Brainstem auditory evoked potentials recorded around the human upper brainstem area

E. Urasaki, S. Uematsu, Ronald P Lesser

Research output: Contribution to journalArticle

Abstract

The intracranial spatiotemporal distributions of brainstem auditory evoked potentials were analyzed in two patients with epilepsy to Study the dipole directions of waves III and V, previously found to have a horizontal and a vertical dipole, respectively. Depth electrodes were implanted bilaterally into the frontal and temporal lobes of these patients, the targets including the amygdala and hippocampus which are close to the upper pens and midbrain. Recordings around the upper pens and from the subcortical area downwards along the dorsal aspect of the upper pens indicated that waves III and V are constructed of mixed dipoles, wave III also having a vertical dipole segment and wave V also a horizontal one. These results suggest that several neural activities from the upper pens to midbrain contribute to the generation of waves III and V.

Original languageEnglish (US)
Pages (from-to)353-359
Number of pages7
JournalNeurologia Medico-Chirurgica
Volume35
Issue number6
StatePublished - 1995

Fingerprint

Brain Stem Auditory Evoked Potentials
Mesencephalon
Brain Stem
Implanted Electrodes
Frontal Lobe
Temporal Lobe
Amygdala
Epilepsy
Hippocampus
Direction compound

Keywords

  • Brainstem auditory evoked response
  • Depth recordings
  • Dipole segment
  • Wave III
  • Wave V

ASJC Scopus subject areas

  • Clinical Neurology
  • Surgery

Cite this

Brainstem auditory evoked potentials recorded around the human upper brainstem area. / Urasaki, E.; Uematsu, S.; Lesser, Ronald P.

In: Neurologia Medico-Chirurgica, Vol. 35, No. 6, 1995, p. 353-359.

Research output: Contribution to journalArticle

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