This research assesses whether the presence of noise elements in a visual display affects the detection of target letters at the perceptual or feature extraction level of information processing and whether (a) input or processing channels operate in an independent or interactive fashion and (b) how the spatial relation between signal and noise…

Investigated with 66 elementary children (all enrolled in articulation therapy) was the assumption that children who are in the process of developing automatization of correct production. (Author/SBH)

Twelve children (4 1/2 to 8 1/2 years old) with normal language development, 12 normal adults, and 12 dysphasic children (6 to 9 years old) were tested for their ability to perceive binary sequences of nonverbal auditory stimuli. (Author/SBH)

Reading reaction time (RT) to visual stimuli was shown to vary according to the nature of simultaneous auditory stimuli. A two-stage model was proposed to explain the results in which parallel processing of simultaneous input occurs prior to a decision-making stage. (Editor)

Eighteen moderately mentally retarded adults, 20 nonretarded elementary age children, and 20 nonretarded adults were exposed to three conditions of an auditory detection task (location, meaning, and a combination of both). Developmentally immature subjects (retarded adults and nonretarded children) demonstrated less efficient attentional capacity.…

Examines whether age-related differences would be observed between young children and adults for discrimination of synthesized, five-format consonant-vowel syllables that differed in voicing onset time of the initial consonants. (HOD)

Infants 5-17 weeks of age were presented with foreign sounds which were contingent upon their nonnutritive sucking. Significant differences were found for experimental versus control (no sound change) subjects. It was found that adults achieved perfect accuracy with English contrasts but readily confused the foreign contrasts. (Author/SB)

Investigates differences in the performance of Spanish-speaking children on alternate forms of the Oral Vocabulary Subtest of the Inter-American Test of General Abilities (Manuel, 1967) in Spanish and English that may be attributed to the factors of practice effect, language level, and chance errors of measurement. (Author)

Research supported by a grant from the National Science Foundation. (DD)

Results of this study indicated that the frequency of an auditory stimulus is a dimension to which infants differentially respond in terms of response rate and acoustic characteristics of their vocalizations. (Authors)

Structural approaches to musical meaning are discussed, and the educator's responsibilities in helping students develop aethetic sensitivity are described. (DB)

Artifically constructed words were presented to kindergarten children, first graders, undergraduate and graduate students. (PR)