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Acta Comportamentalia

Print version ISSN 0188-8145


PASSARELLI, Anna Christina Porto Maia et al. Auditory-visual discrimination with lip reading clues in death children. Acta comport. [online]. 2013, vol.21, n.2, pp.175-192. ISSN 0188-8145.

The aim of the study was to verify, through two different learning problems, if five users of cochlear implant could learn auditory-visual conditional discriminations with and without the aid of lip reading clues, and if equivalent stimuli classes would be formed. Conditional discriminations between spoken words and pictures, and between spoken words and textual stimuli were taught through matching to sample and blocked trial procedures. For some of the participants, auditory-visual trials were repeated with the aid of lip reading clues when mistakes were made. Tests for classes of equivalent stimuli assessed the emergence of conditional relations not directly trained. Additional tests assessed expressive and receptive repertoires before and after teaching tasks in order to verify possible gains following conditional relations training.The participants' performance demonstrated learning of conditional relations, with and without lip reading clues, ranging from conventional words to pseudowords, and also the emergence of equivalent stimuli classes. Four participants demonstrated emergence of classes of equivalent stimulus in Problem 1 and two participants demonstrated emergence of classes of equivalent stimulus in Problem 2. Participants exhibited better performance at the final tests of expressive and receptive repertoires, compared to their initial performance. It is concluded that use of lip reading clues along with conditional discrimination teaching procedures may improve cochlear implant users' performance at receptive and expressive tasks.

Keywords : children; cochlear implant; lip reading clues; stimulus equivalence.

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