... appear to reflect both an elimination of synapses and an increase in myelination, a process by which glial cells surround neuronal axons and enhance the speed and distance of signal transmission. A parallel increase in overall metabolism occurs in the frontal lobes during the first decade of life and then decreases during early adolescence to reach adult levels by the age of 16 ... that occur during learning. One brain region that is highly involved in memory formation and exhibits a tremendous amount of neural plasticity is the hippocampus. The hippocampus is an old cortical structure ...

• Word Count: 2963
• Approx Pages: 12
• Grade Level: Undergraduate