Spatial Variability in the Contribution of Cerebral Blood Flow Fluctuations to the Resting-State BOLD Signal

Keywords

acquisition activation activity addition anti applied arterial assess attentional audience basis blood blue bold brain cardiac cerebral characteristics clarify coherence compensate connectivity contamination continuous contribution control correction correlated correlation cortex cosine covariate cutoff default delays delve demodulated derived detecting determined difficult dual dynamic either enhance entirely experimental filtering finding fixed flow fluctuations fluid frequency functional functions future general global healthy highly importantly included inter keeping labeling linear links local major maps measure measured minimized mode model motion multiplying negatively network networks neurology node noise noises normalized note novel observations offering origins oxygenation part particular patterns physiological positive positively posterior power principal pulsation pulse pulsed radius random recorded reduce regressing relationship residual response resting restrictions selected separately series significantly simultaneously singular slow space spatial sphere spin statistically still studied studies subject subjected subjects suggests system target targets tasks technical temporal terms tightly timing unclear variability variable variance vascular visual volume waveform white