Recent work has investigated the origin of infant colour categories, showing pre-linguistic infants categorise colour even in the absence of colour words. These infant categories are similar but not identical to adult categories, giving rise to an important question about how infant colour perception changes with the learning of colour words. Here…

The current study investigated whether vocabulary relates to phonetic categorization at neural level in early childhood. Electroencephalogram (EEG) responses were collected from 53 Dutch 20-month-old children in a passive oddball paradigm, in which they were presented with two nonwords "giep" [[voiced velar fricative]ip] and…

Here we report, for the first time, a relationship between sensitivity to amplitude envelope rise time in infants and their later vocabulary development. Recent research in auditory neuroscience has revealed that amplitude envelope rise time plays a mechanistic role in speech encoding. Accordingly, individual differences in infant discrimination…

The study found that providing feedback and goals in an accelerating standards condition had a positive effect on the learning of eight retarded children (mean age 9 years) on a five-choice discrimination task requiring vocabulary and perceptual competence. (Author/DB)

A correction procedure, including interruption, physical guidance, verbal instruction, and repetition, was used to train five students with severe/profound mental retardation to reject unmatching referents to their gesture mands. Trainers are urged to assess student response when items not matching the referent of a prior request are offered.…

Two experiments with a total of 17 adolescents or adults with severe mental retardation evaluated the potential of exclusion procedures (selection of an undefined object in comparison with a defined object) as a means of training basic naming skills. Reliable exclusion and naming performance were demonstrated in nearly all subjects. (DB)

Four students (ages seven to nine) with moderate mental retardation were successfully taught to name photographs of foods using a progressive time delay procedure. Presentation of the supermarket grocery department as part of the discriminative stimulus was effective in increasing the percentage of correct responding. Some generalization occurred…

This study, with 161 children with and without language learning problems, tested the hypothesis that as children's language development matures, factor-analytic structural changes occur that are associated with measurements of fine-grained auditory discrimination, receptive vocabulary, receptive language, speech production, and 3 performance…