Cited by 206Neural dynamics and brain functionEEG and Brain-Computer InterfacesOptical Imaging and Spectroscopy Techniques

Hemodynamic correlates of EEG: a heuristic

Kilner, J.M., Mattout, J., Henson, R., Friston, K.J.·2005·NeuroImage

Abstract

In this note we describe a heuristic, starting with a dimensional analysis, which relates hemodynamic changes to the spectral profile of ongoing EEG activity. In brief, this analysis suggests that 'activation', as indexed by increases in hemodynamic signals, should be associated with a loss of power in lower EEG frequencies, relative to higher frequencies. The fact that activation is expressed in terms of frequency (i.e., per second) is consistent with a dimensional analysis in the sense that activations reflect the rate of energy dissipation (per second). In this heuristic, activation causes an acceleration of temporal dynamics leading to (i) increased energy dissipation; (ii) decreased effective membrane time constants; (iii) increased effective coupling among neuronal ensembles; and (iv) a shift in the EEG spectral profile to higher frequencies. These predictions are consistent with empirical observations of how changes in the EEG spectrum are expressed hemodynamically. Furthermore, the heuristic provides a simple measure of neuronal activation based on spectral analyses of EEG.

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Crossref · 10.1016/j.neuroimage.2005.06.008

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  • fMRI signals scale with the predominant frequency of neuronal activity.

    “This is because it is generally assumed that fMRI signals scale with the predominant frequency of neuronal activity (Kilner et al., 2005; Laufs & Duncan 2007; Rosa et al., 2010).”

    From Network discovery with DCM (2011) · cites this paper as Kilner et al., 2005

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Authors
Kilner, J. M., Mattout, J., Henson, R., & Friston, K. J.
Affiliations
National Hospital for Neurology and Neurosurgery (GB)
Corresponding author
Kilner, J.M.
Venue
NeuroImage
Publisher
Elsevier BV
Published
2005-10
Volume
28
Issue
1
Pages
280-286
ISSN
1053-8119 (ISSN-L)
OpenAlex
W2153427235
Cited by
206
References
36
Citations by year
2026: 1 · 2025: 3 · 2024: 10 · 2023: 4 · 2022: 7 · 2021: 9 · 2020: 5 · 2019: 7 · 2018: 9 · 2017: 10 · 2016: 9 · 2015: 12 · 2014: 11 · 2013: 16 · 2012: 16
FWCI
5.93
Type
journal article
Language
en
Open access
closed
Locations
  • NeuroImage (publishedVersion)
  • PubMed (publishedVersion)
  • UCL Discovery (University College London) (submittedVersion)
Funders
Wellcome Trust
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Neural dynamics and brain function
  • Life Sciences › Neuroscience › Cognitive Neuroscience › EEG and Brain-Computer Interfaces
  • Health Sciences › Medicine › Radiology, Nuclear Medicine and Imaging › Optical Imaging and Spectroscopy Techniques
Keywords
neuronal activation, dimensional analysis, energy dissipation, membrane time constant, neuronal ensembles, hemodynamic response
MeSH terms
Algorithms, Cerebrovascular Circulation, Electroencephalography, Energy Metabolism, Hemodynamics, Humans, Magnetic Resonance Imaging, Models, Neurological, Oxygen

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