n reply to Janet Patersonn @ibli.pbm Iwould like to call atention to a major problem that could arise if neurons can be induced to replicate in response to damage or genetic malformation. INSIDE THE BRAIN by Roland Kotulak (publ. 1996 by Andrews & McMeel, Kansas City) is used by its reviewer in the N.Y. Times Book Review, George Johnson, to criticize the optimistic view that restoration or renewal of injured areas of thr brain will give genetic and biochemical advantage to (relatively well off) old people at the expense of poor children. "As more taxes go to prop up graying America, it will be that much harder to find for the mammoth educational reforms and social progress needed to fight the epidemic of preventable brain damage. If politics is reallly just the calculus of greed, then research money will be channeled into gerontology, not saving young lives." Strong guilt medicine for (elderly) Parkinson disease patients. Taking from the advantaged, politically powerfull, to give to the physicaly and mentally handicapped "...will not lead to a shrinking pool of people taking their place. A dismayingly large segment of the population will be too slow, too jittery and too explosive for work that requires patience and contemplation." (Quote from the reviewer). The reviewer of this book, the subject of which is of great interest to PD patients, knows little of the history and politics of medical science, but he makes up for it in ignorance. Steven Steven E. Mayer, Ph.D.