Adolescence:Its Psychology and Its Relatíons to
most head growth afterward. But as we move through adolescence, the brain undergoes extensive remodeling, resembling a network and
Forstarters, the brain's axons-the long nerve fibers that neurons use to send signals to other neurons-become grádually more insulated with a fatty substance called myelin (the brain's white matter),eventually boosting the axons' transmission speed up to a hundred times. Meanwhile, dendrites, the branchlike extensions üat
neurons use to receive signals from nearby a:cons, grow twiggier, and the mostheavily used synapses-the little chemical junctures acros which axons and dendrites pass notes-grow richer and stronger. At the same time, synapses that see little use begin to wither. This synapticpruning, as it is called, causes the brain's cortex-the outer layer of gray matter where we do much of our conscious
Anthr o p olo gy, S o c i ol o gy, S e x, Cr i m e, Religian and Education, believedthis period of "storm and stress" replicated earliet less civilized stages of human development. Freud saw adolescence as an expression oftorturous psyP hy siol o gy,
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chosexual conflict; Erik Erikson, as thé most tumultnous...