This report is one of a regular series on the status and progress of studies on the nature of speech, instrumentation for its investigation, and practical applications. Drawn from the period of January 1 to March 31, 1980, the 14 manuscripts cover the following topics: (1) acoustics in human communication; (2) motor-sensory feedback formulations;…

This paper reports on a study in which twenty young adults were tested for their ability to accurately reproduce the articulatory and prosodic features of three non-Indo-European languages in which they had received instruction. The first of two basic goals of this research was to test, at the purely phonetic level, the "critical period for…

Production of 19 word-initial two-segment consonant clusters was examined in 12 children (ages 6-16) with cochlear implants, including 6 using oral communication and 6 using total communication. Results showed that 48% of the clusters were correctly produced (75% correct for oral communication users and 21% correct for total communication users).…

Research reports on the nature of speech, instrumentation for the investigation of speech, and practical applications of speech research are presented in this status report. The 18 reports deal with a variety of topics, including the following: (1) cyclic production of vowels in sequences of monosyllabic stress feet; (2) differences between…

Research reports on the nature of speech, instrumentation for the investigation of speech, and practical applications of research are included in this status report for the January 1 - March 31, 1979 period. The reports deal with the following topics: an articulatory synthesizer for perceptual research; the perception of an oral-nasal continuum…

A study examined the speech intelligibility of children (ages 1-15) with deafness who use hearing aids. Data revealed a strong significant trend toward higher intelligibility for children with more residual hearing, and a significant trend toward higher intelligibility for users of oral communication than those using total communication. (Contains…

Forty Dutch individuals (ages 2-34) with Rubinstein-Taybi syndrome were tested using an extensive battery of intelligence, social competency, temperament, behavior, articulation, and receptive and expressive language measures. Results indicated that intelligence level was usually low and individuals were remarkably consistent in their social…

This publication reports on research which has investigated phoneme acquisition and carry-over in a programmatic fashion. This research began with investigations of the effect of an extension of stimulus control of new phoneme responses through a systematic operant procedure. After quantifying the effect of such procedures in terms of stimulus…

The idea that vowel nuclei in many northern European languages can be divided into peripheral and non-peripheral categories is discussed. Peripheral vowels are those located at the edge of the vowel envelope, and non-peripheral nuclei are those located on the inside. This assertion has not received as much scrutiny as it should. There are at least…

Prepared as part of a regular series on the status and progress of studies on the nature of speech, instrumentation for its evaluation, and practical applications for speech research, this compilation contains 14 reports. Topics covered in the reports include the following: (1) phonetic coding and order memory in relation to reading proficiency,…

The manual concentrates on features of English and Indochinese which are dissimilar and, therefore, potential problem areas. These areas were identified through: (1) a contrastive analysis of English and Indochinese (Lao, Cambodian, Vietnamese) phonology, morphology, and syntax; (2) an analysis of Indochinese students' errors; and (3) noting the…