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The Multiple Sclerosis Performance Test MSPT: An iPad-Based Disability Assessment Tool
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[Information processing speed and influential factors in multiple sclerosis].

M L Zhang1, E H Xu, H Q Dong

  • 1Department of Neurology, Xuanwu Hospital, Capital Medical University, Beijing 100053, China.

Zhonghua Yi Xue Za Zhi
|April 28, 2016
PubMed
Summary
This summary is machine-generated.

Multiple sclerosis (MS) patients show impaired information processing speed and cognitive deficits, particularly those with secondary progressive MS (SPMS). Factors like age, depression, and disability significantly impact processing speed.

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Area of Science:

  • Neuroscience
  • Clinical Neurology

Background:

  • Multiple sclerosis (MS) is a chronic neurological disease affecting cognitive functions.
  • Information processing speed (IPS) is a key cognitive domain impacted in MS patients.

Purpose of the Study:

  • To investigate information processing speed (IPS) and its influencing factors in patients with multiple sclerosis (MS).
  • To compare cognitive performance between relapsing-remitting MS (RRMS), secondary progressive MS (SPMS) subtypes, and healthy controls.

Main Methods:

  • Cross-sectional study involving 36 RRMS, 21 SPMS patients, and 50 healthy controls.
  • Neuropsychological tests assessed IPS, memory, executive functions, language, and visual perception.
  • Correlations between IPS and depression, fatigue, and Expanded Disability Status Scale (EDSS) were analyzed.

Main Results:

  • MS patients exhibited significant cognitive deficits compared to controls, with notable impairments in the Symbol Digit Modalities Test (SDMT) and Paced Auditory Serial Addition Task (PASAT).
  • SPMS patients showed more severe deficits than RRMS patients, with differences partially explained by physical disability (EDSS).
  • Age, depression, EDSS scores, and fatigue were negatively correlated with IPS (SDMT and PASAT).

Conclusions:

  • Information processing speed, verbal memory, and executive functions are impaired in MS patients, especially in the SPMS subtype.
  • Visual-spatial function appears relatively preserved in MS patients.
  • Age, white matter changes, EDSS scores, and depression are significant negative predictors of information processing speed in MS.