The elicitation and habituation of electrodermal orienting responses to auditory stimuli of 19 children with Down syndrome (DS) and a control group were compared. The DS children gave electrodermal orienting responses of a lower amplitude than did control subjects. No significant differences were found in either skin conductance levels or…

To investigate sensory dominance in early development, a series of studies examined six-month-old infants' processing of multisensory stimulus compounds. Findings indicated that infants discriminated changes in the temporal characteristics of the auditory component but not in the visual component. This and other findings suggested that auditory…

Involving 10-month-old infants, a series of studies examined responses to temporally modulated compound auditory-visual stimuli. Findings indicated that, although the auditory modality can dominate the visual modality at 10 months of age, the visual modality can process temporal information when the temporal relationship of the information in the…

This study investigated the multidimensional information underlying accurate speech perception as processed by children with mild to severe hearing impairments. Results suggested that the auditory dimension has a normal strength-of-processing level (thus normally distracting) but that the linguistic dimension has an underdeveloped…

Ten children (ages 5-6) and 10 adults participated in discrimination and selective adaptation speech perception tasks using a synthetic consonant-vowel continuum. Results support hypotheses of sensory processing differences in younger, normally developing children compared with adults and show that such abilities appear to be related to speech…

This study, involving 40 normal-hearing 6 year olds, substantiates the form equivalence of the Selective Auditory Attention Test. Analysis shows equal mean difficulty and significant correlations between lists in quiet and between lists presented with competing speech. (Author/JDD)