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Related Experiment Video

Updated: Feb 17, 2026

Compensatory Limb Use and Behavioral Assessment of Motor Skill Learning Following Sensorimotor Cortex Injury in a Mouse Model of Ischemic Stroke
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Compensatory Limb Use and Behavioral Assessment of Motor Skill Learning Following Sensorimotor Cortex Injury in a Mouse Model of Ischemic Stroke

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Limb apraxia in aphasic patients.

Karin Zazo Ortiz1, Joana Mantovani-Nagaoka1

  • 1Universidade Federal de São Paulo, Departamento de Fonoaudiologia, São Paulo SP, Brasil.

Arquivos De Neuro-Psiquiatria
|December 14, 2017
PubMed
Summary

This study found that aphasic patients often exhibit limb apraxia, particularly with conceptual gesture tasks. Pantomime difficulties in these patients can predict semantic disturbances.

Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Neurolinguistics

Background:

  • Limb apraxia is frequently linked to left cerebral hemisphere damage.
  • Previous studies often involved aphasic patients, suggesting a connection.

Purpose of the Study:

  • To confirm the presence of limb apraxia in aphasic individuals.
  • To analyze the specific characteristics and nature of limb apraxia in this population.

Main Methods:

  • A limb apraxia battery was administered to 28 aphasic patients and 44 healthy controls.
  • The battery included subtests assessing comprehension/production of gestures and motor movements.
  • Lexical-semantic aspects of gestures were evaluated.

Main Results:

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  • Aphasic patients demonstrated poorer performance on tasks involving conceptual components of gestures.
  • Difficulties in imitating dynamic gestures indicated motor planning deficits.
  • Impaired pantomime performance was a significant predictor of semantic disturbances.

Conclusions:

  • Limb apraxia assessment is crucial for aphasic patients.
  • Pantomime difficulties serve as a valuable indicator of underlying semantic processing issues in aphasia.