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Cognitive functioning in chronic post-stroke aphasia.

José Fonseca1, Ana Raposo2, Isabel Pavão Martins1

  • 1a Faculdade de Medicina , Universidade de Lisboa, Instituto de Medicina Molecular, Laboratório de Estudos de Linguagem , Lisbon , Portugal.

Applied Neuropsychology. Adult
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Summary
This summary is machine-generated.

Individuals with aphasia (AP) show deficits in nonverbal cognitive tests compared to controls. Cognitive performance in AP correlates with aphasia severity and comprehension, impacting memory and attention.

Keywords:
assessmentcognitionneuropsychological evaluationnonverbal evaluationphasia

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Speech and Language Pathology

Background:

  • Limited understanding of cognitive abilities in individuals with aphasia (AP).
  • Need to assess nonverbal cognitive functions in AP beyond language deficits.

Purpose of the Study:

  • To evaluate nonverbal cognitive performance in individuals with chronic aphasia (AP).
  • To examine the relationship between cognitive performance, aphasia severity, and comprehension.
  • To compare cognitive abilities between AP and control participants (CP).

Main Methods:

  • Prospective cross-sectional study design.
  • Inclusion of 48 individuals with aphasia (AP) and 32 control participants (CP).
  • Administration of 10 nonverbal cognitive tests, with scores adjusted for age and education.

Main Results:

  • Individuals with aphasia (AP) scored significantly lower than controls (CP) on most nonverbal cognitive tests.
  • AP participants performed below the normal range in tests of visual memory, immediate recall, and spatial memory.
  • Aphasia severity and verbal comprehension correlated with performance in semantic memory, constructive abilities, and attention/processing speed.

Conclusions:

  • Individuals with aphasia (AP) exhibit impairments in nonverbal cognitive functions, even when tests are not language-dependent.
  • Cognitive deficits in AP are linked to the severity of the language disorder and comprehension abilities.
  • Findings highlight the importance of assessing nonverbal cognition in individuals with aphasia for comprehensive rehabilitation planning.