Several traditional phonetic theories are explained and discussed. It is asserted that recent advances in knowledge of speech production and speech perception show that these theories are descriptively inadequate and that physiologic principles may instead structure phonetic feature theories. (Author/RM)

The selective tuning of feature detectors sensitive to the acoustic information relevant to the assignment of distinctive phonetic feature values was investigated with a contingent adaptation paradigm. (Author/RM)

A description of an electromyographic investigation carried out on the speech of deaf speakers. The research attempted to answer questions concerning articulation and phonetic patterns in the speech of deaf adults. Results indicated that the deaf speakers extended the duration of speech segments and exhibited difficulty coordinating articulation…

Based on paper presented at National Convention of the American Speech and Hearing Association (44th, Denver, Nov 15-18, 1968). (JJ)

Spontaneous and imitated-sentence responses of six children were examined for their sound patterns in the acquisition of /x/, /f/, and /s/. The data tend to support the position that children may produce forms exemplifying geographical-dialectical constraints, general developmental processes, and variability in development across children.…

In order to investigate the articulatory dynamics of the tongue in the production of Swedish vowels, electromyographic (EMG) and X-ray microbeam studies were performed on a native Swedish subject. The EMG signals were used to obtain average indication of the muscle activity of the tongue as a function of time. (NCR)

Investigates the phenomenon that subjects speaking under exposure to masking noise demonstrate decreases in oral sensory function and temporal reorganization of the articulatory pattern. The study attempts to measure the effects of this phenomenon under varying durations of exposure to auditory masking. (Author/NCR)

Reconsiders the general question of the role of articulatory phonetics in the second language (L2) classroom and reviews the phonetic presentation in 10 recent first-year Spanish texts. Proposes a phonetics program based on the notion of a learners' dialect, then measures the phonetics of the textbooks against a learners' dialect. Argues against…

Five experiments involving 84 subjects investigated the effects of phonologic similarity of speech-production latencies to explore the role of articulatory phonetic features and reprogramming operations during pre-motor stages of production. Results revealed that shared manner was the most influential factor associated with the observed inhibitory…

Many speakers with repaired cleft palate have reduced intelligibility, but there are limitations with current procedures for assessing intelligibility. The aim of this study was to construct a single-word intelligibility test for speakers with cleft palate. The test used a multiple-choice identification format, and was based on phonetic contrasts…

The availability of cochlear implants in younger children has provided the opportunity to evaluate the relative impact of the production system, or the sounds young children can say, and the auditory system, or the sounds children can hear, on early vocal communication. Limited access to the acoustic properties of speech results in differences in…

The dictionary, intended primarily for teachers and students of phonetics, contains almost 2,000 terms used in the field of phonetics. Areas covered include articulatory, acoustic, and perceptual phonetics, classical and generative phonology, distinctive features, the phonology of English, and phonological change and variation. Terminology is…