Magnetoencephalography in the study of epilepsy and consciousness

Research output: Contribution to journalArticle

Authors

  • Elaine Foley
  • Antonella Cerquiglini
  • Mable Angela Nakubulwa
  • Paul Lawrence Furlong
  • Caroline Witton
  • Stefano Seri

Colleges, School and Institutes

Abstract

The neural bases of altered consciousness in patients with epilepsy during seizures and at rest have raised significant interest in the last decade. This exponential growth has been supported by the parallel development of techniques and methods to investigate brain function noninvasively with unprecedented spatial and temporal resolution. In this article, we review the contribution of magnetoencephalography to deconvolve the bioelectrical changes associated with impaired consciousness during seizures. We use data collected from a patient with refractory absence seizures to discuss how spike–wave discharges are associated with perturbations in optimal connectivity within and between brain regions and discuss indirect evidence to suggest that this phenomenon might explain the cognitive deficits experienced during prolonged 3/s spike–wave discharges.

Details

Original languageEnglish
Pages (from-to)38-42
JournalEpilepsy & Behavior
Volume30
Early online date7 Oct 2013
Publication statusPublished - 1 Jan 2014

Keywords

  • Magnetoencephalography, Epilepsy, Connectivity, Phase lag index, Absence seizures