A pioneer in brain and memory research, Dr. Daniel Alkon has written a new book, called "Memory's Voice: Deciphering the Mind-Brain Code." He uses the example of one disturbed person to look at how the brain remembers -- a childhood friend who was abused by her father and emotionally scarred. Alton suggests that people like his friend never complely unlearn behavior brought upon by such traumas, and that the impressions made on a child's memory will permanently linger in the complexes of the brain.