Comparison of peripheral NIRS LFOs to other denoising methods in resting state functional fMRI with ultra-high temporal resolution

摘要

PurposeFunctional MRI (fMRI) blood-oxygen level dependent (BOLD) signals result not only from neuronal activation, but also from non-neuronal physiological processes. These changes, especially in the low frequency domain (0.01-0.2 Hz), can significantly confound inferences about neuronal processes. It is crucial to effectively identify these nuisance low frequency oscillations (LFOs).