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.
Bibliographical notePublisher Copyright:
© The Author(s) 2017.
- Hand Laterality Test
- Motor imagery
- Parietal cortex
ASJC Scopus subject areas
- Clinical Neurology
- Pediatrics, Perinatology, and Child Health