Myelin & Frontal lobe develops behind the limbic system ...
The years spent morphing from child to adult, such as getting your license and driving all by yourself... more freedom and independence. G. Stanley Hall was one of the first psychologists to describe adolescence.
The time when we mature sexually, following a surge of hormones which may intensify moods and which trigger a series of bodily changes.
As teens mature, their frontal lobes also continue to develop . The growth of myelin (fatty tissue that forms around axons and speeds neurotransmission, enabling better communication with other brain regions. Puberty's hormonal surge and limbic system development help to explain teens occasional impulsiveness, risky behaviors and emotional "storms".
Pruning means that the abundance of neural connections achieved during the sponge-like soaking in of knowledge during the childhood period will be whittled down, shaped like a garden.
Teens seek thrills and rewards, but they can't yet locate the "break pedal" controlling their impulses. Such as fast driving, smoking and unprotected sex. They weigh the immediate benefits more heavily when reasoning from their gut.
Argument for the death penalty against 16/17 year olds. (Supreme Court). Teen brain's immaturity "in areas that bear upon adolescent decision making" Teens are less guilty by reason of adolescence. Declared that juvenile death penalties are unconstitutional.