This study compared 20 children (ages 8-14) with either autism or receptive developmental language disorder (RDLD) to 10 controls in their ability to detect frequent and infrequent randomly presented auditory stimuli. Only the children with autism demonstrated an abnormally small amplitude of the P3b, a component of the event-related brain…

A study involving 55 children with a language impairment and 76 with normal language investigated the heritability of auditory processing impairment in same-sex twins (ages 7 to 13, selected from a sample of 37 pairs). Although correlations between co-twins were high, lack of significant difference between monozygotic and dizygotic twins suggested…

Twenty-three children (ages 10 to 12) with language impairment and 46 typically achieving adults participated in two auditory lexical-decision tasks evaluating effects of phonological opacity on word recognition. Findings indicated that the language-impaired children were less able than controls to identify phonologically opaque…

This study compared the lexical mapping (acoustic-phonetic analysis) stage of auditory word recognition in 21 children (mean age 8 years 9 months) with specific language impairments (SLI) with children matched for either chronological age or vocabulary. The SLI children performed comparably to control groups on all dependent measures related to…

Compared the mismatch-negativity (MMN) component of auditory event-related brain potentials to explore the relationship between phonological short-term memory and auditory-sensory processing in 7- to 9-year olds scoring the highest and lowest on a pseudoword repetition test. Found that high and low repeaters differed in MMN amplitude to speech…

Examined abilities of 3- to 16-year olds and adults to resist interference during the processing of two auditory dimensions of speech--the speaker's gender and spatial location. Found that the degree of interference from irrelevant variability in either dimension did not vary with age. In the presence of conflicting task-irrelevant information,…

Presents an acoustical model and evidence from four experiments that children with visual impairments use the buildup of low-frequency sound along walls to guide locomotion. The model differs from the concept of echolocation by emphasizing sound that is ambient, rather than self-produced, and of low frequency. (Author/CR)

This study evaluated the ability to process auditory temporal-envelope cues in six children with dyslexia and two groups of six each normal control children and adults. Children with dyslexia showed poorer reception of voicing, manner, and place of articulation for unprocessed speech and poorer reception of voicing for "speech-envelope noise."…

Auditory processing disorders (APDs) have received considerable attention over the past few decades. Much of the attention has focused on the controversy surrounding the operational definition of APD, the heterogeneous nature of APD, and an appropriate test battery for APD assessment. Temporal processing deficits are one characteristic of APD and…

This study investigated the accuracy of musical pitch detection in children with autistic spectrum disorders as compared with typically developing children. Seventeen children on the autistic spectrum (M[subscript age]=9.34, SD[subscript age]=1.12) and 13 typically developing, chronological age-matched children (M[subscript age]=9.13, SD[subscript…

Auditory pattern recognition skills in children with reading disorders were investigated using perceptual tests involving discrimination of frequency and duration tonal patterns. A behavioral test battery involving recognition of the pattern of presentation of tone triads was used in which individual components differed in either frequency or…

THE INVESTIGATION STUDIED THE RELATIONSHIPS BETWEEN (1) AUDITORY PERCEPTUAL ABILITIES AND ARTICULATION DEVELOPMENT AND (2) INVESTIGATED QUALITATIVE AND QUANTITATIVE ASPECTS OF THESE ABILITIES AS SHOWN IN MENTALLY RETARDED AND NORMAL CHILDREN. THE STUDY INVOLVED MONTHLY TESTING OF ARTICULATION, PHONETIC DISCRIMINATION, AND PHONETIC SYNTHESIS…

A comparative study of nonverbal MA matched groups of five autistic, five aphasic, five normal and five retarded children (3 to 16 years old) was made on an auditory-visual and a visual-visual paired-associate learning task. (Author)