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The effects of respiratory CO2 fluctuations in the resting-state BOLD signal differ between eyes open and eyes closed.

Abstract:

Resting fluctuations in arterial CO2 (a cerebral vasodilator) are believed to be an important source of low-frequency blood oxygenation level dependent (BOLD) signal fluctuations. In this study we focus on the two commonly used resting-states in functional magnetic resonance imaging experiments, eyes open and eyes closed, and quantify the degree to which measured spontaneous fluctuations in the partial pressure of end-tidal CO2 (Petco2) relate to BOLD signal time series. A significantly longe...

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Publication status:
Published

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Publisher copy:
10.1016/j.mri.2012.06.013

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Institution:
University of Oxford
Department:
Oxford, MPLS, Engineering Science
Role:
Author
Journal:
Magnetic resonance imaging
Volume:
31
Issue:
3
Pages:
336-345
Publication date:
2013-04-05
DOI:
EISSN:
1873-5894
ISSN:
0730-725X
URN:
uuid:0fcf35be-68d0-4b76-b6e1-203d3425c9ad
Source identifiers:
349819
Local pid:
pubs:349819

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