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Related Concept Videos

Multiple Sclerosis l: Introduction01:19

Multiple Sclerosis l: Introduction

Multiple sclerosis is a chronic autoimmune disease of the central nervous system (CNS) that affects the brain, spinal cord, and optic nerves. It is an inflammatory demyelinating disorder and a leading cause of neurological disability in young adults.EpidemiologyMS commonly begins between 20 and 40 years of age and is twice as common in women. Its exact cause remains unclear, but genetic susceptibility contributes, with higher risk in first-degree relatives and identical twins. A greater...
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Attention Network Test reveals alerting network dysfunction in multiple sclerosis.

Carsten Urbanek1, Nicholetta Weinges-Evers, Judith Bellmann-Strobl

  • 1Department of Psychiatry and Psychotherapy, Campus Benjamin Franklin, Charité University Medicine Berlin, Berlin, Germany.

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|December 10, 2009
PubMed
Summary
This summary is machine-generated.

Multiple sclerosis patients show specific attention deficits, particularly in the alerting network, impacting cognitive function. The Attention Network Test reveals these alterations are not solely due to general cognitive slowing.

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Clinical Neurology

Background:

  • Attention is frequently impaired in multiple sclerosis (MS).
  • The Attention Network Test (ANT) assesses alerting, orienting, and executive control networks.
  • ANT has not been previously applied to MS.

Purpose of the Study:

  • To investigate attentional network functions in MS using the ANT.
  • To identify specific network alterations in MS patients.

Main Methods:

  • 57 relapsing-remitting MS patients and 57 matched healthy controls completed the ANT.
  • Comparison of ANT performance between MS patients and controls.

Main Results:

  • MS patients exhibited significant deficits in the alerting network (p = 0.003).
  • No significant differences were found in orienting (p = 0.696) or conflict (p = 0.114) networks.
  • MS patients had longer mean reaction times (p = 0.032) and showed less benefit from alerting cues for conflict resolution.

Conclusions:

  • The ANT identified specific alterations in MS attentional networks, primarily affecting alerting.
  • These findings suggest MS-related attention deficits are not solely explained by overall cognitive slowing.