Ph.D. 1976, Comparative/Experimental Psychology, University of Hawai‘i
M.S. 1970, Experimental Psychology, California State Univ.-San Jose
B.A. with distinction 1967, Experimental Psychology, California State Univ.-San Jose
Research Interests
Research interests focus on the sensory and perceptual processes of dolphins and small whales. Past research has focused on taste
reception, vision, hearing and echolocation of odontocete cetaceans. Current investigations are on the following species: bottlenosed dolphins
(Tursiops truncatus), Risso’s dolphins (Grampus griseus), false killer whales (Pseudorca crassidens), and Melon-headed
whales (Peponocepala electra).
Currently conducting research on hearing (sound localization, low frequency audiometrics, evoked
auditory potential hearing tests), echolocation (discrimination of buried objects, basic capability of Risso’s dolphin, effects of noise on
odontocetes, and modeling discrimination abilities, as well as the examination of hearing processes while the animals echolocate).
We are also concerned about echolocation and fish net avoidance and the effects of loud low frequency sounds on the hearing and behavior of
whales and dolphins.