The relation between alpha band power, heart rate and fMRI

J. C. De Munck*, S. I. Gonçalves, Th J.C. Faes, P. J.W. Pouwels, J. P.A. Kuijer, R. M. Heethaar, F. H. Lopes Da Silva

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

The brain's resting state is studied with the analysis of coregistered fMRI/EEG/ECG. In particular, it was investigated whether spontaneous heart rate fluctuations are correlated to fMRI-signals. This might be the case because of a direct hemodynamic coupling, or due to an indirect coupling between heart rate and alpha band power, which are both hall marks of the resting state. It was found that (1) higher alpha power coincides with a higher heart rate, (2) heart rate regressors are in many subjects strongly coupled to fMRI, and (3) inclusion of heart rate confounders hardly affects earlier reported correlations between alpha band and fMRI.

Original languageEnglish
Title of host publication2007 4th IEEE International Symposium on Biomedical Imaging
Subtitle of host publicationFrom Nano to Macro - Proceedings
Pages436-439
Number of pages4
DOIs
Publication statusPublished - 2007
Event2007 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro; ISBI'07 - Arlington, VA, United States
Duration: 12 Apr 200715 Apr 2007

Publication series

Name2007 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro - Proceedings

Conference

Conference2007 4th IEEE International Symposium on Biomedical Imaging: From Nano to Macro; ISBI'07
CountryUnited States
CityArlington, VA
Period12/04/200715/04/2007

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