Page 30 - Prefrontal Cortex News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Clear to scientists what part of the brain is most affected. it's the prefrontal cortex. >> it's very important for planning, thinking, coordinating your behaviors. there are tons of marijuana receptors in this region, and we think that marijuana, particularly in the novice, can disrupt all of those behaviors. >> an impairment that hart cautions could be dangerous. especially when driving. >> you may prematurely hit your brakes. you may prematurely hit the gas pedal. a wide range of things. you may make a turn without looking more carefully. >> look at this experiment done by cnn affiliate kir...

Done too much? >> simple tasks become very frustrating, like mixing paint, and then just sort of get into this state of uh, you know. >> and why that happens is exactly what columbia university neuroscientist carl hart is investigating. >> exhale. >> research subjects in his lab smoke marijuana and then take a variety of cognitive tests. >> the effects will be disruption in memory, disruptions in inhibitory control. they will become slower at cognitive functioning, a wide range of things. these effects are temporary, but they're pretty pronounced, and they are clear. >> and it's slowly becomin...

Anxiety attacks in people. >> how do you know when you've done too much? >> simple tasks become very frustrating like mixing paint and then i sort of get into this state of duh, you know? >> and why that happens is what columbia university scientist carl heart is investigating. research subjects in his lab smoke marijuana and then take a variety of cognitive tests. >> the effects would be disruptions in memory. disruptions in inhibitory control. they will become slower at cognitive functioning. these effects are temporary but they're pronounced and they are clear. >> it's slowly becoming clear...

That is their prefrontal cortex which helps people think ahead, control their impulses, that's not fully developed until age 24. that explains why adolescents are much more vulnerable. >> there's something else that addiction experts believe is likely happening in the brain. when you smoke pot, the feel good chemicals that make up marijuana called canabinoids they cause your brain to stop producing it's only natural ones. when you stop smoking, you have none of your own. until your body kick starts production you feel lousy. so many people smoke again to feel better. in today's marijuana it co...

It can lead to panic attacks or anxiety attacks in people. >> how do you know when you've done too much? >> simple tasks become very frustrating. like mixing paint. and then just get into a state of ahhhhh -- you know. >> and why that happens is exactly what columbia university neuroscientist carl harp is investigating. >> exhale. >> research subjects in his lab smoke marijuana and then take a variety of cognitive tests. >> effects will be disruption in memory. disruptions in inhibitory control. they become slower at cognitive functioning. a wide array of things. they are temporary, but pronou...