Is There An fMRI Crisis?
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- Опубликовано: 25 авг 2024
- As technology becomes more complex, it's easier for things to go wrong.
Hosted by: Brit Garner
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"FMRI brings dead salmon back to life (scientists are furious)"
Ashlea Wynter 😂
This is known as out of context
hmm 🤔
Ashlea Wynter religious people think like that, cause thats how they react when someone challenges thier religion with scientific evidence.
where is the research on why psychology majors can't find jobs (oh that's the job of a philosophy major)
As an fMRI researcher, this is very well done. Great job SciShow Psych!
Cory Inman Can fMRI scans be used to diagnosed mental illnesses?
cellogirl11RW Yes, some mental illnesses cause abnormal activation patterns in the brain. Pretty sure that's the case with depression, schizophrenia, OCD, ... Maybe not all mental illnesses but quite a few of them
cellogirl11RW Just read your question again: You normally wouldn't use fMRI for diagnosis. Diagnostic interviews and questionnaires are more common. But I think you could infer from someone's fMRI scan that they are mentally ill by giving them certain tasks and observing how their brains deal with it.
Peter Kleber Cool! I have ADD and bipolar disorder, and I've always wondered what my brain is doing/not doing.
I am not someone who is into fMRI and I would have liked a little more detail about how the machines work. It seems fairy obvious to me that the strong field used would be driving the proton precession rate up to a really high frequency but I really don't get how using a gradient lets them pick off a slice in space rather than getting a signal from the brain where each part of the brain is contributing at a different frequency.
I've done fMRI research for nearly 4 years of my PhD training and I've never been able to explain the technology so concisely! Ha. Appreciate this vid!!!
HilTheMill What are you studying using fMRI research?
But they explained it incorrectly.... electrons don't absorb energy from magnetic fields like they explained. It's radio waves that excite electrons.
Jo Po Exited exited electrons means that they absorbed extra energy (from radio waves which are excitation of the EM field) otherwise they'd be at ground state, so no she explained it well.
Hello can you give your email aur insta is please 🙏🥺
I do like the little graphical tricks y'all insert sometimes, like the time slice delay bit, to illustrate the point . :)
that time slice delay edit was so helpful!
I really enjoyed the editing that provided concrete examples of the things that are done to calibrate the fMRI data in this video :)
Great video! My dad has serviced MRIs and CTs for as long as they've been in the US. I can't wait to show this to him. He's retired now, but he's so good at what he does that he goes back occasionally to teach classes. He's serviced all over the world, from Europe to Africa and even Japan! People come from all over the world to attend the classes he teaches. He recently had a barbecue with his class and said it was amazing, since there were people from all over the world cooking how they would back home. People from France and Korea and Isreal all coming together to learn about technology that saves lives and teaches us so much about our brains and bodies, and all celebrating a job well done like friends. It really does warm my heart. Also, he said that Korean kebabs are delicious.
It's a more dangerous job than one might think. It's company policy to never ever work on one alone. A man suffocated to death while working on one, he accidentally activated the magnet and his chest got pinned to it by a metal chair. If he had someone else, he could've survived. There's also the need for proper ventilation, since the magnets are supercooled with liquid helium - if something happens and there is a leak, helium gas will fill the room. Just like CO and CO2, it can suffocate you without you even realizing.
PS: I love SciShow, I've been subscribed since your first year and I still look forward to everything you post. The video on your main channel about xenophyophores was super fascinating to me, I had no idea they existed! I really wish I had an income to support you on Patreon, currently I'm in school living off my parent's money. Though they're such big fans of public education maybe I could talk em into a couple dollars a month.
Keep on being awesome!! ❤
I have to say this, you are such a great host. I am not often impressed by presentors, but you have just the right balance of enthusiasm, knowledge and energy. Keep it up!
I agree! She's my favorite host of all of them.
Interesting spelling of "enthusiasm."
仮面 maybe she's Dutch.
Oh haha yeah i am dutch, didn't notice my autocorrect did that
OurPeanutGallerie enthousiasme
Can dogs operate a MRI machine?
No but catscan
I can attest to it being hard to hold still, especially if you are severely claustrophobic and have your head in a plastic cage designed to make you hold still. -_-
Benther That helps slightly, but I have a big head so I could still feel it pressing into the sides of my head. I got through it, but barely.
and your nose always itches.
David T lol, yes, every time!
