An exploration of the role of executive functions in preschoolers' phonological development.
This study explored whether executive functions contribute to the achievement of adult-like speech production. Children who are 4 to 5 years old - 42 with high-average speech production skills, 11 with low-average and nine with speech sound disorder (SSD) - participated in a battery of executive function and speech production tasks. Performance accuracy was compared across groups and also correlated with speech sound accuracy from a single-word naming task. Children with SSD demonstrated poorer performance than other groups on forward digit span, whereas children with low-average speech skills underperformed their peers on...
Source: Clinical Linguistics and Phonetics - June 17, 2016 Category: Speech Therapy Authors: Torrington Eaton C, Ratner NB Tags: Clin Linguist Phon Source Type: research

The production of direct object clitics in pre-school- and primary school-aged children with specific language impairments.
Abstract Third-person direct object (DO) clitic pronoun production is examined through an elicited production method in pre-school- and primary school-aged groups of Italian children with specific language impairment (SLI) to establish whether there is an improvement from age 5 years to age 7 years and whether there are qualitative differences in the two groups' responses. It was found that 5- and 7-year-old Italian children with SLI produce fewer third-person DO clitics than same-age peers. The kind of responses they provide changes: at 5 years, children with SLI tend to omit clitics, while at 7 years, they use a...
Source: Clinical Linguistics and Phonetics - June 10, 2016 Category: Speech Therapy Authors: Guasti MT, Palma S, Genovese E, Stagi P, Saladini G, Arosio F Tags: Clin Linguist Phon Source Type: research

Finding the experts in the crowd: Validity and reliability of crowdsourced measures of children's gradient speech contrasts.
This study aims to measure the validity and reliability of crowdsourced continuous ratings of child speech, obtained through Visual Analog Scaling, and to identify ways to improve these measurements. We first assess overall validity and interrater reliability for measurements obtained from a large set of raters. Second, we investigate two rater-level measures of quality, individual validity and intrarater reliability, and examine the relationship between them. Third, we show that these estimates may be used to establish guidelines for the inclusion of raters, thus impacting the quality of results obtained when smaller samp...
Source: Clinical Linguistics and Phonetics - June 7, 2016 Category: Speech Therapy Authors: Harel D, Hitchcock ER, Szeredi D, Ortiz J, McAllister Byun T Tags: Clin Linguist Phon Source Type: research

Electropalatographic (EPG) evidence of covert contrasts in disordered speech.
Abstract The phenomenon of covert contrasts has intrigued researchers and clinicians since it was first identified using instrumental data nearly 50 years ago. The term covert contrast refers to phonological contrasts that listeners do not readily identify and which therefore pass unrecorded in transcription-based studies. Covert contrasts are viewed as significant from theoretical and clinical perspectives. Although influential, there are relatively few instrumental studies of covert contrasts. The studies that do exist are limited to revealing contrasts that manifest in specific phonetic parameters or phonologic...
Source: Clinical Linguistics and Phonetics - June 6, 2016 Category: Speech Therapy Authors: Gibbon FE, Lee A Tags: Clin Linguist Phon Source Type: research

Grammaticality and complexity of sentences in monolingual Spanish-speaking children with Specific Language Impairment.
This study examined grammaticality and complexity of sentences in monolingual Spanish-speaking children with specific language impairment (SLI). A group of SLI children (n = 13), mean age 6, was compared to a control group (CCG) matched by age (n = 11), and a younger control group (LCG) with similar linguistic development (n = 13). Grammaticality and complexity of sentences were analysed including identification and counting of: a) simple and complex sentences, b) grammatical and ungrammatical sentences, and c) types of grammatical errors. SLI children were found to be more ungrammatical than CCG in both simple and complex...
Source: Clinical Linguistics and Phonetics - April 29, 2016 Category: Speech Therapy Authors: Coloma CJ, Araya C, Quezada C, Pavez MM, Maggiolo M Tags: Clin Linguist Phon Source Type: research

Added syllable complexity in a child's developmental speech and clinical implications.
Abstract Added syllable complexity, whereby a non-targeted consonant is added next to a targeted consonant in the syllable, has received relatively little attention in studies of children with speech sound disorders (SSD) and typically developing children. Despite the scarcity and subtlety of the pattern, evidence in child and adult data indicates universality. The present article examines the pattern in a bilingual child's longitudinal speech in English from age 2;7 to 4;0, focusing on word-initial consonant addition. The purpose is to identify phonological and psycholinguistic processes associated with the patte...
Source: Clinical Linguistics and Phonetics - April 25, 2016 Category: Speech Therapy Authors: Babatsouli E Tags: Clin Linguist Phon Source Type: research

