%0 Journal Article %T Discrimina£¿£¿o simples com mudan£¿as sucessivas na fun£¿£¿o dos est¨ªmulos: aprendizagem em beb¨ºs %A Silva %A Fl¨¢via Teresa Neves %A Souza %A Carlos Barbosa Alves de %J Psicologia: Teoria e Pesquisa %D 2009 %I Scientific Electronic Library Online %R 10.1590/S0102-37722009000400012 %X this study investigated the acquisition of repeated shifts of simple discriminations (rssd) in three infants. animated images were presented on a touch sensitive screen. the procedure started off with a two-choice simple discrimination training (sd) with shifts in the stimulus function until all stimuli had functioned once as s+ and once as s-. afterwards, all the three stimuli were presented in the same trial completing a rssd cycle. two of the infants learned the rssd with the two-choice procedure and one infant learned the sd with two stimuli. the replacement of the stimulus sets throughout the training, characterized as a multiple exemplar training, seems to have contributed to the infants' engagement in the task as well as to the acquisition of the discriminations. %K symbolic repertoire %K simple discrimination %K conditional discrimination %K infants. %U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S0102-37722009000400012&lng=en&nrm=iso&tlng=en