sentences:  During this time Sperry's friend Victor Hepburn invited him to lecture about his research at a symposium.There were professors from the California Institute of Technology in the audience of the symposium who, after listening to Sperry's lecture, were so impressed with him they offered him a job as the Hixson Professor of Psychobiology.In 1954, he accepted the position as a professor at the California Institute of Technology (Caltech as Hixson Professor of Psychobiology) where he performed his most famous experiments with Joseph Bogen, MD and many students including Michael Gazzaniga.