Six experiments involving 192 infants and 1 experiment with 16 college students examined sensitivity to acoustic correlates of phrasal units in English. A basic finding is that nine-month-old infants are sensitive to acoustic markers that correspond to major phrasal units, a sensitivity that develops after six months. (SLD)

As follow up to a study which compared forced-choice preferential looking (FPL) with pattern visual evoked potential (VEP), this study increased the VEP success rate and improved agreement between the FPL and VEP acuity estimates by using horizontal bar stimuli for young preverbal children (n=17) with nystagmus. (Author/DB)

Addressed three issues in a description of techniques used to study how people learn structured sequences. These are the content of what is learned, the role of conscious awareness in syntactic learning, and the role of limited-capacity processing or focal attention in syntactic learning. (Contains 86 references.) (Author)

A fading procedure was successfully used to maintain high levels of compliance obtained with presenting high-probability requests immediately antecedent to low-probability requests in both a 5-year-old boy with developmental disabilities and a 15-year-old girl with developmental disabilities (for whom rephrasing of "don't" requests to…

Four hearing-impaired children (ages 9-11) with learning problems answered questions focused on picture description. The children understood question words but answered the questions incorrectly 75 percent of the time. The children had difficulty determining the topic of discourse, were confused by the sequence in classroom discourse, and relied…

The visual event-related potentials and concurrently measured fixation times of 20 nonretarded autistic children (ages 5-15) were compared with those of normal children, "externalizers," and "internalizers." Autistic children had smaller P3 waves compared to normal controls. No intergroup differences were found in…

This study examined the effects of two indirect corrective feedback procedures (picture and video referencing involving instructor prompting) on the assembly skills of five secondary students with moderate mental retardation. Picture and video referencing conditions were more effective than assembly photographs, sequenced pictures, sequenced…

A visual orienting task was given to 11 high functioning male adolescents and adults with autism. Findings suggested that autistic people have difficulty processing briefly presented cue information and problems disengaging and shifting attention within the visual modality. Results support previous ideas that attentional dysfunction may underlie…

Reports on a study of inexperienced and experienced music teachers to determine the dominant perceptual dimensions used to classify classical musical excerpts. Finds that listeners generate an internal hierarchy that reflects their individual background and knowledge. Concludes that instructional methods are as important as the music selected for…

This study found that children with early onset of deafness who received single-channel or multichannel cochlear implants before age 10 demonstrated higher speech intelligibility than children receiving their device after age 10. There was no obvious difference in speech intelligibility scores as a function of type of device (implant or tactile…

Eye movements of 12-week-old infants were recorded in a visual encoding experiment. Results showed that infants who encoded more slowly scanned less extensively over the stimulus and engaged in prolonged fixation. An experiment with two-week olds showed significant age differences in the manner of visual scanning. (BC)

Children and adults performed a divided attention task and two selective attention tasks with shapes that were either spatially integrated or separated. Results indicate that integrated stimuli are initially perceived as wholes, and separated stimuli as features, at all ages. (BC)

Both normal children and dyslexics had difficulty with consonants in word-initial clusters in a phoneme recognition task and a phoneme deletion task. Both groups had trouble producing spellings of syllables with initial clusters. Although dyslexics' phonological awareness and spelling skills were poorer than those of younger, normal children, the…

Two experiments to replicate P. E. Touchette's findings on the delayed prompt effect, with 34 subjects having mental retardation, found more variable results, with all five of the possible outcomes occurring with some subjects. The paper concludes that successful use of the delayed prompt technique depends on such factors as difficulty of target…

Four experiments examined the effect of pictures on the recall of expository prose by 171 first graders and 97 third graders. Results consistently demonstrate that representational pictures can facilitate recall of illustrated and unillustrated prose information by children as young as those in the first grade. (SLD)