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Related Concept Videos

Working Memory01:24

Working Memory

84
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...
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Higher Mental Functions of the Brain: Language01:10

Higher Mental Functions of the Brain: Language

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Language is a system of communication that allows the expression of thoughts, ideas, and feelings. The brain processes language in both hemispheres.
Language formation and comprehension take place in the dominant hemisphere. The dominant hemisphere is responsible for understanding the meaning of spoken, written, or sign language, as well as the ability to communicate. For most people, the left hemisphere is the dominant one. The right hemisphere, then, gives tone and emotional context to the...
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Non-Verbal Working Memory in Post-Stroke Motor Aphasia: A Pilot Study Using the Tactual Span.

Eyal Heled1,2, Ohad Levi1, Elana Strobinsky1

  • 1Department of Psychology, Ariel University, Ariel 40700, Israel.

Neurology International
|April 25, 2025
PubMed
Summary
This summary is machine-generated.

Patients with motor aphasia after stroke show impairments in non-verbal working memory (WM), affecting both tactile and visuospatial skills similarly. The Tactual Span task shows promise as a clinical tool for assessing WM in these patients.

Keywords:
Tactual Spanaphasiaspan taskstrokeworking memory

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Clinical Neurology

Background:

  • Working memory (WM) deficits are common after left-hemisphere ischemic stroke, particularly in motor aphasia.
  • Research on non-verbal WM, including visuospatial and tactile modalities, is limited in motor aphasia.
  • Non-verbal assessment tools are crucial for evaluating WM in aphasia due to language impairments.

Purpose of the Study:

  • To compare tactile and visuospatial WM performance in post-stroke motor aphasia patients.
  • To validate the one-hand Tactual Span task as a clinical measure for WM assessment.
  • To investigate the relationship between tactile and visuospatial WM in this population.

Main Methods:

  • A cohort of 29 participants (14 with motor aphasia, 15 controls) underwent cognitive testing.
  • Tests included Raven's Colored Progressive Matrices, Visuospatial Span, Tactual Span, and a visual 1-Back task.
  • The one-hand version of the Tactual Span task was specifically evaluated for clinical utility.

Main Results:

  • The aphasia group exhibited significantly lower performance on all WM tasks compared to controls.
  • The Tactual Span task demonstrated high sensitivity (92.9%) and moderate specificity (66.7%) in discriminating between groups.
  • The Tactual Span task showed potential as a clinical tool, with specific cut-off scores and AUC values for forward and backward stages.

Conclusions:

  • Non-verbal WM impairments in post-stroke motor aphasia appear to affect tactile and visuospatial modalities similarly.
  • The Tactual Span task is sensitive to left-hemisphere stroke damage.
  • The Tactual Span task holds promise as a valuable clinical tool for assessing WM in motor aphasia patients.