Neuropsychology is the study of brain / behavior relationships. There is a substantial body of clinical research and findings and a number of organizations devoted to different aspects of this field of psychology.
Neurosciences on the Internet includes a searchable and browsable index of neuroscience resources available on the World Wide Web and other parts of the Internet. Neurobiology, neurology, neurosurgery, psychiatry, psychology, cognitive science sites and information on human neurological diseases are covered.
This site presents the results of several researchers on the origins of violence, mainly those of the developmental neuropsychologist James W. Prescott, Ph.D. (formerly NICHD/NIH). It contains many papers in full text, as well as the complete Time Life documentary movie "Rock A Bye Baby".