I have had too many MRI's to count. What I do is make sure that my bladder is empty, go for a walk, stretch, shake all my energy out, get a small drink of water, ask the technician to stream music from my iPod over the MRI headset, and make sure that I'm comfortable enough to fall asleep (sometimes, I actually do). I also scratch any itches and do circles with my hands and feet to release trapped energy. In the instances where I can't listen to music during an MRI, I like to describe the noises the machine makes (high, low, loud, choppy, etc) and imagine what exactly it's doing.
cellogirl11RW I have to have another MRI sometime in the next couple of weeks (this time of my entire spine instead of just T10-down like last time), so I'll try taking a walk beforehand and seeing if they'll play my music instead of the generic elevator music they usually play. Thanks for sharing your pre-MRI routine! Hopefully it will be of help to others too. :)
Now you guys have covered two of the key topics/methods in my thesis research. I hope my examining committee doesn't mind if I just play the videos for them while I take a nap.
fortheloveofLDS omg great idea. My quals are coming up and I might consider doing just that :P
i'm just going to replace myself with the internet
As a physicist and a statistician, I loved this episode. Well done! Maybe SciShow could make one to explain fMRI a little bit. The part where the uncertainty principle makes fMRIs less resolved than a regular MRI is quite interesting 😉
I actually expected a video on Helium shortages coupled with an industrial push to have the feds sell off our helium reserves leaving MRI machines inoperable.
learning is still learning however.
And thankfully they tested it on a dead salmon hahaha thats a way to calibrate
Max Musterman MRI machines are frequently tested by scanning produce.
Max Musterman Does that mean they wheel in Trump every now and then? XD
How do they know the fish wasn't just sleeping?
This was an ex-salmon.
This salmon is no more. It has ceased to be. It's expired and gone to meet its maker. This is a late salmon . It's a stiff. Bereft of life, it rests in peace. If you hadn't nailed it to the perch, it would be pushing up the daisies. It's rung down the curtain and joined the choir invisible.
exp10der Thanks Patch.
exp10der All of that gold dropped on buying a phoenix down was worth it then.
gooble pls
Its pining for the fiords.
"thankfully psychologists ... want to make sure they're not blowing bogus results out of proportion" 😂 🤣😂 🤣😂 🤣😂 Bem, Stapel, Wansink, Cuddy, Bargh 😂 🤣
love that shirt. might have to get me one of those
Olórin What does the text on it say?
Though the slightest distortion on a squashed or stretched image always sticks out to me like a sore thumb, the amount of people who don't notice when their TV aspect is wrong or who think it's OK to just squash/stretch to fit a graphic in a professional setting has me convinced that there are many people who are just oblivious to it. Perhaps we are wired differently from others, so I wouldn't make the assumption that most would notice. ;)
Just hold shift when you grab that sizing handle! Seriously.
In Canada they do not allow access to CT scans and MRI machines. There is a known shortage of access to MRI machines here to a strange degree. They are hiding something. They are already experimenting on the populace, and you can guess what the big picture is already (ie huge racist mistakes as always)
Due to MS I've been inserted into one of the machines 4 times in recent years. I can still reach the spawning ponds though..👍
Omg! I know this comment is old - you likely won't see this. But I had to tell you how hard I laughed at this.
I have a spinal cord injury from an accident 16yrs ago, and I have recently developed a very serious brain condition because of it. My experience is actually not unlike MS, actually. Anyway, I have been in SO MANY scans in the past few months, I've lost track of how many. Close to a dozen?
I don't judge how anyone deals, but for *me*, I find humor is a necessity. So I thank you for this, because I am having a really rough night, and this helped a lot!
Best host.
Frøken Glattbarbert Stillas-sikkerhetsinspekt After Hank, yes
I dislike her. No problem with other hosts.
really? i felt the most uncomfortable with her. infact I came to the comments section to see if others think this way. Seems like people like her.
Different people like different people, that's about it.
chikkachinijohannady she was almost cringeworthy at first. Little less bad now
So I guess you could say that some studies are fishy.
Wow, this video is excellent. Great oratory and presentation skills combined with illustrative editing really take it to the next level.
"Crisis" might be a bit strong of a word. I was expecting them to be causing some sort of harm to the patients.
Concerning inaccuracies would be a better way to phrase it.
4:10 "But this doesn't necessarily mean whole studies are completely wrong." It just means the studies are crap and don't tell you very much. "Don't worry, all the bugs have been fixed." (said the software vendor).
i did an MRI after an accident and it was super fun! all those rythmic fundamental waves repeating in patterns... i had to stay still but i headbanged in my head.
Had a neurologist tell me in 2013 "there is no such thing as fMRI".
As a male of human kind we tend to look at boobs but today i'm feeling guilty cause astrophysics Neil deGrasse Tyson looking back at me.
*Awkward*
"Maybe science will help", but i don't want help if it stops me from staring at boobs.
