Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Epilepsy and Seizures: Overview01:24

Epilepsy and Seizures: Overview

1.3K
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...
1.3K
Sinusoidal Sources01:18

Sinusoidal Sources

1.2K
Direct current (DC) refers to an electric current that flows in a single direction, maintaining a constant polarity. This is in contrast to alternating current (AC), which periodically changes its direction and magnitude. AC forms the backbone of modern electricity transmission and distribution systems due to its efficient long-distance transmission capabilities.
In homes, the power supplies use sinusoidal sources to provide electricity. These sources generate a voltage that varies sinusoidally...
1.2K
AC Sources01:20

AC Sources

4.1K
Direct current is a flow of electric charge in only one direction and has a steady state of constant voltage in the circuit. Rectifiers, batteries, commutator-equipped generators, and fuel cells are some examples of devices that generate direct current. Nowadays, most applications use a time-varying voltage source. Alternating current is a flow of electric charge that periodically reverses direction. An alternating current is produced by an alternating emf that is generated in a power plant. If...
4.1K
Sources of Law01:26

Sources of Law

1.9K
Laws form the essential rules set by governing authorities to shape and control societal behavior. In nursing, laws guide actions, safeguard patient rights, define nurses' scope of practice, and maintain professional standards. Understanding the legal framework governing nursing involves recognizing four primary sources of law: constitutional, statutory, administrative (regulatory), and common law.
Constitutional law is foundational, deriving from federal and state constitutions, and...
1.9K
Source Transformation01:15

Source Transformation

11.5K
Source transformation is a fundamental technique employed in circuit analysis, offering a valuable tool for simplifying complex electrical circuits. This technique involves the replacement of either a voltage source in series with a resistor by a current source in parallel with a resistor, or vice versa. The key concept here is that when the original sources are deactivated (turned off), the equivalent resistance at the circuit's end terminals remains the same.
It is essential to note that when...
11.5K
Multiple Voltage Sources01:25

Multiple Voltage Sources

1.8K
Generally, a single battery is not enough to power some devices. In such cases, batteries can be combined in two ways: in series or in parallel.
In series, the positive terminal of one battery is connected to the negative terminal of another battery. Hence, the voltage of each battery is added to give the net voltage, which is increased because each battery boosts the electrons that enter it. The same current flows through each battery because they are connected in series.
Batteries are...
1.8K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Asymmetric sleep spindles after thalamic stroke.

Epileptic disorders : international epilepsy journal with videotape·2026
Same author

Established and emerging neuromodulation for drug-resistant epilepsy.

Clinical neurology and neurosurgery·2026
Same author

Seizure relapse in new onset epilepsy: It is not always drug resistance.

Epilepsia·2026
Same author

Impact of Etiology on Mortality and Recovery in Patients With Status Epilepticus.

Neurology·2026
Same author

Linking New Onset Epilepsy Risk-of-Relapse to EEG Connectivity and Microstates.

Journal of clinical neurophysiology : official publication of the American Electroencephalographic Society·2026
Same author

Scalp-negative medial temporal interictal epileptic discharges alter large-scale brain networks: A simultaneous high-density electroencephalographic and intracranial electroencephalographic study.

Epilepsia·2025

Related Experiment Video

Updated: Jan 30, 2026

Author Spotlight: Advancing Pediatric Epilepsy Surgery in Children Through Novel Biomarkers and Enhanced Localization
09:57

Author Spotlight: Advancing Pediatric Epilepsy Surgery in Children Through Novel Biomarkers and Enhanced Localization

Published on: September 20, 2024

3.6K

Electroencephalography, magnetoencephalography and source localization: their value in epilepsy.

Pierre Mégevand1,2, Margitta Seeck1

  • 1EEG and Epilepsy Unit, Neurology Division, Clinical Neuroscience Department, Geneva University Hospitals.

Current Opinion in Neurology
|February 13, 2018
PubMed
Summary

Electroencephalography (EEG) and magnetoencephalography (MEG) accurately pinpoint epilepsy sources, aiding drug-resistant epilepsy treatment. These noninvasive techniques rival MRI in clinical relevance for surgical assessments.

More Related Videos

Interictal High Frequency Oscillations Detected with Simultaneous Magnetoencephalography and Electroencephalography as Biomarker of Pediatric Epilepsy
10:22

Interictal High Frequency Oscillations Detected with Simultaneous Magnetoencephalography and Electroencephalography as Biomarker of Pediatric Epilepsy

Published on: December 6, 2016

21.1K
How to Detect Amygdala Activity with Magnetoencephalography using Source Imaging
10:48

How to Detect Amygdala Activity with Magnetoencephalography using Source Imaging

Published on: June 3, 2013

22.7K

Related Experiment Videos

Last Updated: Jan 30, 2026

Author Spotlight: Advancing Pediatric Epilepsy Surgery in Children Through Novel Biomarkers and Enhanced Localization
09:57

Author Spotlight: Advancing Pediatric Epilepsy Surgery in Children Through Novel Biomarkers and Enhanced Localization

Published on: September 20, 2024

3.6K
Interictal High Frequency Oscillations Detected with Simultaneous Magnetoencephalography and Electroencephalography as Biomarker of Pediatric Epilepsy
10:22

Interictal High Frequency Oscillations Detected with Simultaneous Magnetoencephalography and Electroencephalography as Biomarker of Pediatric Epilepsy

Published on: December 6, 2016

21.1K
How to Detect Amygdala Activity with Magnetoencephalography using Source Imaging
10:48

How to Detect Amygdala Activity with Magnetoencephalography using Source Imaging

Published on: June 3, 2013

22.7K

Area of Science:

  • Neuroscience
  • Medical Imaging
  • Epileptology

Background:

  • Source localization using electroencephalography (EEG) and magnetoencephalography (MEG) noninvasively identifies the origins of abnormal brain activity in epilepsy.
  • These techniques are crucial for understanding interictal epileptic discharges (IEDs) and seizures in patients with drug-resistant epilepsy.

Purpose of the Study:

  • To review recent advancements in EEG and MEG source localization for epilepsy treatment.
  • To highlight the clinical utility of these neuroimaging techniques in managing drug-resistant epilepsy.

Main Methods:

  • Analysis of high-density EEG and MEG data for source localization of IEDs and seizures.
  • Comparison of EEG/MEG source localization accuracy and clinical relevance with structural MRI.
  • Assessment of the reliability of localizing specific brain regions like the somatosensory and language cortex.

Main Results:

  • High-density EEG and MEG source localization of IEDs are accurate and clinically relevant, comparable to MRI.
  • Seizure onset localization shows promising results, though signal processing requires further refinement.
  • EEG/MEG can reveal alterations in large-scale network dynamics associated with epilepsy.

Conclusions:

  • EEG/MEG source localization demonstrates high performance and should be integrated into epilepsy surgery assessment protocols.
  • These techniques offer a valuable, noninvasive alternative or complement to established methods like MRI for surgical planning.