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Limb apraxia and the left parietal lobe
Laurel J Buxbaum1, Jennifer Randerath2
1Moss Rehabilitation Research Institute, Elkins Park, PA, United States.
Handbook of Clinical Neurology
|March 10, 2018
Summary
Limb apraxia, a disorder of skilled action, results from damage to specific brain regions. This study examines the left inferior parietal lobe's role in tool use and action, offering insights into rehabilitation strategies.
Area of Science:
- Neuroscience
- Cognitive Neurology
- Rehabilitation Medicine
Background:
- Limb apraxia is a complex disorder affecting skilled actions and tool use.
- Historically classified into subtypes like ideational and ideomotor apraxia.
- Recent research focuses on the neuroanatomy and connectivity of the left-hemisphere tool use network.
Purpose of the Study:
- To investigate the role of the left inferior parietal lobe in limb apraxia.
- To understand how damage to this region impacts tool and body representation, action prediction, and selection.
- To explore future research directions for apraxia, including rehabilitation.
Main Methods:
- Review of existing literature on limb apraxia and neuroanatomy.
- Focus on lesion studies implicating the left inferior parietal lobe.
- Analysis of functional neuroanatomy and connectivity within the tool use network.
Main Results:
- The left inferior parietal lobe is crucial for tool and body representation, action prediction, and selection.
- Lesions in this area lead to specific deficits observed in patients with limb apraxia.
- Understanding these functions provides insight into the heterogeneity of apraxia.
Conclusions:
- The left inferior parietal lobe plays a critical role in the complex network underlying skilled actions.
- Further research into the neurobiological underpinnings of apraxia is warranted.
- Rehabilitation strategies for limb apraxia require increased research attention.
Keywords:
actionaction selectionbody representationsgesturesimitationlimb apraxiaparietalpraxispredictiontool useMore Related Videos
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