthymic BD patients (n = 51) and healthy controls (n = 37) were assessed with Wisconsin Card Sorting Test (WCST), Verbal Fluency, Trail Making Test B (TMTB), a multitasking test, and a theory of mind test. A general cognitive battery was used to derive a measure of g. As in other neuropsychiatric conditions, significant patient-control differences in WCST, Verbal Fluency and TMTB were removed when g was introduced as a covariate. Deficits remained significant in the multitasking test. We suggest that neuropsychological assessment in BD should include tests of general intelligence, together with one or more specific tasks that allow for the assessment of residual frontal deficits, putatively associated with anterior frontal functioning.

Original languageEnglish
Pages (from-to)346-351
Number of pages6
JournalPsychiatry Research
Volume257
DOIs
Publication statusPublished - 1 Nov 2017
Externally publishedYes

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Keywords

  • Spearman's g
  • frontal deficits
  • multitasking
  • theory of mind

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