The relative effectiveness of salt stimuli for the rat

Determined the relative detectability of 8 salts over a molar concentration range of .0125-.80 in an experiment with 5 male hooded rats. The detectability of those salts, which have a strong sour or bitter quality, is substantially greater when compared with sodium chloride, than their relative effectiveness as determined by the size of the evoked response in the chorda tympani. It is suggested that, like quinine, these salts are more effective on the posterior tongue. (French summary)