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DocLightning
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The Human Prefrontal Cortex

Wed Sep 16, 2009 11:53 pm

The Prefrontal Cortex is a part of the brain up in the forehead that acts as a "censoring" system. When you want something, but having it RIGHT NOW is not a good idea, the prefrontal cortex kicks in and controls your behavior. One major difference between a human brain and, say, a dog brain is that a human brain has a far larger prefrontal cortex. Most of our "thinking" seems to go on up there.

In other words, the prefrontal cortex is why a dog wants to hump something...and he goes and does it, but a man will usually (albeit briefly) reflect on the local sex laws, first.  Wink

In children, the prefrontal cortex is immature and doesn't fully mature until around age 25, although most of the maturation is done by age 15-16. This is why teenagers tend to be a bit...headstrong at times.

The psychological experiment shown here is done on children who seem to be ages 6-8. It is a simple game, a test of prefrontal cortex function. Most of the kids did quite well. So you know, they only had to wait about 3 minutes and HAD been fed normally that day.

http://www.todaysbigthing.com/2009/09/15
-Doc Lightning-

"The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars."
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Continental
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RE: The Human Prefrontal Cortex

Thu Sep 17, 2009 12:57 am

That's rather interesting!

Quoting DocLightning (Thread starter):
In children, the prefrontal cortex is immature and doesn't fully mature until around age 25

So that's why you can't rent a car at most places until you are 25...
 
Fly2HMO
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RE: The Human Prefrontal Cortex

Thu Sep 17, 2009 1:43 am



Quoting DocLightning (Thread starter):
and doesn't fully mature until around age 25

Oh so if I just turned 25 and still do stupid life-threatening things what does that mean?  dopey   Wink
 
Phoenix9
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RE: The Human Prefrontal Cortex

Thu Sep 17, 2009 1:44 am



Quoting FLY2HMO (Reply 2):
Oh so if I just turned 25 and still do stupid life-threatening things what does that mean?

Some people are prepetually retarded. No cure, no solution Big grin
Life only makes sense when you look at it backwards.
 
Fly2HMO
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RE: The Human Prefrontal Cortex

Thu Sep 17, 2009 1:58 am



Quoting Phoenix9 (Reply 3):
Some people are prepetually retarded. No cure, no solution Big grin

And you know this how?  cheeky 


(HAAA! gotcha!!!  mischievous  )
 
mirrodie
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RE: The Human Prefrontal Cortex

Thu Sep 17, 2009 2:13 am

DOc, good read. Glad to see you are using your time to such an endeavour.

Quoting DocLightning (Thread starter):
In children, the prefrontal cortex is immature and doesn't fully mature until around age 25, although most of the maturation is done by age 15-16. This is why teenagers tend to be a bit...headstrong at times

How true. But that 3 days not fed disclaimer was a shock for a moment.
Forum moderator 2001-2010; He's a pedantic, pontificating, pretentious bastard, a belligerent old fart, a worthless st
 
Phoenix9
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RE: The Human Prefrontal Cortex

Thu Sep 17, 2009 2:46 am

Quoting FLY2HMO (Reply 4):
And you know this how?

I do Psychiatric Research...so thats how I know 

Sorry doc, I'm a bit sleepy right now so can't add anything informative to you post. But I'll add something tomorrow  

[Edited 2009-09-16 19:52:45]
Life only makes sense when you look at it backwards.
 
Fly2HMO
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RE: The Human Prefrontal Cortex

Thu Sep 17, 2009 2:53 am



Quoting Phoenix9 (Reply 6):
By do Psychiatric Research.

On yourself?  Wink
 
AverageUser
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RE: The Human Prefrontal Cortex

Thu Sep 17, 2009 2:53 am



Quoting Continental (Reply 1):
So that's why you can't rent a car at most places until you are 25...

I would say it's the male drivers and their testosterone levels beginning to decline ..
 
Fly2HMO
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RE: The Human Prefrontal Cortex

Thu Sep 17, 2009 4:33 am



Quoting Averageuser (Reply 8):
I would say it's the male drivers and their testosterone levels beginning to decline ..

Good thing they've never caught me driving the piss out of rentals Big grin
 
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DocLightning
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RE: The Human Prefrontal Cortex

Thu Sep 17, 2009 6:20 am



Quoting Phoenix9 (Reply 3):

Some people are prepetually retarded. No cure, no solution Big grin

Ron White: "You can't fix stupid!"
-Doc Lightning-

"The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars."
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DocLightning
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RE: The Human Prefrontal Cortex

Thu Sep 17, 2009 5:30 pm



Quoting Continental (Reply 1):

So that's why you can't rent a car at most places until you are 25...

What usually happens is that older teens and very young adults are quite good in "cold" situations. So they'd have no problem with the marshmallow test.

But in "hot" situations that are emotionally charged, older teens and young adult prefrontal cortices tend to get shut off, and so they and sometimes make decisions "in the heat of the moment" that weren't quite thought through.

This is why a 19yo, caught in the middle of a robbery, is more likely to shoot the person who discovers him than a 30yo, who will have a moment of "I can get off on breaking and entering or I can go for life in jail... better just surrender."

It also explains a lot of driving laws, like why teens are often not allowed to drive with other teens in the car. Teens get into silly games like "only pussies use the brake pedal" and with all their friends jeering and cheering, can wind up making some silly decisions that an adult wouldn't.

This is also why soldiers are drafted at 18. They don't tend to think about the death and dying bit as much as older people.

There is now evidence that there is continuing maturation and changes in the brain throughout the lifespan, which makes sense. But it seems as if decision-making capacity settles down around 25 (+/-3-4 years).

In HMO's case...well... he doesn't have a prefrontal cortex.  duck 
-Doc Lightning-

"The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars."
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DocLightning
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RE: The Human Prefrontal Cortex

Thu Sep 17, 2009 9:42 pm

Oh, BTW, I misspoke. The test lasted FIFTEEN minutes. Now that's a mean thing to do to kids that age!
-Doc Lightning-

"The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars."
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Fly2HMO
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RE: The Human Prefrontal Cortex

Thu Sep 17, 2009 10:12 pm



Quoting DocLightning (Reply 11):
In HMO's case...well... he doesn't have a prefrontal cortex.



 Wink
 
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DocLightning
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RE: The Human Prefrontal Cortex

Thu Sep 17, 2009 10:22 pm



Quoting FLY2HMO (Reply 13):

That's about right...

(where do you get those?)
-Doc Lightning-

"The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars."
-Carl Sagan
 
Fly2HMO
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RE: The Human Prefrontal Cortex

Fri Sep 18, 2009 4:24 am



Quoting DocLightning (Reply 14):
(where do you get those?)

The answer is right in front of your nose, but I'm not giving away my secret weapons to my enemies any time soon  mischievous 
 
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DocLightning
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RE: The Human Prefrontal Cortex

Fri Sep 18, 2009 10:31 am



Quoting FLY2HMO (Reply 15):

The answer is right in front of your nose, but I'm not giving away my secret weapons to my enemies any time soon mischievous

Yes, but you always come across the right one..,.
-Doc Lightning-

"The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars."
-Carl Sagan

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