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Updated: Jun 15, 2026

Dual-Task Stroop Paradigm for Detecting Cognitive Deficits in High-Functioning Stroke Patients
07:42

Dual-Task Stroop Paradigm for Detecting Cognitive Deficits in High-Functioning Stroke Patients

Published on: December 16, 2022

Discourse coherence and cognition after stroke: a dual task study.

Yvonne Rogalski1, Lori J P Altmann, Prudence Plummer-D'Amato

  • 1Department of Communicative Disorders, University of Florida, Gainesville, FL 32611, USA. rogalski@phhp.ufl.edu

Journal of Communication Disorders
|March 12, 2010
PubMed
Summary
This summary is machine-generated.

Maintaining global coherence in discourse is cognitively demanding for stroke survivors, unlike local coherence. Cognitive function significantly impacts global coherence, suggesting distinct cognitive processes support different coherence types.

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07:42

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Published on: December 16, 2022

Motor Dual-Tasks for Gait Analysis and Evaluation in Post-Stroke Patients
05:23

Motor Dual-Tasks for Gait Analysis and Evaluation in Post-Stroke Patients

Published on: March 11, 2021

Area of Science:

  • Cognitive Science
  • Neuroscience
  • Linguistics

Background:

  • Discourse coherence, both global (topic maintenance) and local (utterance-to-utterance flow), is thought to rely on cognitive resources.
  • Stroke survivors often experience cognitive impairments that may affect their ability to maintain coherence in speech.

Purpose of the Study:

  • To investigate the relationship between cognitive variables and discourse coherence in mobility-impaired stroke survivors.
  • To examine the impact of dual-tasking (talking while walking) on coherence maintenance.
  • To explore potential differences in cognitive demands between global and local coherence.

Main Methods:

  • Assessed coherence (global and local) in narrative discourse produced by stroke survivors under single-task and dual-task conditions.
  • Correlated coherence measures with cognitive function assessments.
  • Compared coherence performance between single-task (talking) and dual-task (talking and walking) conditions.

Main Results:

  • Global coherence was significantly disrupted in stroke survivors, irrespective of single or dual task conditions.
  • Global coherence strongly correlated with cognitive function measures.
  • Local coherence did not show significant disruption or correlation with cognitive measures.

Conclusions:

  • Maintaining global coherence appears more cognitively demanding than local coherence.
  • Findings suggest global and local coherence may rely on distinct cognitive processes.
  • Cognitive impairment in stroke survivors disproportionately affects global coherence maintenance.