Forever Ignorant 🤣 his face too
Well played, t-shirt designer.
lol@2:40 when a skinny guy wears that shirt, Tyson turns into Bill Cosby.
I could not stop staring at him LOL
Jinsi K not possible if boobs are involved men have to stare if someone says they don't they're a damn liar
Didn't stop me. Just stimulates both my heads.
fMRI study sizes haven't been small because of the "high cost of switching on the electromagnet" -- it is a super-cooled coil (superconductor), and electrical current is injected into the coil when a service technician is topping up the cryogenic coolant, typically liquid helium, about once annually. So the super strong magnetic field is always on at full strength. The high cost of MRI studies is due to the cost of the machine itself and the facility, maintenance costs, highly skilled operators, time required for each scan, and professional interpretation fees. Each case scanned requires funds to contribute to these costs plus some overhead for profit.
This hosts voice can smooth a veteran having a flashback into going to sleep
I decided I'll continue to point out the fact that she wears awesome t-shirts every episode until everyone cannot unsee it.
This presenter is fkn awesome
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Thicccccc
I've always been incredibly frustrated that MRIs never use any clamping mechanism to ensure accurate images. you shouldn't need straps to secure, just a clamp, it can even be made of plastic and removable for cleaning.
I think the main thing holding back use of a clamp is that it appears crueler, when in reality, it's crueler to expect a sick child or adult to remain perfectly still.
right on and very well done, Ms. Brit! thank you!
Neuropsychology is a growing field with immense promise. As studies are replicated using different equipment and software, our knowledge about how the brain really works will soon rapidly increase.
I want to imagine the confusion of the guys running the fMRI on a dead salmon. "Why are we doing this, again?" "We best make sure this is cleaned up before our next actual test." "Man. My job is weird..."
this channel is awesome! :D
The other crisis: MRI magnets need to be supercooled, so we have to use liquid helium, which is already scarce and doesn't replenish, but we still waste it making goofy voices and balloons which might result in a lot of our tech, including MRIs, becoming ridiculously expensive very soon.
Hi Brit! First time watching one of your videos, and I just wanted to say you're doing a fantastic job. I have some hearing problems, but your enunciation is fantastic!!!
You are an absolutely outstanding host! Good job! :)
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I'm a highly functioning autistic individual (read: I have aspergers) and as such, I've participated in a few fmri studies over the years. It will be interesting to see just how accurate those old studies are now, now that we know the data may have been flawed.
The results of the dead salmon experiment would have made a great article in _Annals of Improbable Research._
awesome content and the new host (or new to me) was great please give more info on how the statistics in the process for diagnosis is applied.i hope i put that sentence together correctly lol
FMRI is why its so hard to find info on how minecraft works. Seriously, if you search for scholarly articles on voxels all ya get is totally over-your-head science jargon
"... and squint" LMAO
Can you guys do a video about Magnetoencephalography (MEG) in psychology research and how it can be paired with fmri and eeg
Yet, they are expensive. I have had a few in my life. The older the noisier and scarier.
I love this host!
Thumbnail is a ct scanner. Good job. RT(R)(CT)(MR) here.
more salmon is needed before any conclusions can be reached
This is how people could determine if I was gagging on purpose or not And that’s the only thing that would make Mrs. McBratney and Mrs Heberline happy
great info!
1:04 boxed test. U dont turn on and off an fMRI magnet, its always on, as long as tehre is cooling helium
This was great information. Especially since I have had a gazillion MRI''s. But why is it on the Psych channel and not just regular SciShow?
Any scientific research which involves data and data analysis which does not also include the raw data itself and all computer code used to analyse it should be assumed to be invalid. It's as simple as that. We don't permit researchers to keep secrets about any OTHER type of experiment setup or procedure, and there is absolutely no reason to make an exception for data and computer code. Especially since those things are so extremely easy to preserve and distribute!
Maybe that 'dead salmon' was in the mid of his/her reincarnation - becoming an Eagle🧐🤔
Neil's pixels are turning into voxels from those sweet 3d lady loaves .
Do these older studies actually have to be replicated in order to prove/disprove them being affected by those software bugs? I'd've thought simply running the raw data back through the patched version would suffice.
when I got an mri, body not head. it was like "Oh you have braces. yeah can you take them out?"
me: no, I can't
they: "OK. go and have them taken out."
my mom: "we can't, it takes forever."
we walked into the hall of the scans. I felt nothing.
so then it was immediately fine.
I did have with radiation. but with the fluid. because it was to look at all my veins and such.
She's amazing!
Is this something that could be helped by gestalt data? Process the same raw data with all three programs and code confidence levels based on how many programs agree about each voxel.
