Cited by 55EEG and Brain-Computer InterfacesNeural dynamics and brain functionNeuroscience and Music Perception

Global Field Power measurement versus classical method in the determination of the latency of evoked potential components

Hamburger, Hans L., v.d. Burgt, Michelle A. G.·1991·Brain Topography

Abstract

The Global Field Power measurement (GFPM) was proposed as a method for the determination of component latency in multichannel evoked potential (EP) recordings (Lehmann and Skrandies 1980). In contrast to the classical method (CM) of peak latency determination using only two or three electrodes, multichannel recordings deal with data from twenty or more recording electrodes. We compared the GFPM and CM in evoked potential recordings. Sixty five subjects volunteered for 3 different response tasks. In a P3 oddball paradigm targets consisted of 2000 Hz tonebursts, nontargets of 1000 Hz tonebursts. Flash and Pattern Visual Evoked Potentials (VEP) also were recorded. At peak GFPM latency we found steeper voltage gradients than at CM latency. Both N200 and P300 had a significantly different topography at latencies determined by GFPM than at latencies determined by CM. For VEP we did not find a significant difference between CM and GFPM. Our Data suggests that multichannel recording adds additional dimensions to EP measurements and that only GFPM leads to an unbiased data-reduction as it determinesone momentary map in time which has maximal field strength.

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Crossref · 10.1007/bf01129642

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Authors
Hamburger, H. L., & v.d. Burgt, M. A. G.
Affiliations
Slotervaartziekenhuis (NL)
Venue
Brain Topography
Published
1991-03
Volume
3
Issue
3
Pages
391-396
ISSN
  • 0896-0267 (ISSN-L)
  • 1573-6792
OpenAlex
W2027375300
Cited by
55
References
3
Citations by year
2026: 3 · 2025: 1 · 2024: 1 · 2023: 2 · 2022: 3 · 2021: 4 · 2020: 1 · 2019: 1 · 2018: 3 · 2017: 3 · 2016: 3 · 2015: 2 · 2014: 2 · 2013: 4 · 2012: 2
FWCI
0.47
Type
journal article
Language
en
Open access
closed
Locations
  • Brain Topography (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › EEG and Brain-Computer Interfaces
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neuroscience and Music Perception
Keywords
global field power, evoked potential latency, multichannel recording, P300, N2 component, visual evoked potentials, oddball paradigm, voltage gradient, topography, data reduction
MeSH terms
Adolescent, Adult, Amplifiers, Electronic, Electrodes, Electroencephalography, Evoked Potentials, Evoked Potentials, Auditory, Evoked Potentials, Visual, Female, Humans, Male, Middle Aged, Photic Stimulation

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