2-Minute Neuroscience: Prefrontal Cortex
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- čas přidán 3. 09. 2019
- The prefrontal cortex (PFC) is the area of the brain that is anterior to, or in front of, the motor cortex. It is most commonly associated with executive functions: cognitive processes that involve controlling short-sighted behavior to act with a goal in mind. In this video, I discuss the anatomy and general function of the PFC.
For an article (on my website) explaining the prefrontal cortex, click this link: neuroscientificallychallenged...
TRANSCRIPT:
The term prefrontal cortex, or PFC, can be used to refer generally to the part of the frontal lobe that is anterior to, or in front of, the motor cortex.
Neuroscientists generally further divide the PFC into subregions, and while there is no clear consensus on what those subregions should be, some common demarcations include the dorsolateral, dorsomedial, ventrolateral, ventromedial, and orbitofrontal regions.
The PFC makes up a substantial proportion of the entire brain, and thus is not surprisingly involved in a long list of functions. But it is most commonly associated with executive functions. There isn’t a precise definition for the term executive functions, but it generally refers to processes that focus on controlling short-sighted behavior to be able to act with a goal in mind. This may include things like self-control, planning, decision-making, and problem-solving. Because these are complex cognitive functions, it is unlikely any one brain region is solely responsible for them, and more likely they depend on distributed networks of brain regions. Nevertheless, the PFC seems to play a critically important role in executive functions---a hypothesis supported by neuroimaging research and cases where the PFC was damaged and executive functions impaired. Although each of the subregions of the PFC is typically associated with slightly different aspects of cognition, we are not yet at the point where we can confidently assign specific roles to PFC subregions.Most evidence suggests that the executive functions of the PFC are accomplished due to the interaction of these subregions and their communication with other areas outside the PFC. One general model of PFC function is that it receives sensory information about the external world, uses that information to plan responses, and then communicates with other areas of the brain to enact a response, which might involve anything ranging from movement to simply a redirection of attention.
References:
Carlén M. What constitutes the prefrontal cortex? Science. 2017 Oct 27;358(6362):478-482. doi: 10.1126/science.aan8868.
Purves D, Augustine GJ, Fitzpatrick D, Hall WC, Lamantia AS, Mooney RD, Platt ML, White LE. Neuroscience. 6th ed. Sunderland, MA. Sinauer Associates; 2018.
Thanks to Nicole Lookfong for help with fact-checking the script for this video. - Věda a technologie
Fabulous way of staying on Top of the Game..
I am dyslexic and I find
This
2 mins study a Fabulous way to store vital information....in my own brain 🧠
Belfast Ireland 🇮🇪😎
The very fact that we can know anything about our brains is mindblowing. Literally.
brain studying itself! it cannot get more meta
Amazing!!!!! Keep up the excellent work!
Thanks for your amazing video!!!
Short sharp and directly to the point. My ADHD brain LOVES it!!!
Yeah! A new video! Keep them coming 👍
Love your videos (:
These videos are perfect
Thank you! really nice and concise intro to the prefrontal cortex
No thank you giga chad
Another Amazing video!! I have been watching and sharing your content for years. There is surprisingly so few neuroscience channels on CZcams. Keep up the great work. You motivated me to start my own neuroscience channel recently! Maybe we can collaborate in the future on some videos! Cheers
Thanks! Great job on your videos and good luck! CZcams needs more good neuroscience content!
@@neurochallenged i'm suffer from prefrontal cortex dorsolateral damage. Is this resolve? My doctor doesn't answer any question.
Cus it's too creepy for the general public to consider...psychology is not for the faint hearted
Thanks for the video.
I love learning about psychopharmacology and the brain but the more I learn the more I hear things like "isn't really known". I love it. Makes me want to learn!
Could you maybe do a video about what happens to a brain during a seizure?
Yes, the more I learn about the brain the more I have to force myself to accept how much we still don't know...Here is a video on epilepsy that talks a bit about what happens during a seizure: czcams.com/video/OGFQhLPaaOQ/video.html
@@neurochallenged Can you do it? I love your voice btw.
@@nickjohn2051 Do you mean can I force myself to accept it? Yes, definitely! It's one of the things that makes the brain so intriguing. And I have a strong distaste for the alternative, which is pretending or assuming we know more about the brain than we really do.
And thanks for the compliment...I have had some really varied feedback about my voice. Some people like it and some people really seem to hate it. For better or worse, it's the only one I've got!
