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 Experiment Videos

Source localization using event-related desynchronization (ERD) within the alpha band

G Pfurtscheller1, C Neuper, J Berger

  • 1Department of Medical Informatics, Graz University of Technology, Austria.

Brain Topography
|January 1, 1994
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

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

Sort by
Same author

MRI-related anxiety can induce slow BOLD oscillations coupled with cardiac oscillations.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology·2021
Same author

[Neurofeedback in the Treatment of Anorexia Nervosa: a Case Report].

Fortschritte der Neurologie-Psychiatrie·2016
Same author

Brain volumetry and self-regulation of brain activity relevant for neurofeedback.

Biological psychology·2015
Same author

Abstracts of Presentations at the International Conference on Basic and Clinical Multimodal Imaging (BaCI), a Joint Conference of the International Society for Neuroimaging in Psychiatry (ISNIP), the International Society for Functional Source Imaging (ISFSI), the International Society for Bioelectromagnetism (ISBEM), the International Society for Brain Electromagnetic Topography (ISBET), and the EEG and Clinical Neuroscience Society (ECNS), in Geneva, Switzerland, September 5-8, 2013.

Clinical EEG and neuroscience·2013
Same author

Robot Assisted Walking Affects the Synchrony Between Premotor and Somatosensory Areas.

Biomedizinische Technik. Biomedical engineering·2013
Same author

Discussion of "time-frequency techniques in biomedical signal analysis: a tutorial review of similarities and differences".

Methods of information in medicine·2013
Same journal

Diffusion-Informed Joint Segmentation Enhances Detection of Thalamic Atrophy in Parkinson's Disease.

Brain topography·2026
Same journal

Local Field Potential Recordings Using Deep Brain Stimulation: A Practical Workflow and Open-Source Signal Processing Pipeline.

Brain topography·2026
Same journal

Electrocortical Indices of Default Mode Network-Related Activity in ADHD and Modulation Through Mindfulness-Based Cognitive Therapy.

Brain topography·2026
Same journal

Electroencephalogram for the Diagnosis of Depression: A Systematic Review and Meta-Analysis of Diagnostic Test Accuracy.

Brain topography·2026
Same journal

Mapping Whole-Brain Nonlinear Structure-Function Dynamics in Aging via Neural Granger Causality.

Brain topography·2026
Same journal

Association Between Spatiotemporal Properties of Global Brain Activity and Childhood Emotional and Behavioral Problems: Evidence from Microstate C.

Brain topography·2026
See all related articles

Voluntary finger movements cause event-related desynchronization (ERD) in sensorimotor areas. Optimal ERD focus for analyzing movement-related brain activity is achieved using a 56-electrode montage with local average referencing.

Area of Science:

  • Neuroscience
  • Electroencephalography (EEG)

Background:

  • Voluntary finger movements elicit event-related desynchronization (ERD) in the 10-12 Hz band over sensorimotor hand areas (C3/C4).
  • Monopolar EEG recordings with a common reference show less pronounced ERD focus compared to re-referenced data.

Purpose of the Study:

  • To investigate the impact of different EEG referencing techniques and electrode montages on the spatial focus of movement-related ERD.
  • To determine optimal recording parameters for enhanced visualization of sensorimotor activity.

Main Methods:

  • EEG data from voluntary finger movements were analyzed.
  • Raw EEG data were transformed using common average, local average, and weighted average referencing, along with the Hjorth method.
  • Data were acquired using 17, 19, 30, and 56 electrode montages with varying interelectrode distances.

Related Experiment Videos

Main Results:

  • Referencing techniques (common average, local average, weighted average) and the Hjorth method enhanced ERD focus over C3/C4.
  • A 56-electrode montage with small interelectrode distances and local average reference yielded the most focused ERD.

Conclusions:

  • EEG referencing strategies significantly improve the spatial localization of movement-related ERD.
  • High-density EEG (56 electrodes) combined with local average referencing provides superior focus for analyzing sensorimotor hand area activity during voluntary movements.