Auditory visual information equivalence in 15 mentally retarded and 15 intellectually average 12- to 13-year-olds found retarded subjects were more accurate on intra- than on intersensory tasks, whereas there was no such difference for average subjects. Tasks involving transposition were more difficult than others for the retarded children.…

A series of three experiments was conducted to assess the comprehension of four types of cross-modal (synesthetic) similarities in children and adults. Both perceptual and verbal (metaphoric) modes were tested. (PCB)

Examines, in two experiments, 5-month-old infants' sensitivity to auditory-visual specification of distance and direction of movement. One experiment presented two films with soundtracks in either a match or mismatch condition; the second showed the two films side-by-side with a single soundtrack appropriate to one. Infants demonstrated visual…

The London Procedure, a diagnostic/prescriptive instrument for adult basic education, is found to lack content validity, to make arbitrary interpretations of results, and not to reflect current research in literacy acquisition and learning disabilities. (SK)

Effects on the event-related potential (ERP) waveform of differences in stimuli (task difficulty) and threshold were studied with 35 undergraduates performing a visual inspection time task and 30 performing a pitch discrimination task. In both tasks, ERP differences related to threshold were temporally localized differences in waveform shape. (SLD)

An intermodal preference task, which presents 2 events side-by-side with a single sound track appropriate to 1 event, and measures subjects' visual preferences, was presented to 23 children with autism. Subjects showed the intermodal matching effect demonstrated with normal infants and young children; subjects did not demonstrate primary…

Tested the ability of 3.5-month-old infants to detect audiovisual relations. Results demonstrated infants' visual recovery to changes in temporal synchrony of sight and sound and in composition of objects. Infants did not demonstrate visual recovery to changes in the relationship between pitch and color or shape. (BC)

This study evaluated whether listeners can distinguish human brainstem auditory evoked responses elicited by acoustic clicks from control waveforms obtained with no acoustic stimulus when the waveforms are presented auditorily. Detection performance for stimuli presented visually was slightly, but consistently, superior to that which occurred for…

When presented simultaneously with equally discriminable, but unfamiliar, visual and auditory stimuli, 4-year-olds exhibited auditory dominance, processing only auditory information ( Sloutsky & Napolitano, 2003). The current study examined factors underlying auditory dominance. In 6 experiments, 4-year-olds (N181) were presented with auditory and…

Phoneme identification with audiovisually discrepant stimuli is influenced by information in the visual signal (the McGurk effect). Additionally, lexical status affects identification of auditorily presented phonemes. The present study tested for lexical influences on the McGurk effect. Participants identified phonemes in audiovisually discrepant…

Purpose: In this study, the authors aimed to develop a visual analogue of the widely used Speech Reception Threshold (SRT; R. Plomp & A. M. Mimpen, 1979b) test. The Text Reception Threshold (TRT) test, in which visually presented sentences are masked by a bar pattern, enables the quantification of modality-aspecific variance in speech-in-noise…

Use of the Slingerland Screening Tests to detect auditory, visual, and kinesthetic handicaps among children in the classroom is advocated in reference to implementation of Tennessee Public Law 839 which mandates educational services for handicapped persons 4 to 20 years of age. (JC)

Discussed are normal and abnormal mechanisms of learning observed in the learning disabled child and associated educational implications. (DB)