It seems like these studies can arbitrarily be quoted whenever someone is trying to make a point about the functioning of the brain, even if the person trying to disproof that someone is wrong. I'm curious about the implications in scientific debates.
I had a 3 disc fusion in my back, Oct 23rd of 2017. The metal they used is titanium. Would titanium respond badly in an MRI/fMRI?
My Dr that did the surgery insisted that it won't react to the screening when you fly, but I suspect it still will set off the machine. Those full body scanners.
Did someone say Step Back?
Fixing mistakes is an indispensible part of technological development
Is... Neil deGrasse Tyson shaming me for looking at boobs? I feel like he's judging me.
"... without exposing them to radiation." Correct me if I'm wrong, but magnetism is just a part of electromagnetism, and radiation is electromagnetic, isn't magnetism in some fashion a form of radiation?
I know someones thinking "they said I have Alzeimers, does this mean I'm alright? pls god"
Love the shirt lady. :)
... pervert
I need a link to the male version of a shirt with Neil deGrasse on it. For science...
Now THIS is a great host!
I fell asleep when I had an fMRI for an observational study lol
Who the fuck came up with the idea to look for brain signals in a dead salmon? It's a good idea. Also, did they eat it afterwards?
This presenter is phenomenal.
SciShow Psych love the shirt!
Where can I buy this shirt, oh btw great host👍🏻
Did "... and... squint" crack anyone else up :) ?
That's not a false positive! It means there soon will be zombie fish everywhere! Panic!!!
Plot twist, the salmon wasn't dead, or was a zombie.
I feel like Adobe could find a solution for this in a few years.
Love your t-shirt!
I usually like Brit on scishow, but this video, I feel like she was talking down to the viewer like we were collectively a 5 year old
I hate the loud noises these machines make. Not my kind of music. Sounds like soundeffects from old arcade games, but overmodulated and absurdly loud (and they are repetitive). Last semester I actually had a leture on how the MRI data is transferred into an image. It's pretty interesting, but of course, requires math.
I'll bet there would be a lot more sharing of information among scientists if they weren't practically in competition with each other to get published. Also, they'd share more studies that resulted in negative outcomes if those were published more. Perhaps if scientists weren't so dependent on being published in order to be rewarded for their efforts. How would that work? I dunno.
I spent much of this video trying to read her shirt.
Neil DeGrasse Tyson just staring at me thoughout the whole episode...
THAT SHIRT
lol, she has a deGrasse Tyson shirt. you do know that guy is still alive right? hey lady! that guy is still alive.
One wonders when we will be further from phrenology than closer to it.
Question, what does the tattoo inscription on your arm say?
Dat Neil deGrasse Tyson shirt is dope
I'm pretty sure the video picture is of a CT scanner and not an MRI
Is it me or does it seem like an MRI does basically the exact same thing as a microwave. So how come that energy imparted on water in your body isn't converted to heat energy? Is it because it's re-emitted?
Radioactivity comes from an unstable nucleus. X-ray is ionizing radiation, but it's not radioactivity.
David de Kloet x-ray is ionizing radiation tho
Did you see my comment before my ninja edit?
Those error corrections remind me of the recently discovered roll of glial cells among brain tissues and nerves. Maybe the pathways of thought processes are a little more chaotic than we believed and that nontheless the metabolism has some recoil or 'backfire' safe guards to help us sort our own thoughts or emotions. Science tends to try to put the finger on THE exact source of a cause when the synergy of the process might involve more than first meets the eye. After all i have a hard time believing in any form of absolute closed system when it comes to reguards of the end results and conclusions that studies reach toward. However, one thing I am not sure has been adressed is the risk which MRI machines have on living organisms. I can claim without a doubt that the lymphatic system gets overburdened from such an ordeal, somewhat similar to radiation poisoning at a lower level, but still hazardous.
Love the shirt Brit! Where did you get it? Is there a male version?
today I learned I shouldn't ever go near MRI machines or have an MRI. got metal in my face (jaw surgery).
Hard to read her right arm tattoo. N 24 33.753 W 81 49.140 ??? Key West, Florida?
Correction: "without exposing them to radioactivity, like an x-ray would" An x-ray machine will expose you to "ionizing radiation" not radioactivity. Radioactivity has to do with atoms undergoing radioactive decay, modern x-ray machines use high voltage electricity to create x-rays not radioactive elements. A fMRI machine also uses radiation, however it is much safer non-ionizing radiation.
Maybe she hid some treasure at those coordinates?
Right, but where can I buy that shirt?
Titanium is a metal that can go through a mri
So when I got my fMRI last year my brain was dead? Good. That is good.