Comparing the effectiveness of four methods for training young children (4-4.5 years) in the skills of visual discrimination necessary to letter knowledge acquisition, this study indicates that training in oral description of critical cues of letters contributes to superior achievement in learning to match letters. (JC)

This study measured the differential effects of simplified and typical verbal antecedents on acquisition of picture discriminations for four preschool children with autism. During baseline probes, participants emitted no correct selection responses to pictures of common stimuli during either simplified or typical verbal antecedent conditions.…

This study investigated the response behavior of nine infants, aged 13-15 weeks, to a recurrent pattern of visual and verbal stimuli presented by their own mothers and by female strangers. The infants were presented with the following 2-minute sequence (repeated 3 times): (1) one-half minute of an unknown female leaning over the crib with a…