Verbal fluency in bipolar disorders: A systematic review and meta-analysis

Raucher‐Chéné, Delphine; Achim, Amélie M.; Kaladjian, Arthur; Besche‐Richard, Chrystel

doi:10.1016/j.jad.2016.09.039

Cited by 75 publications

(65 citation statements)

References 82 publications

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“…These deficits do not necessarily depend on the mood state 11,12 and mainly regard the domains of memory, [13][14][15][16][17][18] attention, 14,[19][20][21] executive functions, [22][23][24][25] and language. 26 However, few studies have directly compared the cognitive profiles of patients with MDD with those of BD patients. 18 In addition, these studies included patients regardless of illness phase and produced conflicting evidence, showing, in some cases, different cognitive alteration profiles between unipolar and bipolar patients (in terms of both expression and severity), and overlapping deficits in other cases.…”

Section: Introductionmentioning

confidence: 99%

Using network analysis to explore cognitive domains in patients with unipolar versus bipolar depression: a prospective naturalistic study

Galimberti¹,

Bosi

Caricasole

et al. 2019

CNS Spectr.

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Objective: Despite growing evidence in the field of cognitive function in mood disorders, the neurocognitive profiles of patients with unipolar and bipolar depression still need further characterization. In this study, we applied network analysis, hypothesizing this approach could highlight differences between Major Depressive Disorder (MDD) and Bipolar Disorder (BD) from a cognitive perspective. Methods: The cognitive performance of 109 patients (72 unipolar and 37 bipolar depressed outpatients) was assessed through the Montreal Cognitive Assessment (MoCA) and a series of clinical variables was collected. Differences in cognitive performance between MDD and BD patients were tested using non parametric tests. Moreover, a network graph representing MoCA domains as nodes and Spearman's rho correlation coefficients between the domains as edges was constructed for each group. Results: The presence of mild cognitive impairment was observed both in MDD and BD patients during depression. No statistical significant difference was found between the two groups in terms of overall cognitive performance and across single domains. Nonetheless, network analytic metrics demonstrated different roles of memory and executive dysfunction in MDD vs BD patients: in particular, MDD network was more densely interconnected than BD network and memory was the node with the highest betweenness and closeness centrality in MDD, while executive function was more central in BD. Conclusions:From a network analytic perspective, memory impairment displays a central role in the cognitive impairment of patients with unipolar depression, whereas executive dysfunction appears to be more central in bipolar depression. Further research is warranted to confirm our results.

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Section: Introductionmentioning

confidence: 99%

Using network analysis to explore cognitive domains in patients with unipolar versus bipolar depression: a prospective naturalistic study

Galimberti¹,

Bosi

Caricasole

et al. 2019

CNS Spectr.

View full text Add to dashboard Cite

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“…More recently, some studies using meta-analytical methodology addressed specific cognitive deficit in the bipolar patient as in theory of mind (Bora et al, 2016), social cognition (Samamé et al, 2015), and verbal fluency (Raucher-Chéné et al, 2017). Nonetheless, we did not found studies focusing in working memory deficits in bipolar disorder patients.…”

Section: Introductionmentioning

confidence: 99%

Disentangling Working Memory Functioning in Mood States of Bipolar Disorder: A Systematic Review

et al. 2017

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Working memory (WM) deficits are often reported in patients with Bipolar Disorder (BD). However, it is not clear about the nature of these WM deficits (update or serial order processes) and their association with each BD states (euthymic, mania, and depressive). This review investigated the association between BD patient's states and the functioning of WM components. For this purpose, we carried out a systematic review fulfilling a search in the databases Medline, Scopus, SciELO, and Web of Science using specific terms in the abstracts of the articles that generated 212 outcomes in the restricted period from 2005 to 2016. Twenty-three papers were selected, completely read, and analyzed using PICOS strategy. The mood episodes predicted deficits in different components of WM in BD patients (the phonological loop or visuospatial sketchpad) and were associated with different WM processes (updating and serial recall). Lower cognitive scores persist even in remission of symptoms. This result suggests that WM deficit apparently is stage-independent in BD patients. Furthermore, findings suggest that the neutral point on Hedonic Detector component of WM could be maladjusted by BD.

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“…Performances in VF tasks are classically used as objective measurements of verbal capacities (semantic or lexical storage in long‐term memory) through the total number of correct words produced by the patient in determined conditions, which consist of generating words either beginning with a given letter (lexical fluency) or belonging to a semantic category (semantic fluency) . Recent meta‐analyses evidence a deficit in VF for UD and BD patients but the performance profile is not the same in the subgroups. Whereas this potential difference has so far received little attention, this comparison is interesting for the distinction of relevant markers in BD and UD .…”

mentioning

confidence: 99%

Cognitive component of psychomotor retardation in unipolar and bipolar depression: Is verbal fluency a relevant marker? Impact of repetitive transcranial stimulation

Thomas-Ollivier

Foyer

Bulteau

et al. 2017

Psychiatry Clin Neurosci

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Verbal fluency in bipolar disorders: A systematic review and meta-analysis

Cited by 75 publications

References 82 publications

Using network analysis to explore cognitive domains in patients with unipolar versus bipolar depression: a prospective naturalistic study

Using network analysis to explore cognitive domains in patients with unipolar versus bipolar depression: a prospective naturalistic study

Disentangling Working Memory Functioning in Mood States of Bipolar Disorder: A Systematic Review

Cognitive component of psychomotor retardation in unipolar and bipolar depression: Is verbal fluency a relevant marker? Impact of repetitive transcranial stimulation

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