Task-correlated physiology reveals vascular-neural networks
Molly Gallogly Bright 1 , Joseph Whittaker 1 , Ian Driver 1 , and Kevin Murphy 1
CUBRIC, School of Psychology, Cardiff
University, Cardiff, Wales, United Kingdom
We previously identified coupling of vascular-neural
networks in BOLD fMRI data using simultaneous neural
stimuli and hypercapnia paradigms. We repeat this
experiment without a hypercapnic stimulus, observing
robust changes in physiology time-locked to the neural
tasks. These task-correlated physiologic effects are
significantly more associated with the vascular networks
identified previously, and identify an additional
vascular network in bilateral motor cortices.
Task-correlated physiology significantly affects
multiple vascular networks and may mimic, spatially and
temporally, neural network activations.
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