Parents may feel that for a brief period of time that their teenager is inhabited by Invaded by another brain. The parents are 'thrown for a loop' when the kids get to be adolescents. The parents need to recognize that it is just a phase of child development.The period for the rapid brain growth will occur at Adolescence for baby Natalie.
The unexpected discovery that was found just behind the frontal cortex is a growth spurt, an overproduction of cells.