Phonological assessment and analysis tools for Tagalog: Preliminary development.
Abstract Information and assessment tools concerning Tagalog phonological development are minimally available. The current study thus sets out to develop elicitation and analysis tools for Tagalog. A picture elicitation task was designed with a warm-up, screener and two extension lists, one with more complex and one with simpler words. A nonlinear phonological analysis form was adapted from English (Bernhardt & Stemberger, 2000) to capture key characteristics of Tagalog. The tools were piloted on a primarily Tagalog-speaking 4-year-old boy living in a Canadian-English-speaking environment. The data provided in...
Source: Clinical Linguistics and Phonetics - April 20, 2016 Category: Speech Therapy Authors: Chen RK, Bernhardt BM, Stemberger JP Tags: Clin Linguist Phon Source Type: research

Communication restriction in adults who stutter: Part II.
This article presents a follow-up study to Lee, van Dulm, Robb, and Ormond (2015). The aim was to explore communication restriction in adults with stuttering (AWS) using typical language measures and systemic functional linguistics (SFL) analyses. The article compared the pre- and post-treatment performance of AWS in language productivity and complexity, transitivity, modality, appraisal, and theme. Ten-minute conversational samples were obtained from 20 AWS before and after participation in intensive stuttering treatment. Transcripts were analysed for quantity and complexity of verbal output, and frequency of transitivity...
Source: Clinical Linguistics and Phonetics - April 6, 2016 Category: Speech Therapy Authors: Lee A, Robb M, van Dulm O, Ormond T Tags: Clin Linguist Phon Source Type: research

Auditory and visual information in speech perception: A developmental perspective.
This study investigates the development of audiovisual speech perception from age 4 to 80, analysing the contribution of modality, context and special features of specific language being tested. Data of 77 participants in five age groups is presented in the study. Speech stimuli were introduced via auditory, visual and audiovisual modalities. Monosyllabic meaningful and nonsense words were included in a signal-to-noise ratio of 0 dB. Speech perception accuracy in audiovisual and auditory modalities by age resulted in an inverse U-shape, with lowest performance at ages 4-5 and 65-80. In the visual modality, a clear differen...
Source: Clinical Linguistics and Phonetics - March 30, 2016 Category: Speech Therapy Authors: Taitelbaum-Swead R, Fostick L Tags: Clin Linguist Phon Source Type: research

A characterization of verb use in Turkish agrammatic narrative speech.
This study investigates the characteristics of narrative-speech production and the use of verbs in Turkish agrammatic speakers (n = 10) compared to non-brain-damaged controls (n = 10). To elicit narrative-speech samples, personal interviews and storytelling tasks were conducted. Turkish has a large and regular verb inflection paradigm where verbs are inflected for evidentiality (i.e. direct versus indirect evidence available to the speaker). Particularly, we explored the general characteristics of the speech samples (e.g. utterance length) and the uses of lexical, finite and non-finite verbs and direct and indirect evident...
Source: Clinical Linguistics and Phonetics - March 30, 2016 Category: Speech Therapy Authors: Arslan S, Bamyacı E, Bastiaanse R Tags: Clin Linguist Phon Source Type: research

Segmental transition of the first syllables of words in Japanese children who stutter: Comparison between word and sentence production.
Abstract Matsumoto-Shimamori, Ito, Fukuda, & Fukuda (2011) proposed the hypothesis that in Japanese, the transition from the core vowels (i.e. syllable nucleus) of the first syllables of words to the following segments affected the occurrence of stuttering. Moreover, in this transition position, an inter-syllabic transition precipitated more stuttering than an intra-syllabic one (Shimamori & Ito, 2007, 2008). However, these studies have only used word production tasks. The purpose of this study was to investigate whether the same results could be obtained in sentence production tasks. Participants were 28 ...
Source: Clinical Linguistics and Phonetics - March 30, 2016 Category: Speech Therapy Authors: Matsumoto S, Ito T Tags: Clin Linguist Phon Source Type: research

Phonetic and phonological perspectives on the acquisition of voice onset time by French-speaking children.
Abstract The goal of the present article is to describe the acquisition of the phonetic details and phonological categories of stop consonants in French. To this end, the stop consonants produced by children aged 2-4 years were transcribed and acoustically analysed. Stop consonants provide an interesting window in phonetic and phonological development since they are among the first phonemes to be acquired in French (MacLeod, Sutton, Thordardottir & Trudeau, 2011), yet the mastery of the phonetic detail of these phonemes can be more drawn out (Allen, 1985). The results of the study indicate that these children ...
Source: Clinical Linguistics and Phonetics - March 25, 2016 Category: Speech Therapy Authors: A N MacLeod A Tags: Clin Linguist Phon Source Type: research

