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How Marijuana Impacts Teen Brain Development
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Hinweis der Redaktion
This is how the brain becomes hard wired and we set our patterns for later in life. Why we say older people are “set in their ways.” Child and teen brains are said to have plasticity/ malleability because the brain is more resilient and connections are not yet permanent. Toddler and teenagers have the most rapid mylenation and pruning
Nucleaus accumbens is part of pleasure reward center, plays a role in laughter fear addiction aggression and fear. Has the power to pull blood flow away from the pre-frontal cortex (thinking part) of the brain Hippocampus- storing and recalling memories Cerebellum- fine movement and balance, cordination Amygdala- the brain’s novelty factor- why things seem better when you’re high- because you don’t remember what they were like before. Recognizes the new and novel Hypothalamus (to a lesser extent) hunger and thirst A marijuana high causes changes in all of these areas, which may cause changes in other parts of the brain Why do we have sites in the brain that seem like they are meant to bind with THC? Anadamide- your body’s own cannabinoid, usually released during pain so that you don’t remember, like childbirth
skateboarder might fall if high Same part of the brain that alcohol effects causing stumbling
Retrieves relevant information Adds new memories to old ones trashes unimportant information Like Google for your memories Makes people feel like they are thinking outside the box, because they are not using their frame of reference, like experiencing things for the first time
Assigns emotional relevance to our experiences (how do you feel about) and emotional connectedness to others Regulates fear and causes a feeling of awe Novel events awaken the interest of the amygdala Heightened sense of novelty when high “ School is boring. Nothing interesting happens here. I can’t wait to get out of class and get high.” Amygdala becomes sluggish and athlete may not be able to respond quickly enough to new move of an opponent. He / she has lost their edge and maybe the game Tests in Airline pilots revealed slowed responses / reactions days after marijuana use This sense of paying attention, focus, is why many people believe that they are driving better when they are high, however, they are paying attention to everything (color of cars) instead of focusing on the important changes + slowed cerebellum (coordination and movement) Responses slowed for days after
(the brain’s messengers) We are hard wired to release dopamine (receive pleasure) from food and physical contact Continued marijuana use trains the brain to rely on drugs for feeling good (releasing dopamine) instead of finding and using other ways of feeling good After using, there is no reuptake of the dopamine molecules- the brain stops making it without the drug Dopamine receptors (lock and Key) become dulled so more marijuana is needed to get the same effect and less pleasure is received from other activities Some people release more dopamine from a high than others, these people say they “love” marijuana and some may use it everyday from the time they first got high- high potential for addiction Dopamine “gets our attention” being released in pleasurable and situations where we need to act, as such it is correlated with ability to concentrate.
Lack of clarity can cloud a person’s view of the real world Lack of integrative experience= not connecting the dots, getting it
Reinforcement especially if user surrounds themselves with other users and media that promote use Begin to associate drug use as the only way to have fun, relax, relieve boredom, stress and anger and the only thing the user enjoys doing Remember- you keep the connections you reinforce, you loose the ones you don’t The pleasure reward center can pull blood away from the thinking part of your brain- don’t think about it, just do it Teens often say they plan on stopping when they get older, but the longer you use and reinforce the connections in the brain, the harder it will become to stop
Gateway to cigarettes Stuck in the poppy field- never get to Oz If you continue to use a wheelchair instaed of walk, you will eventually loose your ability to walk
Use Link to view video from learn.genetics.utah.edu on Marijuana