[Localization of the sensory projection areas in the cerebral cortex of the dolphin, Tursiops truncatus]

Using the evoked potential technique, studies have been made on localization of the projectional sensory areas in the cerebral cortex (visual, acoustic and somatosensory) of the porpoise T. truncatus. Distribution of these projectional areas in the porpoise is quite different as compared to that in other mammals. Visual and acoustic areas are shifted to the dorsal part of the hemisphere, all the sensory areas investigated exhibit a direct contact with each other.