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Impulsivity traits in patients with multiple sclerosis.

Jaime Toro1, Luisa Blanco2, Luis Felipe Orozco-Cabal2

  • 1Department Neurology, Hospital Universitario-Fundación Santa Fe de Bogotá, Carrera 7 No. 117-15, Bogotá, Colombia; School of Medicine, Universidad El Bosque, Carrera 7B Bis No. 132-11, Bogotá, Colombia; School of Medicine, Universidad de Los Andes, Carrera 1 No. 18A-12, Bogotá, Colombia; Multiple Sclerosis and other Neurological Disorders Research Group, Fundacion Santa Fe de Bogotá, Carrera 7 No. 117-15, Bogotá, Colombia.

Multiple Sclerosis and Related Disorders
|April 30, 2018
PubMed
Summary

Multiple sclerosis (MS) patients exhibit higher cognitive impulsivity, confirmed by objective tests. Depression can influence self-reported impulsivity scores in MS, requiring careful consideration during assessment.

Keywords:
DepressionImpulsivityMultiple sclerosisNeuropsychiatric disorders

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Area of Science:

  • Neuroscience
  • Clinical Psychology
  • Neurology

Background:

  • Multiple sclerosis (MS) is a demyelinating disease with significant neuropsychiatric comorbidities, including depression.
  • While depression in MS is well-documented, the association between MS and impulsive behavior remains less explored.

Purpose of the Study:

  • To investigate and compare levels of impulsivity in patients with multiple sclerosis (MS) versus controls.
  • To assess the influence of depression on self-reported and objectively measured impulsivity in MS.

Main Methods:

  • A cross-sectional study involving 60 MS patients and 60 matched controls.
  • Utilized the Beck Depression Inventory (BDI-SF) for depression, Barratt Impulsiveness Scale (BIS-11) for self-reported impulsivity, and Immediate and Delayed Memory Tasks (IMT-DMT) for objective impulsivity assessment.

Main Results:

  • MS patients scored significantly higher on overall and cognitive impulsivity measures (BIS-11).
  • Even after controlling for depression, MS patients showed higher cognitive impulsivity and made more errors on objective memory tasks.
  • Higher depression scores were observed in the MS group compared to controls.

Conclusions:

  • Patients with MS demonstrate elevated cognitive impulsivity compared to individuals without MS.
  • Objective measures corroborate self-reported findings, highlighting increased impulsivity in MS.
  • Depression can confound impulsivity assessments in MS, necessitating careful interpretation of results.