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The Multiple Sclerosis Performance Test MSPT: An iPad-Based Disability Assessment Tool
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Brain connectivity and cognitive processing speed in multiple sclerosis: A systematic review.

Riccardo Manca1, Basil Sharrack2, David Paling2

  • 1Department of Neurosciences, University of Sheffield, Sheffield, UK.

Journal of the Neurological Sciences
|April 9, 2018
PubMed
Summary
This summary is machine-generated.

Processing speed decline in multiple sclerosis (MS) is linked to brain connectivity. While anterior corpus callosum integrity and frontal functional connectivity show correlations, more research is needed due to study limitations.

Keywords:
ConnectivityDTIMultiple sclerosisProcessing speedfMRI

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Area of Science:

  • Neuroscience
  • Cognitive Neurology
  • Radiology

Background:

  • Processing speed (PS) decline is a primary cognitive deficit in multiple sclerosis (MS).
  • This deficit significantly impacts patients' quality of life.
  • Neural substrates underlying PS decline in MS are not well understood.

Purpose of the Study:

  • To systematically review the literature on the relationship between PS performance and MRI measures of brain connectivity in MS.
  • To clarify the impact of structural and functional brain connectivity on PS in MS patients.

Main Methods:

  • Systematic literature search of PubMed and Web of Science up to September 2017.
  • Inclusion of articles from reference lists.
  • Categorization of studies based on MRI measures (structural/functional connectivity).
  • Quality assessment of included studies.

Main Results:

  • Thirty-two articles were included in the review.
  • Microstructural integrity of the anterior corpus callosum and frontal functional connectivity were most consistently associated with PS performance.
  • High variability in findings and methodological flaws were noted across studies.

Conclusions:

  • Current literature has limitations, preventing definitive conclusions on brain connectivity and PS decline in MS.
  • Future research requires methodological advancements to elucidate the effects of MS-related brain damage on cognition.