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Related Concept Videos

Information Processing Approach01:30

Information Processing Approach

The information-processing theory of cognitive development centers on fundamental mental processes, including attention, memory, and problem-solving skills. Researchers in this field examine how cognitive abilities, such as working memory, evolve and influence children's overall development. Studies indicate that children with stronger working memory tend to excel in reading comprehension, math, and problem-solving compared to peers with less efficient memory skills. Low working memory is also...
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Working memory refers to a combination of components, including short-term memory and attention, that allow an individual to hold information temporarily as we perform cognitive tasks. It is an essential cognitive function that enables the execution of complex tasks such as problem-solving, comprehension, and reasoning. Unlike short-term memory, which simply involves the storage of information for a brief period, working memory involves the active manipulation and processing of this information.
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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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Eye-Tracking Control to Assess Cognitive Functions in Patients with Amyotrophic Lateral Sclerosis
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Published on: October 13, 2016

Examining the link between information processing speed and executive functioning in multiple sclerosis.

Margaret A Drew1, Nicola J Starkey, Robert B Isler

  • 1Department of Psychology, University of Waikato, Hamilton, New Zealand.

Archives of Clinical Neuropsychology : the Official Journal of the National Academy of Neuropsychologists
|April 28, 2009
PubMed
Summary
This summary is machine-generated.

Information processing speed (IPS) and executive functions are often impaired in multiple sclerosis (MS). This study found IPS is linked to working memory, suggesting IPS is not a single entity in MS patients.

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Clinical Neurology

Background:

  • Slowed information processing speed (IPS) is a common symptom in multiple sclerosis (MS).
  • Executive functioning deficits are also prevalent in MS, affecting at least 20% of patients.
  • The relationship between IPS and executive functioning in MS has not been previously investigated.

Purpose of the Study:

  • To examine the relationship between information processing speed (IPS) and executive functioning in individuals with multiple sclerosis (MS).
  • To determine if specific components of IPS correlate with different aspects of executive function and working memory.

Main Methods:

  • Ninety participants diagnosed with MS were assessed using the Sternberg Memory Scanning Test, Processing Speed Index (WAIS-III), Delis Kaplan Executive Function System (D.KEFS), and Working Memory Index (WMS-III).
  • Performance metrics included initial response speed, memory scanning speed, and scores on executive function and working memory tasks.
  • Statistical analyses were performed to identify correlations between IPS measures and executive functioning/working memory performance.

Main Results:

  • Participants with MS demonstrated significantly slower performance on the Processing Speed Index (PSI) compared to normative data.
  • No significant deficits were found in memory scanning speed.
  • Initial response speed on the Sternberg task and PSI scores correlated more strongly with performance on timed, high-demand D.KEFS tasks (e.g., switching tasks).
  • Memory scanning speed showed a significant relationship with working memory performance.

Conclusions:

  • This study highlights a significant link between information processing speed (IPS) and working memory in individuals with multiple sclerosis (MS).
  • The findings suggest that IPS is a multifaceted construct, not a unitary measure, in the context of MS.
  • Differentiating components of IPS, such as initial response speed versus memory scanning speed, is crucial for understanding cognitive deficits in MS.