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Diagonistic [corrected] Apraxia and Ictal Alien Hand
Sadanandvalli Retnaswami Chandra1, Karu Venkata Ravi Teja2, Roopa Sheshadri3
1Department of Neurology, Neurocentre, Faculty Block, National Institute of Mental Health and Neurosciences, Bengaluru, Karnataka, India.
Indian Journal of Psychological Medicine
|June 8, 2018
Summary
Alien hand syndrome involves strange limb behaviors, often linked to frontal lobe or corpus callosum diseases. Prompt investigation of organic causes is crucial for these neurological conditions.
Area of Science:
- Neurology
- Neuroscience
Background:
- Alien hand syndrome is a rare neurological disorder characterized by a limb, typically a hand, acting seemingly autonomously.
- It is associated with specific brain lesions, primarily affecting the medial frontal lobe and corpus callosum.
Observation:
- Two cases are presented: a 20-year-old female with left-hand interference during daily tasks and a 14-year-old boy exhibiting self-injurious behavior with his left hand.
- Both patients displayed involuntary, stereotyped limb movements inconsistent with their conscious intent.
Findings:
- Both cases demonstrated a clear structural brain lesion correlating with the alien hand phenomenon.
- Lesions in the frontal lobe can cause groping/hooking, while callosal lesions often result in left-hand abnormalities.
Implications:
- Stereotyped, involuntary limb behaviors warrant thorough investigation for underlying organic neurological disease.
- Early diagnosis and appropriate management of the causative organic lesion are essential for patient care.
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