Assistant professor University Missouri, Columbia, 1975—1980, associate professor, 1980—1983, professor, since 1984. Visiting professor Frankfurt University, 1979. Chairman, organizer 5th Annual Meeting Mid-West Neurobiologists, Columbia, 1982.
Advisory professor East China Normal University, Shanghai, since 1985. Advisory professor Zhejian Normal University, Ginhwa, China, since 1986. Member research board advisors American Biographic Institute, since 1986.
Member of American Association for the Advancement of Science, Northwest Academy of Sciences, International Society Neuroethology, American Society Zoologists, International Brain Research Organization of World Federation Neuroscientists, Chinese Physiological Society, New York Academy of Sciences, Overseas Chinese Life Scientists Association, Acoustic Society of America (psychological & physiological committee 1957-1987), Society Neuroscis.
1975 - 1980