
Neurosalience Neurosalience #S1E7 with Jean Chen, and Molly Bright - The opportunities and challenges of physiologic fMRI
24 snips
Apr 16, 2021 AI Snips
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Brain Vascular and Neural Network Overlap
- Brain vascular networks may map onto neural networks, complicating signal separation.
- It may be better to characterize both neural and physiological signals together rather than try to isolate them fully.
Jean Embraces Multimodal Imaging
- Jean Chen integrated EEG with fMRI recently to better differentiate neural from non-neural signals.
- Multimodal imaging has benefits and challenges but provides complementary physiological perspectives.
Exploiting Artery-Vein Signal Lag
- Susceptibility differences between arteries and veins create time-lagged, opposite-sign BOLD signals.
- This phenomenon allows mapping of cerebral blood transit delays non-invasively with resting state fMRI.
