Abstract #3117
Identification of whole brain correlation patterns between resting-state fMRI signal amplitude and EEG vigilance in eyes-closed and eyes-open conditions
Chi Wah Wong 1 , Valur Olafsson 1,2 , Omer Tal 1 , and Thomas Liu 1
1
Center for Functional MRI, University of
California San Diego, La Jolla, CA, United States,
2
Neuroscience
Imaging Center, University of Pittsburgh, PA, United
States
A prior study has shown that the global signal amplitude
in resting-state fMRI is negatively correlated with a
measure of EEG vigilance in the eyes-closed (EC)
condition but not in the eyes-open (EO) condition. In
this study, we used simultaneous EEG-fMRI to identify
brain regions in which the BOLD signal amplitudes are
correlated with EEG vigilance. We then compared the
spatial distribution between the EC and EO conditions.
We found that the BOLD signal amplitude in the motor
cortex, middle temporal gyrus, basal ganglia and cuneus
are more negatively correlated with EEG vigilance in EC
than EO.
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