“…The first reported alternative to shock was contingent use of lemon juice upon the demonstration of pre-rumination behaviors described as ''vigorous tongue movements'' (Sajwaj et al, 1974). Several studies since that time have demonstrated the efficacy of this method both with ''normal'' infants, and mentally retarded adolescents and adults (Becker, Turner, & Sajwaj, 1978;Hogg, 1982;Marholin, Luiselli, Robinson, & Lott, 1980). Although these techniques produced significant and beneficial results (Demchak & Halle, 1985), concern was raised whether such practices produced negative side effects or were ethical and humane treatments for these individuals (Mayhew & Harris, 1978;Rollings, Baumeister, & Baumeister, 1977).…”