Very informative, thank you! I was wondering if anyone would be able to explain the term "neurovascular coupling" in relation to fMRI? I don't fully understand how it relates to the mechanics of fMRI. Thank you!
the BOLD signal comes from that influx of fresh (oxygenated) blood after neural activity. there's a difference in magnetism between fresh and 'used' (deoxygenated) blood and this difference is a natural contrast agent, so to speak, that the scanners (and more specifically pulse sequences) are designed to exploit. it's a small-ish and pretty noisy signal, but it works!
Thank you very much, I feel much more confident going into my neurobiology midterm! CHEERS
I'm overly thankful for this video, thank you very much!
Incredible Video, thank you!
Very good summary, it really helped me understand the topic👍🏻
pity the banner that pops up at 13:44 partly covers the summary of this clever presentation.
(subscribed anyway)
Very informative and clear explanation. thanks!
Very informative and useful! Thank you!
very informative, cheers
Very informative, thank you! I was wondering if anyone would be able to explain the term "neurovascular coupling" in relation to fMRI? I don't fully understand how it relates to the mechanics of fMRI. Thank you!
the BOLD signal comes from that influx of fresh (oxygenated) blood after neural activity. there's a difference in magnetism between fresh and 'used' (deoxygenated) blood and this difference is a natural contrast agent, so to speak, that the scanners (and more specifically pulse sequences) are designed to exploit. it's a small-ish and pretty noisy signal, but it works!
Thank you very much❤