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Apraxia is a function of left or right parietal lobe

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apraxia dominant left parietal lobe localization

Apraxia is classically associated with the dominant parietal lobe, usually the left parietal lobe in right-handed people and most left-handed people.
  • The left inferior parietal lobule helps store and organize learned purposeful movements.
  • A left parietal lesion can cause ideomotor apraxia, affecting skilled actions of either hand, especially on command or imitation, despite normal strength and comprehension.
  • Right parietal lesions are more associated with visuospatial neglect and may cause constructional or dressing apraxia, but typical limb apraxia is predominantly left-sided.
This reflects a distributed left parietal-premotor-motor praxis network, not just one isolated cortical spot, as summarized in this review of limb apraxia.
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