Parkinson's disease, a degenerative brain disorder, affects an estimated 0.25-0.50% of the population. Symptoms result from neuronal degeneration in the nigrostriatal dopaminergic pathway and include tremor, rigidity and gradual slow- ness of spontaneous movement. The cause of Parkinson's disease is only partially understood; both environmental factors and a genetic predisposition have been im- plicated in its etiopathogenesis. Neural transplantation is being used experimentally for providing an alternative biological source of dopamine both in animal studies and in experimental clinical...

This book presents an English synopsis of five of the most influential works written in the early twentieth century (in Spanish originally) by the Argentinian philosopher and psychiatrist Jose Ingenieros (1877-1925). They are presented together in English translation in one book for the first time. The Introductory Chapter is a biographical note on Ingenieros, who was Professor of Experimental Psychology at the Faculty of Philosophy and Letters of the University of Buenos Aires. The topics covered include biological psychology, criminology, ethics, and philosophy."