Thank you ❤️ 💚👍
Thanks!
Super nice
Thank you
If I soak Dorsolateral in a substantial amount of DMT , is that safe?
That's what probably happens during lucid dreaming and astral projection
This makes no sense lol
0😊
I am here for the coomer meme explanation, but cool video!
God dammit I was looking for this on your channel before I made my video on the prefrontal cortex haha. You upload it 3 days after I finish!? Curse you neuroscientifically challenged (also love the vid)
Haha, sorry I'm not sure why I waited so long to make a video on the PFC!
@@neurochallenged such a cool brain region. keep up the good work dude, and good luck with the book!
@@joshporters
Thanks! And good luck with your channel! Nice videos!
what is the best supplements to heal PFC from addiction?
Maybe the PFC doesn't really have specific roles, and it's main purpose is to be like a "manager" to the brain. It receives stimuli from other regions of the brain and is able to translate these relays into a language that makes it easier for it to analyze and therefore plan and make decisions. I'm just making assumptions however, I have no history in this field, so any corrections would be appreciated.
Partially correct, but the PFC is very involved in working memory, inhibition and higher cognitive functions like solving math problems for example. It does serve specific roles, but as you mentioned, it also seems to play a big role in translating various inputs from other parts of the brain into behaviour and decisions.
@@giljamolislagers7894
Working memory (A cognitive system)
Inhibition (a cognitive ability)
Attention (a cognitive process)
Cognitive flexibility (a property of a cognitive system)
Planning
Problem solving
Decision making
Is this the same thing as "frontal lobe"? Someone was talking to me about the frontal lobe and when I looked it up to learn about it it, the websites seemed to imply it was another name for "pre frontal cortex" since they seemed to be using the terms interchangeably.
For some extra context, I'm going through a breakup and reached out to a group for advice, explaining what had been going wrong in the relationship, and how my ex and I had tried to end on good terms (because we still love each other despite how we couldn't make the relationship work), and we'd said it might not be the end, maybe we could try and rebuild our relationship after some time has passed and I've gotten more mature to be able to handle such a complex adult relationship. The person who gave me advice mentioned I'm apparently only six months away from my "frontal lobe" being developed as I mentioned I'm 23 (though when I looked it up many sites seemed to say it finishes developing at 25).
The prefrontal cortex spans much of the frontal lobe, but not all of it. The motor cortex, for example, makes up a sizeable portion of the frontal lobe, but it's not included in the prefrontal cortex.
Watch siddhart warriers neuroscience in brain💕u’ll love it
#1697
I have a huge scar on my face in this exact spot, I wonder if mine got damaged.
nice
Rien ^^^ yes
@sam yemen Yes. Thank you
wish you had one on cognition.
What a diagnosis for a Slanted Forehead?
What is the name of centre line of brain! Make a video about that
It's called the 'interhemispheric divide', or the 'longitudinal fissure'.
en.wikipedia.org/wiki/Longitudinal_fissure
A slice (physical, or digital image) straight down along it would be a 'sagittal slice', I think because right above it within the skull is a venous sinus (collection site for the return of blood to the heart) named the sagittal sinus, which looks a little like an arrow, referring to the constellation Sagittarius, the bowman.
real real (my PFC is turning off when people talk to me)
exactly true that i have some damage to my PFC my decision making skill is very poor
me too
What do a neuroscientists do for a living? Which possibilities?
If we're talking about someone with a PhD in neuroscience (and not any sort of medical degree), there are many possibilities but I'd say there are two main paths: 1) Many go into academia (e.g. colleges and universities), where they teach and/or do research, and 2) Others go into industry, doing research for organizations like pharmaceutical companies. Of course, there are lots of jobs that someone with a degree in neuroscience might pursue, but I think these two categories account for a large proportion of them.
@@neurochallenged What about creating nanotechnology to elevate the brains ability beyond human levels. For example a device to increase ones intelligence or what have you.
@@rejectevolution152 This is one very specific application of neuroscience, so yes there are some neuroscientists working on this type of thing but it's a pretty small subset of neuroscientists in general.
My PFC is s**t today. It keeps procrastinating. I engage in all easy tasks but hard tasks, the necessary tasks. :))
#1697
"Scientists have long believed that a brain region called the prefrontal cortex (PFC) selects what information to focus on."
This is mentioned in the quean from 1400 years
Blud wasn’t lying it really was 2 mins ☠️
And they wasted time
Override me
The presenter speaks too fast!!
Thank you