Development and control of licking in the guinea pig (Cavia porcellus)

Guinea pigs were taught to lick an electronic lickometer by successive approximations brought about by a gradually receding lickerandum-liquid feeder mounted in their home cage. All Ss learned to lick and obtain their total liquid intake by tongue licking. An optimum deprivation schedule was determined, and the response was brought under schedule control comparable to that of the rat.