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Related Concept Videos

Epilepsy and Seizures: Overview01:24

Epilepsy and Seizures: Overview

Epilepsy is a chronic neurological disease marked by recurrent, unpredictable seizures. These seizures are caused by abnormal electrical discharges in the brain, leading to behavior, sensation, or consciousness alterations. They can also cause transient impairment of awareness, interfering with daily activities.
Various factors can trigger epilepsy, including genetic factors, brain damage, metabolic causes, and unknown etiology. Diagnosis of epilepsy involves electroencephalography (EEG), which...

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Related Experiment Video

Updated: Jul 7, 2026

Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy
12:09

Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy

Published on: August 5, 2014

Epileptic networks studied with EEG-fMRI.

Jean Gotman1

  • 1Montreal Neurological Institute, McGill University, Montréal, Québec, Canada. jean.gotman@mcgill.ca

Epilepsia
|May 28, 2008
PubMed
Summary

Combining electroencephalography (EEG) and functional MRI (fMRI) helps pinpoint brain regions affected by epileptic spikes. This noninvasive method reveals that epileptic discharges impact brain areas beyond their origin.

Area of Science:

  • Neuroscience
  • Medical Imaging
  • Epileptology

Background:

  • Identifying the precise location of epileptic generators and involved brain regions from scalp EEG is challenging.
  • Functional MRI (fMRI) offers a potential solution by detecting metabolic and blood flow changes associated with epileptic spikes.

Purpose of the Study:

  • To review the methodology for combining EEG and fMRI in epilepsy research.
  • To discuss findings from studies on focal and generalized epilepsy.

Main Methods:

  • Specialized EEG recording techniques inside an MRI scanner.
  • Statistical analysis of fMRI signals correlated with EEG epileptic spikes.
  • Review of existing literature on combined EEG-fMRI studies in epilepsy.

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Equipment Setup and Artifact Removal for Simultaneous Electroencephalogram and Functional Magnetic Resonance Imaging for Clinical Review in Epilepsy
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Equipment Setup and Artifact Removal for Simultaneous Electroencephalogram and Functional Magnetic Resonance Imaging for Clinical Review in Epilepsy

Published on: June 23, 2023

Network Analysis of Foramen Ovale Electrode Recordings in Drug-resistant Temporal Lobe Epilepsy Patients
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Network Analysis of Foramen Ovale Electrode Recordings in Drug-resistant Temporal Lobe Epilepsy Patients

Published on: December 18, 2016

Related Experiment Videos

Last Updated: Jul 7, 2026

Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy
12:09

Network Analysis of the Default Mode Network Using Functional Connectivity MRI in Temporal Lobe Epilepsy

Published on: August 5, 2014

Equipment Setup and Artifact Removal for Simultaneous Electroencephalogram and Functional Magnetic Resonance Imaging for Clinical Review in Epilepsy
10:23

Equipment Setup and Artifact Removal for Simultaneous Electroencephalogram and Functional Magnetic Resonance Imaging for Clinical Review in Epilepsy

Published on: June 23, 2023

Network Analysis of Foramen Ovale Electrode Recordings in Drug-resistant Temporal Lobe Epilepsy Patients
09:32

Network Analysis of Foramen Ovale Electrode Recordings in Drug-resistant Temporal Lobe Epilepsy Patients

Published on: December 18, 2016

Main Results:

  • Interictal epileptic discharges can influence brain areas significantly larger than the presumed seizure origin.
  • Combined EEG-fMRI successfully identifies brain regions involved in abnormal neuronal activity.
  • The method is applicable to various epilepsy types, including focal and generalized.

Conclusions:

  • Combined EEG-fMRI is a powerful noninvasive tool for investigating brain regions affected by epileptic discharges.
  • This technique provides new insights into the widespread effects of epilepsy on brain function.
  • Further research using this method can advance our understanding of epilepsy pathophysiology.