Adolescent Brain Growth

What in the World Are They Thinking?

(Adolescent Brain Growth)

At one time or another, most parents of adolescents and teenagers have asked themselves “What in the world is he (or she) thinking?” in reference to behaviors or decisions of their middle-school or early-high-school aged child. New research suggests that the risk-taking behaviors, impulsiveness, and questionable decision making seen in this age range may be due to their still-developing brains. Adolescent and teenage behavior is not simply a matter of willful stubbornness or determination to drive their parents and teachers crazy. Early studies blamed increased hormone levels flooding the body for the often unpredictable, hotheaded, and immature conduct of pre-teens and teens. Hormones probably play a big role in a child’s behavior, but recent studies show that the brain undergoes a growth spurt at adolescence which has a big impact on a child’s behavior and thinking. Scientists have found that an area of the brain called the prefrontal cortex “the part of the brain in charge of executive functions, like planning, organizing, setting priorities, making sound judgments, anticipating consequences, controlling impulses, and calming unruly emotions, is the last part of the brain to mature. In teens, the prefrontal cortex is „asleep at the wheel‟.” (Source: Pat Crum, DeVos Children‟s Hospital, Grand Rapids, MI)

 

What Can Parents Do to Help Their Teens?

                 

 Adjust your expectations of teens. The brains of teens simply are not as fully developed as the brains of adults, so teens cannot think like adults even though they may physically look like adults.

 

 Predict that teens will “think” with their emotions more than they will think with their brains and use common sense. They may favor short-term benefits over long-term results.

 

 Help them think through problems, consider their options, and make reasonable decisions.

 

 Guide your teen, but avoid making all of his/her decisions. Discuss choices and consequences during calm and stress-free times to help prepare your teen for the times when he/she will need to make on-the-spot decisions.

 

 Supervise your teen and stay involved in his/her activities, but become more of a “consultant” than a “manager”.

 

 Respect the emerging abilities of your teen, but do not give free rein for him to be totally on his own just yet—his ability to make sound decisions is still developing. Teens still need their parents‟ guidance even though they don’t think they do!


 

 “To understand how adolescence, at times, can seem to combine the worst aspects of adulthood and childhood—confronting us with big, strong, intelligent people who may sometimes act like two-year-olds—we must consider some very different aspects of adolescent brain development.” It used to be thought that the structure of the brain was complete in adolescence, but new technology (magnetic resonance imaging, MRI) has made it possible to show that the teen brain is still a “work in progress”, far from mature, until well into a person’s 20‟s. The development of the teen brain involves an enormous overproduction of connections between brain cells. Surplus connections mean that teens cannot keep track of multiple thoughts. By about age 18, the connections which are “hardwired” by experience are kept and the rest are trimmed away. This trimming increases the power and efficiency of brain function. Teens are creating their own brains, in a way. Whatever they choose to learn or experience will be hardwired and kept.

(Sources: The Dana Forum on Brain Science, Vol. 5, 2003; Pat Crum, DeVos Children‟s Hospital, Grand Rapids, MI)

 

How Can Parents Aid in the Brain Growth of Their Adolescents?

 

  It’s unfair to expect adolescents and teens to have adult levels of thinking, reasoning, and behaving before their brains are finished being built. Adolescents undergo remarkable brain growth leading them to the eventual maturity that we would expect them to have in their late teens and early twenties. The more technical and more advanced the studies of brain development become, the more they lead us back to some very basic beliefs of child-rearing: spend loving, quality time with your children. The brain is largely wired for social interaction and for bonding with loving parents and caregivers.

“PEN Notes” are publications of the Parent Education Network, a project of Parents Helping Parents of WY Inc., funded by a grant from the US Department of Education, Office of Innovation & Improvement, Parent Options & Information. Views expressed in “PEN Notes” are not necessarily those of the Department of Education.