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Updated: Nov 21, 2025

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WORD LEARNING IN APHASIA: TREATMENT IMPLICATIONS AND STRUCTURAL CONNECTIVITY ANALYSES.

Monica Coran1, Antoni Rodriguez-Fornells2,3,4, Neus Ramos-Escobar2,3

  • 1Temple University, Philadelphia, USA.

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PubMed
Summary

Novel word learning practice in individuals with aphasia may enhance language and verbal short-term memory (STM). Preservation of word learning ability is linked to the integrity of the left arcuate fasciculus (AF).

Keywords:
anomiaaphasiaaphasia treatmentarcuate fasciculusshort-term memoryword learning

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Area of Science:

  • Neuroscience
  • Cognitive Science
  • Linguistics

Background:

  • Aphasia research investigates word learning capacity.
  • Novel word learning engages cognitive-linguistic systems including language skills, verbal short-term memory (STM), and executive functions.
  • The neural correlates of word learning in aphasia, particularly the role of the arcuate fasciculus (AF), are not fully understood.

Purpose of the Study:

  • To determine if novel word learning practice can stimulate language-related systems in individuals with aphasia.
  • To examine the relationship between the structural integrity of the left arcuate fasciculus (AF) and novel word learning outcomes in aphasia.

Main Methods:

  • Three participants with aphasia underwent a 4-week explicit novel word learning task.
  • Language abilities, verbal STM, and single-session word learning were assessed pre- and post-intervention.
  • Structural MRI scans were analyzed to evaluate the integrity of the left AF and its relation to lesion areas.

Main Results:

  • All participants demonstrated some receptive word learning and improvements in verbal STM span.
  • Two participants showed enhanced performance on certain language measures.
  • One participant with a partially spared left AF exhibited superior word learning compared to others with more extensive AF damage.

Conclusions:

  • Preliminary findings suggest that novel word learning practice may activate residual word learning mechanisms in aphasia, potentially improving language and verbal STM.
  • The structural integrity of the left AF appears to be a significant factor in preserving novel word learning abilities in individuals with aphasia.