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.…

Argues that confusion in understanding the process of listening can be alleviated by adopting an information processing approach to listening. Presents a model and discusses listening strategies. (PD)

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)

Used a semantic and morpho-syntactic priming paradigm to examine at which processing stage the advantage of blind adults may arise. Concludes that the faster speech comprehension skills of blind adults may originate from a more efficient perceptual analysis rather than from a more extended use of semantic or morpho-syntactic context information.…

Investigated the relationship between auditory temporal processing of nonspeech sounds and phonological awareness ability in 8- to 12-year-olds with a reading disability, placed in groups based on performance on Tallal's tone-order judgment task. Found that a tone-order deficit did not relate to performance on order processing of speech sounds, to…

A history of hearing and a review of the physics of sound is followed by an overview of how the ear works. The outer hair cell is the focus of particular attention because of its central role in the conversion of sound energy into neural energy used by the brain. Contains a list of recommended resources. (CR)

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…

Down syndrome is the most prevalent cause of intellectual impairment associated with a genetic anomaly, in this case, trisomy of chromosome 21. It affects both physical and cognitive development and produces a characteristic phenotype, although affected individuals vary considerably with respect to severity of specific impairments. Studies…

Three experiments demonstrated (1) habituation and long-term retention of habituation to a tone stimulus in third-grade children, (2) specificity of habituation to an auditory stimulus in first- but not fifth-grade children, and (3) specificity of habituation in fifth-grade children in response suppression when a cross-modality stimulus change was…

This study examined the effects of the cochlear hearing loss of 12 adults on two measures of sequential processing that rely on spectro-temporal information: a gap-detection discrimination task and a melody recognition task. It was concluded that cochlear hearing loss deleteriously affects the processes underlying perceptual organization of…

Ten listeners with normal hearing and ten older adults with sensorineural hearing impairment were tested on a speech-recognition task requiring across-frequency integration of temporal speech information. Listeners with hearing impairment performed more poorly with synchronous across-frequency information, suggesting a particular difficulty…

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…