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The Teenage Brain

Planning 12 "Health" Presentation on the development of the teenage brain

Olga Azbel

on 25 February 2013

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Transcript of The Teenage Brain

Stages of Brain Development The Teenage Brain Birth to Toddler Brain development stages are definitely not complete.

As a result of brain development in the fetus, a baby is born with approx. 1 million neurons.

Functional maturity is attained by growing up. We develop the transfer of impulses and information (crucial for the brain to function) that takes place in synapses.

Development is shaped by the environment and our experiences. Early childhood is crucial for the early development of
intellectual and social-emotional abilities. Childhood Teenage Years Teenagers use a different part of their brains than adults. Instead of using their frontal lobe, they use the lower part of their brains - a place where more emotional, impulsive, and behavioral responses are.

less *Myelin in the frontal lobe = less effective electrical signal conductivity between neurons. This means that teens use it less.

Teens have more neuron growth, neurons are being connected during years of development. Synapses are fast growing sections of the brain that are unconnected, and are decreased and the amount of Myelin increases = gradual usage of the prefrontal cortex. Adult Now there is full use of the pre-frontal cortex - the area of the brain for executive thinking: planning, organizing, strategic thinking. This "mental merger" is not completed until around ages 25 -30.

Excess synapses have been cut during adolescence and now there is a better connection between lower and frontal parts of the brain. Senior Years Brain begins to lose it's ability to process information as rapidly. The first five years of a child's life are essential for brain development, motor skills Caitlin Pescott
Natasha Hewitt
Olga Nassinovskaia The Teenage Brain Environmental factors can influence brain development. But what does this mean for a teenager? The brain uses the amygdala more than the prefrontal cortex Project by: Planning 12 Period 1 THE END * Myelin: a protein that increases the speed with which the fibers connecting nerve cells can transmit impulses. Adolescence can be a hazardous age: mortality rates by injury between 15 and 19 are six times that of the rate between ages 10 and 14.

Crime rates and rates of alcohol abuse are high relative to other ages. there are enormous hormonal changes that take place that can change overall social behavior. Stress hormones can have complex effects. adolescents and adults engage different parts of the brain to carry out mental tasks requiring calculation and impulse control, or in reaction to emotional content. “The teenage brain is not just an adult brain with fewer miles on it; It’s a paradoxical time of development. These are people with very sharp brains, but they’re not quite sure what to do with them.”
-Frances E. Jensen the amygdala is responsible for instinctual reactions - developing early.
the frontal cortex (that controls reasoning) develops + matures later Exposure to drugs and alcohol, head trauma, etc. may interfere with normal brain development.

ex: Teens are more susceptible to alcohol-induced toxicity. Based on the stage of their brain development, teenagers are:
more likely to: less likely to: act on impulse
misinterpret/ misread social cues or emotions
get into accidents or fights or risky behavior think before they act
consider potential consequences
modify their behavior At this point, the brain is only 80% developed The part of our brains that processes information expands during childhood - peaking in girls at around 12 to 14, and around 16 in boys. multitasking, sensory overload, sleep deprivation, lack of physical education can hinder the ability to recall information "You can’t close down the world. All you can do is educate kids to help them manage this [information overload]"

David K. Urion from 5 years old, there is rapid growth of "grey matter" Good brain development from birth to about five years old leads to a good foundation for a prosperous and sustainable society. An absolutely accurate representation of the chaotic teenage brain: Simple activities and emotional bonding are essential at this stage of development. teehee :)
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