0.1-Hz oscillation in fMRI BOLD signals and full-band LFPs in rat cortex
Wen-Ju Pan 1 , Garth Thompson 1 , Jacob Billings 1 , Josh Grooms 1 , Sadia Shakil 1,2 , and Shella Keilholz 1
Biomedical Engineering, Emory University/
Georgia Institute of Technology, Atlanta, GA, United
and Computer Engineering, Georgia Institute of
Technology, Atlanta, GA, United States
Cerebral slow vasomotion, termed 0.1-Hz oscillation,
might confound neurovascular coupling in resting-state
fMRI BOLD signal. To explore neural contribution to the
0.1-Hz oscillation, simultaneous fMRI and full-band LFP
recording in rat cortex were performed. Coherence
analyses on the concurrent BOLD, infraslow LFPs and
high-frequency LFPs revealed close relationship between
each others at ~0.1 Hz during spontaneous oscillation.
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