Depression symptoms and cognition in multiple sclerosis: Longitudinal evidence of a specific link to executive control.
Mult Scler
; 29(13): 1632-1645, 2023 Nov.
Article
em En
| MEDLINE
| ID: mdl-37772495
ABSTRACT
BACKGROUND:
Depression symptoms are prevalent in multiple sclerosis (MS) and associated with poorer cognition in cross-sectional studies; it is unknown whether changes in depression symptoms track with cognitive changes longitudinally.OBJECTIVE:
Investigate whether changes in depression symptoms correspond with cognitive changes over time in MS, and identify specific cognitive functions related to depression symptoms.METHOD:
Persons with early relapse-onset MS (n = 165) completed a depression questionnaire (Beck Depression Inventory FastScreen) and tests of cognitive speed, executive control, and memory at baseline and 3-year follow-up. One-way ANOVAs assessed differences in cognitive change across participants with worsened, stable, or improved depression symptoms from baseline to year 3.RESULTS:
Change in depression symptoms was related to change in executive control (p = 0.001, ηp2 = 0.08; worsened mood with worsened executive control; improved mood with improved executive control), even when adjusting for cognitive speed (p = 0.002, ηp2 = 0.08). There were no links to cognitive speed (p = 0.826) or memory (p = 0.243). Regarding individual depression symptoms, executive control was related to loss of pleasure and suicidal thoughts.CONCLUSIONS:
Executive control tracks with depression symptoms, raising hope that management of mood may improve executive control. The specific link between executive control and anhedonia implicates dysfunctional reward processing as a key component of MS depression.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Função Executiva
/
Esclerose Múltipla
Tipo de estudo:
Diagnostic_studies
/
Observational_studies
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Risk_factors_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article