Effects of language experience on the discrimination of the Portuguese palatal lateral by nonnative listeners.
Abstract The purpose of this study was to investigate (1) whether manner or place takes precedence over the other during a phonological category discrimination task and (2) whether this pattern of precedence persists during the early stages of acquisition of the L2. In doing so, we investigated the Portuguese palatal lateral approximant /ʎ/ since it differs from English /l/ only by the place of articulation, and from English /j/ only by the manner of articulation. Our results indicate that monolinguals' perception of the non-native sound is dominated by manner while Portuguese learners show a different pattern of...
Source: Clinical Linguistics and Phonetics - March 25, 2016 Category: Speech Therapy Authors: Santos Oliveira D, M Casenhiser D, Hedrick M, Teixeira A, Bunta F Tags: Clin Linguist Phon Source Type: research

Linguistic analysis of discourse in aphasia: A review of the literature.
Abstract This review examined previous research applications of linguistic discourse analysis to assess the language of adults with aphasia. A comprehensive literature search of seven databases identified 165 studies that applied linguistic measures to samples of discourse collected from people with aphasia. Analysis of methodological applications revealed an increase in published research using linguistic discourse analysis over the past 40 years, particularly to measure the generalisation of therapy outcomes to language in use. Narrative language samples were most frequently subject to analysis though all langua...
Source: Clinical Linguistics and Phonetics - March 22, 2016 Category: Speech Therapy Authors: Bryant L, Ferguson A, Spencer E Tags: Clin Linguist Phon Source Type: research

Volubility of the human infant: Effects of parental interaction (or lack of it).
Abstract Although parental volubility, or amount of talk, has received considerable recent attention, infant volubility has received comparatively little attention despite its potential significance for communicative risk status and later linguistic and cognitive outcomes. Volubility of 16 typically developing infants from 2 to 11 months of age was longitudinally investigated in the present study across three social circumstances: parent talking to infant, parent not talking to infant and parent talking to interviewer while the infant was in the room. Results indicated that volubility was least in the Interview ci...
Source: Clinical Linguistics and Phonetics - March 22, 2016 Category: Speech Therapy Authors: Iyer SN, Denson H, Lazar N, Oller DK Tags: Clin Linguist Phon Source Type: research

Perceptual, durational and tongue displacement measures following articulation therapy for rhotic sound errors.
This study described perceptual, durational and tongue displacement changes over 10 sessions of articulation therapy for /ɹ/ in six children. Four of the participants also received ultrasound biofeedback of their tongue shape. Speech and tongue movement were recorded pre-therapy, after 5 sessions, in the final session and at a one month follow-up. Perceptually, listeners perceived improvement and classified more productions as /ɹ/ in the final and follow-up assessments. The durations of VɹV syllables at the midway point of the therapy were longer. Cumulative tongue displacement increased in the final session. The averag...
Source: Clinical Linguistics and Phonetics - March 16, 2016 Category: Speech Therapy Authors: Bressmann T, Harper S, Zhylich I, Kulkarni GV Tags: Clin Linguist Phon Source Type: research

Promises and pitfalls of machine scoring of the Index of Productive Syntax.
Abstract The AC-IPSyn computerised system for scoring the Index of Productive Syntax (IPSyn) was evaluated. Twenty language samples, ten taken at 30 months and ten of the same children at 42 months, were each scored for the IPSyn by hand and by AC-IPSyn. Point differences and point-to-point reliability were examined at the levels of the total, subscale, and individual structure scores. Points missed and erroneously given at each level were also analysed. The difference in total scores between manual and AC-IPSyn scoring was relatively small; point-to-point agreement was lower than reported elsewhere. Age differenc...
Source: Clinical Linguistics and Phonetics - February 25, 2016 Category: Speech Therapy Authors: Altenberg EP, Roberts JA Tags: Clin Linguist Phon Source Type: research

Anticipatory coarticulation and stability of speech in typically fluent speakers and people who stutter.
Abstract This project replicates and extends previous work on coarticulation in velar-vowel sequences in English. Coarticulatory data for 46 young adult speakers, 23 who stutter and 23 who do not stutter show coarticulatory patterns in young adults who stutter that are no different from typical young adults. Additionally, the stability of velar-vowel production is analysed in token-to-token variability found in multiple repetitions of the same velar-vowel sequence. Across participants, identical patterns of coarticulation were found between people who do and do not stutter, but decreased stability was found in vel...
Source: Clinical Linguistics and Phonetics - February 25, 2016 Category: Speech Therapy Authors: Frisch SA, Maxfield N, Belmont A Tags: Clin Linguist Phon Source Type: research

Acquiring rhoticity across languages: An ultrasound study of differentiating tongue movements.
We describe an exploratory study analyzing rhotic tongue configurations in ultrasound videos from a small sample of native adult speakers of English, Malayalam, French, Persian and Spanish. Our findings confirm that rhotic sounds most subject to late development also involve tongue root movement towards a pharyngeal constriction, but this conclusion must remain tentative without further research. In the meantime, clinical strategies that include attention to primary and secondary constrictions should be explored for remediation of rhotic misarticulations across languages. PMID: 26913954 [PubMed - as supplied by publis...
Source: Clinical Linguistics and Phonetics - February 25, 2016 Category: Speech Therapy Authors: Boyce SE, Hamilton SM, Rivera-Campos A Tags: Clin Linguist Phon Source Type: research

