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Alien hand syndrome.

I Biran1, A Chatterjee

  • 1Department of Neurology and the Center for Cognitive Neuroscience, University of Pennsylvania, Philadelphia 19104, USA.

Archives of Neurology
|February 18, 2004
PubMed
Summary
This summary is machine-generated.

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Alien hand syndrome is a rare neurological disorder where a person's limb acts independently, causing distress and confusion. This condition involves involuntary, meaningful movements of an affected limb.

Area of Science:

  • Neurology
  • Neuroscience

Background:

  • Alien hand syndrome (AHS) is a complex neurological disorder characterized by a limb that appears to have a "mind of its own."
  • The syndrome involves meaningful, goal-directed movements performed without the patient's conscious intention.

Observation:

  • Patients with AHS experience their limb performing actions such as grasping objects or interfering with voluntary movements.
  • Affected individuals often report a sense of detachment from the alien limb, perceiving it as externally controlled.

Findings:

  • The article traces the historical origins of the terminology and early clinical observations of alien hand syndrome.
  • It reviews studies investigating the functional neuroanatomy underlying this peculiar movement disorder.

Implications:

Related Experiment Videos

  • Understanding the neuroanatomical basis of AHS can provide insights into brain-body dissociation and motor control.
  • Further research into alien hand syndrome may inform therapeutic strategies for patients with related neurological conditions.