NDLI: Coupling Between Resting Cerebral Perfusion and EEG

Content Provider	Springer Nature Link
Author	O’Gorman, R. L. Poil, S. S. Brandeis, D. Klaver, P. Bollmann, S. Ghisleni, C. Lüchinger, R. Martin, E. Shankaranarayanan, A. Alsop, D. C. Michels, L.
Copyright Year	2012
Abstract	While several studies have investigated interactions between the electroencephalography (EEG) and functional magnetic resonance imaging BOLD signal fluctuations, less is known about the associations between EEG oscillations and baseline brain haemodynamics, and few studies have examined the link between EEG power outside the alpha band and baseline perfusion. Here we compare whole-brain arterial spin labelling perfusion MRI and EEG in a group of healthy adults (n = 16, ten females, median age: 27 years, range 21–48) during an eyes closed rest condition. Correlations emerged between perfusion and global average EEG power in low (delta: 2–4 Hz and theta: 4–7 Hz), middle (alpha: 8–13 Hz), and high (beta: 13–30 Hz and gamma: 30–45 Hz) frequency bands in both cortical and sub-cortical regions. The correlations were predominately positive in middle and high-frequency bands, and negative in delta. In addition, central alpha frequency positively correlated with perfusion in a network of brain regions associated with the modulation of attention and preparedness for external input, and central theta frequency correlated negatively with a widespread network of cortical regions. These results indicate that the coupling between average EEG power/frequency and local cerebral blood flow varies in a frequency specific manner. Our results are consistent with longstanding concepts that decreasing EEG frequencies which in general map onto decreasing levels of activation.
Starting Page	442
Ending Page	457
Page Count	16
File Format	PDF
ISSN	08960267
Journal	Brain Topography
Volume Number	26
Issue Number	3
e-ISSN	15736792
Language	English
Publisher	Springer US
Publisher Date	2012-11-18
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Arterial spin labelling EEG power Whole-brain perfusion Resting state Neurosciences Psychiatry Neurology
Content Type	Text
Resource Type	Article
Subject	Neurology Anatomy Radiology, Nuclear Medicine and Imaging Neurology (clinical) Radiological and Ultrasound Technology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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