Children with unintelligible speech differ in severity, underlying deficit, type of surface error patterns and response to treatment. Detailed treatment case studies, evaluating specific intervention protocols for particular diagnostic groups, can identify best practice for children with speech disorder. Three treatment case studies evaluated the…

Jaw movement patterns were examined longitudinally in a 3-year-old male with childhood apraxia of speech (CAS) and compared with a typically developing control group. The child with CAS was followed for 8 months, until he began accurately and consistently producing the bilabial phonemes /p/, /b/, and /m/. A movement tracking system was used to…

In three experiments, we tested the hypothesis that those errors in immediate serial recall (ISR) that are attributable to phonological confusability share a locus with segmental errors in normal speech production. In the first two experiments, speech errors were elicited in the repeated paced reading of six-letter lists. The errors mirrored the…

Describes and classifies French consonants from an articulatory-phonological perspective. (JB)

This comment on an article addresses two issues: (1) Different from what the authors of the article suggest, there are no theories of production claiming the phonological word to be the upper ground of advance planning before the onset of articulation; (2) the picture naming study of word frequency effect on speech onset is inconclusive by lack of…

Responds to a critique on an article and argues against criticisms put forth in the response. Shows that the hypotheses put forth in research about the scope of phonological encoding are well motivated in the context of current theories of speech production. (Author/VWL)

To verify the place of articulation of Korean affricates, this article reconsiders previous phonological accounts of their place of articulation and argues that Korean affricates are neither palato-alveolar nor aveolopalatal, as is usually assumed. (Author/VWL)

In the speech production model proposed by [Levelt, W. J. M., Roelofs, A., Meyer, A. S. (1999). A theory of lexical access in speech production. "Behavioral and Brain Sciences," 22, pp. 1-75.], syllables play a crucial role at the interface of phonological and phonetic encoding. At this interface, abstract phonological syllables are translated…

This paper presents a single-subject case study illustrating the need to closely examine effects of dialect from syllable position on l-colouring, and the effects of domain-initial strengthening in General American English. Most investigators report lighter /l/ tokens in syllable onsets and darker tokens in coda positions in isolated words. The…

Speech errors reveal the speaker's implicit knowledge of phonotactic constraints, both languagewide constraints (e.g., /K/ cannot be a syllable onset when one is speaking English) and experimentally induced constraints (e.g., /k/ cannot be an onset during the experiment). Four experiments investigated the acquisition of novel 2nd-order…

Studies of first and second language acquisition have reported that in the acquisition of long lag (aspirated) stops, the effects of the place of articulation of the stop and the height of the following vowel may be significant. This paper examines these two variables in the acquisition of English long lag stops by Spanish speakers. Results…

Production and perception of word-final "th" was assessed among 40 Black English- and 40 standard English-speaking children from grades one to four. The two dialectal groups were significantly different in production but not in perception of the word-final "th." Sequential developmental stages for the acquisition of word-final "th" are proposed…

The phonological store construct of the working memory model is critically evaluated. Three experiments test the prediction that the effect of irrelevant sound and the effect of phonological similarity each survive the action of articulatory suppression but only when presentation of to-be-remembered lists is auditory, not visual. No evidence was…

In the past years, there have been an increasing number of instrumental investigations as to the nature of speech production errors, prompted by the concern that decades of transcription-based speech error data may be tainted by perceptual biases. While all of these instrumental studies suggest that errors are not, as previously thought,…

The study investigated adaptation to a standard electropalatographic (EPG) practise palate in a group of eight adults (mean age = 24 years). The participants read the phrase "a CVC" over four sampling conditions: prior to inserting the palate, immediately following insertion of the palate, 45 minutes after palate insertion, and 3 hours after…