Cerebral cortex and sub-cortex lateralization in cardiovascular regulation: Correlations of BOLD fMRI and heart rate variability

The role of cerebral cortex in cardiovascular regulation has not yet been mapped in detail. Especially the lateralization of different regions that are connected to cardiovascular modulation is still unknown. In this study we used simultaneously measured electrocardiography (ECG) and blood oxygen le...

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Bibliographic Details
Published in2012 Annual International Conference of the IEEE Engineering in Medicine and Biology Society Vol. 2012; pp. 3412 - 3415
Main Authors Kuoppa, P., Niskanen, E., Karjalainen, P., Tarvainen, M. P.
Format Conference Proceeding Journal Article
LanguageEnglish
Published United States IEEE 01.01.2012
Subjects
Cerebral Cortex - physiology
Correlation
Electrocardiography
Female
Functional Laterality
Hafnium
Heart Rate
Heart rate variability
Hippocampus
Humans
Magnetic Resonance Imaging - methods
Male
Oxygen - blood
Task Performance and Analysis
Time series analysis
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Summary:The role of cerebral cortex in cardiovascular regulation has not yet been mapped in detail. Especially the lateralization of different regions that are connected to cardiovascular modulation is still unknown. In this study we used simultaneously measured electrocardiography (ECG) and blood oxygen level dependent (BOLD) fMRI to examine the correlation of cerebral cortex and sub-cortex activation and heart rate variability parameters. Correlations were calculated for 11 subjects. Regions of interest (ROIs) were predefined from observations made in previous studies. Lateralization was studied by forming ratios of left and right hemisphere activations in ROIs and calculating correlations of these to heart rate variability (HRV) parameters. Statistically significant correlations were found in every ROI.
ISBN:1424441196
9781424441198
ISSN:1094-687X
1557-170X
1558-4615
DOI:10.1109/EMBC.2012.6346698