Functional plasticity in the absence of structural change: Apraxia and body scheme disorder 10 years after childhood brain injury

Tal Krasovsky, Jana Landa, Orly Bar, Ahonniska Assa Jaana, Abigail Livny, Galia Tsarfaty, Tamar Silberg

Research output: Contribution to journalArticlepeer-review

Abstract

This work presents a case of a young woman with apraxia and a severe body scheme disorder, 10 years after a childhood frontal and occipitoparietal brain injury. Despite specific limitations, she is independent in performing all activities of daily living. A battery of tests was administered to evaluate praxis and body representations. Specifically, the Hand LateralityTestwas used to compare RS's dynamic body representation to that of healthy controls (N=14).Results demonstratedRS's severe praxis impairment, and theHand Laterality Test revealed deficits in accuracy and latency of motor imagery, suggesting a significant impairment in dynamic body representation. However, semantic and structural body representations were intact. These results, coupled with frequent use of verbalizations as a strategy, suggest a possible ventral compensatory mechanism (top-down processing) for dorsal stream deficits, which may explain RS's remarkable recovery of activities of daily living. The link between praxis and dynamic body representation is discussed.

Original languageEnglish
Pages (from-to)505-511
Number of pages7
JournalJournal of Child Neurology
Volume32
Issue number5
DOIs
StatePublished - Apr 2017

Bibliographical note

Publisher Copyright:
© The Author(s) 2017.

Keywords

  • Hand Laterality Test
  • Motor imagery
  • Parietal cortex
  • Rehabilitation
  • TBI

ASJC Scopus subject areas

  • Clinical Neurology
  • Pediatrics, Perinatology, and Child Health

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