In 1983, Paul joined the California Institute of Technology as a professor of neuroscience. Paul co-edited a book called "The Origins of Schizophrenia" in 2011. He also published a book on
neuroimmunology,
Infectious Behavior: Brain-Immune Connections in Autism, Schizophrenia and Depression, and continued to blog on topics related to these fields until his death in June 2014. Throughout his career, he focused on human diseases, such as Huntington's Disease (HD), Parkinson's Disease, and Alzheimers. He was on the scientific board for the Hereditary Disease Foundation for almost 30 years. He received research funding from the National Institutes of Health (NIH). In addition, he received research funding from non-profit organizations such as
Autism Speaks, the
McKnight Foundation, the Simons Foundation, the
Hereditary Disease Foundation, and private donors. He was committed to training young scientists and doctors. He established the MD/PhD programs between Caltech and USC, and Caltech and UCLA. He spearheaded training programs at Caltech for the California Institute of Regenerative Medicine (CIRM), obtaining grants to support students researching stem cell science from neighboring institutions such as Pasadena City College, Cal Poly Pomona and CSULA. ==References==