Scientists have discovered that a mysterious group of neurons in the amygdala remain in an immature state throughout childhood, and mature rapidly during adolescence, but this expansion is absent in children with autism, and in mood disorders such as depression, anxiety, bipolar disorder, and PTSD.

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Scientists have discovered that a mysterious group of neurons in the amygdala remain in an immature state throughout childhood, and mature rapidly during adolescence, but this expansion is absent in children with autism, and in mood disorders such as depression, anxiety, bipolar disorder, and PTSD.