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Gestural apraxia.

F Etcharry-Bouyx1, D Le Gall1, C Jarry2

  • 1Service de neurologie, CMRR, CHU d'Angers, 4, rue Larrey, 49933 Angers cedex 9, France; Laboratoire de psychologie des Pays-de-la-Loire, université d'Angers (EA4638), maison de la recherche germaine Tillion, 5, bis boulevard-Lavoisier, 49045 Angers cedex, France.

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|August 29, 2017
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Summary
This summary is machine-generated.

Gestural apraxia, a condition affecting skilled movements, involves complex cognitive processes. Research highlights a specific brain network involved, suggesting potential for targeted rehabilitation strategies.

Keywords:
Conceptual–production systemsGestural apraxiaMechanical knowledgeParietal lobeTool manipulation knowledge

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Area of Science:

  • Neuroscience
  • Cognitive Psychology
  • Neurology

Background:

  • Gestural apraxia was first described in 1905, with early definitions still influential yet often confusing.
  • Current understanding utilizes cognitive models focusing on production and conceptual knowledge, though underlying processes and assessment methods remain debated.

Observation:

  • Neuroimaging studies consistently reveal a left-lateralized frontoparietal network implicated in gestural apraxia.
  • Specific regions showing preferential activation include the superior parietal lobe, intraparietal sulcus, and inferior parietal cortex.

Findings:

  • The precise cognitive mechanisms underlying gestural apraxia are still under active investigation.
  • Optimal methods for assessing the cognitive components of apraxia require further research and consensus.

Implications:

  • The prevalence of apraxia following stroke is significant, warranting dedicated rehabilitation efforts.
  • Understanding the neural basis of gestural apraxia can inform the development of more effective therapeutic interventions.