fMRI Brain Networks in 10 Minutes | Default-Mode Network and Others Explained

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Brain networks such as the default-mode network are mentioned more and more and the media these days - but what exactly are these brain networks?

In this video, I start with the very basics of how functional brain imaging works and dive into the seven main brain networks that neuroscientists typically refer to. No neuroscience background needed!

What I describe in here is important foundational stuff for understanding the latest developments in psychedelic neuroscience, and for an understanding of brain function in general. This video is the first in my series on psychedelic neuroscience - much more to come!

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More info about me:

Dr. Manesh Girn is a postdoctoral psychedelic neuroscientist working at the University California San Francisco with pioneering psychedelic researcher Dr. Robin Carhart-Harris. He conducts cutting-edge brain imaging research on the psychological and brain mechanisms underlying the psychedelic experience and psychedelic-assisted therapy.

He has a PhD in Neuroscience from McGill University and has been lead or co-author on over two dozen scientific publications and book chapters on topics including psychedelics, meditation, daydreaming, and brain networks.

Additional links:

[bethf]

You explain this very well. I paused my lecture on this in my psychedelic coaching course to better understand the networks she was explaining. Thank you! I can also see the correlation of ADD with Depression and anxiety through better understanding of the networks.

[LUNOsVerse]

Amazing! The moment you said "Frontoparietal Control Network" connects to DMN when shifting our attention inwards (in planning, projecting ourselves into the future), and it connects to Dorsal Attention Network, when our attention aims outwards it hit me hard. I had to subscribe. It was such a relevant and revelational fact for me. Thank you for bringing such value on this platform!

[lynntfuzz]

That is a great video! You explain things so succinctly and clearly. Students must love your classes!

[davoodbayat]

a wonderful enlightening video. I wonder how those two people could dislike it! BTW, as I saw your research gate page on which you mentioned you are working on the DMN, I hope that you tell us more about it soon :)

[marcraper]

An awesome overview of the systems. So interesting and enlightening. So helpful to have this information when discussing what is happening in mindfulness, introspection, and how tripping can affect the regions. Look forward to a deeper dive with you on the subject in future talks

[markuswilliner]

Great channel, manesh. Much appreciated content, manner of delivery and relevance. Keep up the good work.

[PsytranceGOUGAS]

Your videos really hit a good balance of going hallway between surface level and more detailed neuroscience angles. I miss your content, dude! Would be great to see more when you manage to squish in some more amongst the PhD work :)

[kpatriciabouweraerts]

You are a clear, good teacher! Thank you so much for explaining these concepts so well.

[hfelippejr]

Thank you so much for this, Manesh! Really helpful :-)!

[chasemanhart]

Making a Podcast for class on Creativity, apparently Default-Mode Network is a part of that. Thank you.

[YashMRSawant]

4:55 brain-map corresponds to cingulo opercular network, also called action mode network. Not salience network

[Micro.Movement]

would it be correct to say that default physical functions like tying show laces, or walking while day dreaming is also part of the DMN?
specifically I'm interested about "automatic" movements.

[annadearman]

Thank you! I am writing a transdisciplinary PhD proposal and am good with genetics but need help with my neuroscience, so this was great :)

[sheafisher]

Awesome channel and content. I'm glad you're doing this because it helps me better understand some related psychology research that I'm doing, which touches on many neural network /fMRI studies. I just subscribed. Keep it up!

[rafca]

I wonder if the "homunculus" tag is meant to censor something at 4:50

[mirnafilipic]

Amazing explanation! Thank you so much!!

[pratheepp]

Very well done. Made what is a complicated topic into something we can understand. Can you take a sample fmri report and add an explanatory video.

[ivandisipio]

Thank you for your explanation, it is really useful! I'm interested in neuroscience of meditation and I've always had a question: is the DMN that bad as they say? I mean, if I try to be always in the present (task positive network it seems) after a while I feel my mind needs to rest, and I find DMN very restorative. Please, can you tell me what do you think about it?

[thrivingwithadhd]

Thank you for such a fantastic video. Could you please point me towards some academic papers that explain this as well as you have? I’m currently completing a PhD on ADHD and have been really struggling to understand each of the brain networks and how they interact. The info I have found has either been too basic or too complicated to make sense of. Thank you x

[elevatedDestiny]

Thank you so much for this video and all your videos! I am writing a research proposal as an assignment for my masters program on psilocybin-induced neurobiological mechanisms mediating reductions in existential anxiety. I'm thinking to analyze functional connectivity using fmri as a method and this video was very helpful.