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Related Experiment Video

Updated: Jul 8, 2026

Frame-by-Frame Video Analysis of Idiosyncratic Reach-to-Grasp Movements in Humans
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Frame-by-Frame Video Analysis of Idiosyncratic Reach-to-Grasp Movements in Humans

Published on: January 15, 2018

Ictal non-forced grasping behaviour.

R C Leiguarda1, M I Nouzeilles, G Ugarnes

  • 1Department of Neurology, Institute of Neurological Research (FLENI), Buenos Aires, Argentina. rleiguar@fleni.org.ar

European Journal of Neurology
|January 26, 2008
PubMed
Summary

Frontal lobe epilepsy patients may exhibit non-forced grasping and finger manipulation during seizures. This ictal behavior, unlike in temporal lobe epilepsy, involves reaching and grasping movements, offering insights into seizure manifestations.

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Area of Science:

  • Neurology
  • Epileptology

Background:

  • Video electroencephalography (VEEG) is crucial for localizing epileptogenic foci.
  • Understanding seizure semiology aids in differentiating epilepsy types and localizing the seizure onset zone.

Observation:

  • This study investigated grasping and manipulatory movements during seizures in patients with frontal versus temporal lobe epilepsy.
  • Ictal videotapes of 60 patients (30 frontal, 30 temporal) were retrospectively analyzed.

Findings:

  • 13% of frontal lobe epilepsy patients displayed unilateral grasping, with some showing whole hand prehension or pinching movements.
  • These grasping movements were preceded by reaching behaviors (arm abduction/elevation).
  • No grasping behaviors were observed in temporal lobe epilepsy patients.

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Last Updated: Jul 8, 2026

Frame-by-Frame Video Analysis of Idiosyncratic Reach-to-Grasp Movements in Humans
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A Novel Method for Assessing Proximal and Distal Forelimb Function in the Rat: the Irvine, Beatties and Bresnahan (IBB) Forelimb Scale
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A Novel Method for Assessing Proximal and Distal Forelimb Function in the Rat: the Irvine, Beatties and Bresnahan (IBB) Forelimb Scale

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Implications:

  • Frontal lobe seizures can manifest with complex motor behaviors, including non-forced grasping and manipulation.
  • These findings may help distinguish frontal lobe epilepsy from other types based on ictal semiology.
  • Further research can refine the diagnostic utility of these motor phenomena in epilepsy.