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Related Experiment Videos

Variability in aphasic patients' response times.

Miguel A Moreno1, Lori Buchanan, Guy C Van Orden

  • 1Cognitive Systems Group, Arizona State University, Tempe, USA. lori.buchanan@ualberta.ca

Brain and Cognition
|May 28, 2002
PubMed
Summary
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Variability in response times for acquired language disorders can offer valuable insights. Analyzing within-patient variability in lexical decision tasks may estimate cognitive dynamics stability.

Area of Science:

  • Neuroscience
  • Psycholinguistics
  • Cognitive Science

Background:

  • Response time studies in acquired language disorders often show significant patient variability.
  • This variability has traditionally been viewed as noise, complicating data interpretation.

Purpose of the Study:

  • To demonstrate that response time variability itself can yield informative data.
  • To explore the potential of within-patient variability as a measure of cognitive stability in acquired language disorders.

Main Methods:

  • Collected lexical decision response times from nine patients with acquired language disorders.
  • Analyzed the within-patient variability of these response times.

Main Results:

  • Within-patient variability in lexical decision response times was found to be informative.

Related Experiment Videos

  • This variability can serve as an indicator for the stability of cognitive dynamics.

    • Conclusions:

    • Response time variability in acquired language disorders is not merely noise but a source of data.
    • Within-patient variability offers a novel approach to estimating cognitive dynamics stability in affected individuals.