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

Journal article

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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Authors: Peng, T; Niazy, R; Payne, S; Wise, R

• Publication status: Published
• Journal: Magnetic resonance imaging
• Volume: 31
• Issue: 3
• Pages: 336-345
• Publication date: 2013-04-01
• DOI: 10.1016/j.mri.2012.06.013
• EISSN: 1873-5894
• ISSN: 0730-725X
• Language: English
• Keywords: Rest; Reproducibility of Results; Humans; Adult; Sensitivity and Specificity; Carbon Dioxide; Cerebrovascular Circulation; Male; Female; Brain; Pulmonary Gas Exchange; Magnetic Resonance Imaging; Nerve Net; Functional Neuroimaging