Scientists Discover The Obvious - Teenage Brains Are Wired To Be Impatient And Impulsive!

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Photo Credit: womenshealthfoundation.org

The words teenager and patience are rarely uttered in one sentence. Adolescents are well-known for being irritable, impulsive, and craving instant gratification. According to the researchers from Berlin-based Max Planck Institute for Human Development, it is not because of hormones or that teens like to "act up." It is simply because the structural connections inside their "amygdala" or emotional center of the brain, are still developing, limiting their ability to think ahead about the consequences of their actions.

The study that was published in the journal PNAS in May 2015 was led by researcher Wouter van den Bos. It involved 50 individuals between the ages of 8 and 25. Each volunteer was asked the same question - Would you rather have €20 now or €50 in a month? As expected, the impatient adolescents mostly opted for the instant cash.

Curious to see if there was a scientific reason for this predictable choice, the scientists used magnetic resonance imaging (MRI) to measure the activity and structural connectivity of the regions involved in the decision-making process. Sure enough, there was a difference in how the adult and teenage brains functioned.

Whenever we make a decision, two critical areas of the brain are involved. The dorsolateral prefrontal cortex that plans for the future, and the striatum that evaluates the rewards of the decision. In teenagers, the connection between the two is still developing. Therefore, the dorsolateral prefrontal cortex's influence on deciding which is the better option is somewhat limited. Hence, teens choose things that are instantly gratifying and get irritable when prevented from doing so.

Photo Credit: Allan Ajifo CC BY 2.0 , via Wikimedia Commons

According to Wouter van den Bos, "It’s not that adolescents don’t plan for the future at all. But when they make decisions, they focus much more on the here and now." The researcher says that "Adolescence is a training ground for the brain. (However), although it’s more difficult for adolescents to decide against short-term rewards, they are capable of doing so."

A 2012 study by Cornell University neuroscientist B.J. Casey came to a similar conclusion. The researcher said that teens are not reckless because they underestimate the risks, but because they find the rewards "more rewarding" than adults. Another study discovered that the "rewards" section of teen brains lights up even brighter when there is a peer watching, causing them to take unnecessary risks.

But like Wouter van den Bos, B.J. Casey also concluded that when teens take a moment to think, they are as capable of making rational decisions as adults. So the next time you are planning on doing something impulsive, take a step back and think - Is the reward worth the risk?

Resources: mbib.de, huffingtonpost.com, cnn.com

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455 Comments
  • christian_daly
    Christian DalyMonday, December 2, 2019 at 11:19 am
    im 13 in 8th grade explains alot
    • slushie
      slushieSaturday, April 20, 2019 at 7:46 am
      oh dear, I DON'T TO GO TO 6TH GRADE!! me want to stay in 5th
      • sweetcheese
        sweetcheeseMonday, March 4, 2019 at 8:09 am
        I am 9 going on 10 ..... do I count as a preteen!?!?!?
        • sweetcheese
          sweetcheeseMonday, March 4, 2019 at 8:03 am
          So when I become a teen, I can blame being crabby on this and my puppy is sleeping on me right now!!!!😂
          • ajg16
            ajg16Friday, March 1, 2019 at 2:58 pm
            I'd go for the €50 now
            • typarmesean
              typarmeseanTuesday, October 9, 2018 at 6:17 am
              The Mysteries Of The Teenage World: Extended
              • DragonMonday, October 8, 2018 at 11:13 pm
                Yes and no,teenagers are inpatient because of this but we shood also try to think more before we act.🐲
                • ajg16
                  ajg16Friday, March 1, 2019 at 2:56 pm
                  True
                • ajg16
                  ajg16Monday, October 8, 2018 at 7:03 pm
                  So basically when my family complains I'm being to "crabby" I can blame it on this?
                  • bacon_bitzz
                    bacon_bitzzThursday, October 4, 2018 at 3:53 pm
                    Woah! DUh!!!! I mean I thought human race ones that from the beginning! I am 13... Do I count as a "teenager"?
                    • sweetcheese
                      sweetcheeseMonday, March 4, 2019 at 8:06 am
                      Technology yes, but some people consider 14 to be a teenager.
                      • ajg16
                        ajg16Monday, October 8, 2018 at 7:00 pm
                        Yeah I think 13 is considered teenager
                      • LemonTuesday, September 11, 2018 at 7:33 pm
                        interesting