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!
Very good summary, it really helped me understand the topic👍🏻
Incredible Video, thank you!
Very informative and clear explanation. thanks!
Very informative and useful! Thank you!
pity the banner that pops up at 13:44 partly covers the summary of this clever presentation.
(subscribed anyway)
very informative, cheers
Thank you very much❤
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!