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Related Experiment Videos

Neologistic speech automatisms during complex partial seizures.

W L Bell1, J Horner, P Logue

  • 1Department of Medicine, Duke University Medical Center, Durham, NC.

Neurology
|January 1, 1990
PubMed
Summary

This study reports the first documented case of seizures causing reiterative neologistic speech automatisms. Such complex speech disturbances during seizures may indicate a focus in the brain's language-dominant hemisphere.

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Area of Science:

  • Neurology
  • Neuroscience
  • Epileptology

Background:

  • Seizures can manifest with diverse symptoms, including speech disturbances.
  • Neologistic speech automatisms, characterized by novel word formation, are rarely documented during epileptic seizures.

Observation:

  • A case of an 18-year-old woman presenting with stereotypic ictal speech automatisms involving phonemic jargon and reiterative neologisms.
  • Video-electroencephalography (Video-EEG) revealed rhythmic delta activity in the left posterior temporal region during these neologistic episodes.

Findings:

  • Surgical exploration identified an arteriovenous malformation (AVM) affecting the left supramarginal and superior temporal gyri.
  • This finding suggests a potential link between AVMs in the language-dominant hemisphere and neologistic speech automatisms during seizures.

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Implications:

  • Neologistic speech automatisms during seizures may serve as a specific indicator for seizure foci in the dominant hemisphere.
  • Understanding these complex ictal phenomena can improve the localization of epilepsy and guide surgical treatment strategies.