Abstract
In seven species of primates (Tupaiaglis, Loris tardigradus, Nycticebus coucang, Galago senegalensis, Callithrix (Cebuella) pygmaea, Saguinus (Leontocebus) tamarin, Saimiri sciureus) the thresholds of taste were ascertained for saccharin and dulcin with a two-tube continuous intake procedure. These physiological data were compared with those in Homo sapiens, some other mammals and a lower vertebrate (fish). For a special reason it should be found out, if the primates are able to discriminate between tap- and distilled water. The physiological values are discussed with regard to a mechanism of taste in vertebrates.

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