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Swithers, S. E., M. W. Westneat and W. G. Hall.Electromyographic analysis of oral habituation in rat pups.PHYSIOL BEHAV 63(2) 197–203, 1998.—Rat pups show decreases in mouthing activity in response to a series of repeated oral infusions of a diet. This decrease in mouthing activity has been termed “oral habituation” and these changes have been readily recorded with simple behavioral observations....