Cognitive grammar and aphasic discourse.
Abstract In cognitive grammar (CG), there is no clear division between language and other cognitive processes; all linguistic form is conceptually meaningful. In this pilot study, a CG approach was applied to investigate whether people with aphasia (PWA) have cognitive linguistic difficulty not predicted from traditional, componential models of aphasia. Narrative samples from 22 PWA (6 fluent, 16 non-fluent) were compared with samples from 10 participants without aphasia. Between-group differences were tested statistically. PWA had significant difficulty with temporal sequencing, suggesting problems that are not u...
Source: Clinical Linguistics and Phonetics - February 22, 2016 Category: Speech Therapy Authors: Manning M, Franklin S Tags: Clin Linguist Phon Source Type: research

Insights from ultrasound: Enhancing our understanding of clinical phonetics.
PMID: 26901098 [PubMed - as supplied by publisher] (Source: Clinical Linguistics and Phonetics)
Source: Clinical Linguistics and Phonetics - February 22, 2016 Category: Speech Therapy Authors: Cleland J, Scobbie J, Zharkova N Tags: Clin Linguist Phon Source Type: research

Multiple phonetically trained-listener comparisons of speech before and after articulatory intervention in two children with repaired submucous cleft palate.
Abstract Cleft Palate (CP) assessments based on phonetic transcription are the "gold standard" therapy outcome measure, despite reliability difficulties. Here we propose a novel perceptual evaluation, applied to ultrasound-visual biofeedback (U-VBF) therapy and therapy using visual articulatory models (VAMs) for two children with repaired submucous CP. Three comparisons were made: post VAM, post U-VBF and overall pre- and post-therapy. Twenty-two phonetically-trained listeners were asked to determine whether pre- or post-therapy recordings sounded "closer to the English target", using their own...
Source: Clinical Linguistics and Phonetics - February 22, 2016 Category: Speech Therapy Authors: Roxburgh Z, Cleland J, Scobbie JM Tags: Clin Linguist Phon Source Type: research

Tongue displacement and durational characteristics of normal and disordered Brazilian Portuguese liquids.
Abstract The goal of the present study was to characterize normal and disordered Brazilian Portuguese liquids. The research hypotheses were that disordered liquid sounds would be characterized by (1) longer syllable and segment durations, (2) larger and more undifferentiated displacement of the tongue and (3) that the speech errors would show sub-phonemic differences depending on the target sound. The participants of this study were 11 children with phonological disorders and 9 control participants matched for age and educational background. The children's tongue movement in the sagittal plane was recorded with ul...
Source: Clinical Linguistics and Phonetics - February 6, 2016 Category: Speech Therapy Authors: Berti L, Boer G, Bressmann T Tags: Clin Linguist Phon Source Type: research

Dialectal and gender differences in nasalance for a Mandarin population.
Abstract The purpose of this study was to determine whether there are dialectal and gender related differences in nasalance of main Mandarin vowels and three sentences in 400 Chinese normal adults. The mean nasalance score difference for dialect and gender was significant (p Beijing> Shanghai> Guangzhou for the nasal sentence, oro-nasal sentence, /a/, /i/ and /u/. In addition, the average nasalance scores of females were higher than those of males for all speech materials in all dialects. The clinical significance of this study can be helpful in making nasalance clinical decisions for Chinese people with cle...
Source: Clinical Linguistics and Phonetics - February 6, 2016 Category: Speech Therapy Authors: Kim HK, Yu XM, Cao YJ, Liu XM, Huang ZM Tags: Clin Linguist Phon Source Type: research

The role of allophony and frequency in the acquisition of the Hebrew rhotic.
This article investigates the role of allophonic variation in phoneme acquisition and the clinical implications of this role. Specifically, we investigate the Hebrew rhotic /ʁ/. We analyse its production by Hebrew-acquiring children in various corpora, comparing the deletion, substitution and production in word-initial onset, intervocalic and word-final coda positions. The results are compared to the frequency of rhotics in a child-directed speech (CDS) corpus and in a Hebrew lexicon analysis. The study shows rhotics are acquired first in word-final codas, then in intervocalic position and finally as word-initial onsets. ...
Source: Clinical Linguistics and Phonetics - February 1, 2016 Category: Speech Therapy Authors: Cohen EG, Ben-David A Tags: Clin Linguist Phon Source Type: research

Using ultrasound visual feedback to remediate velar fronting in preschool children: A pilot study.
This study suggests that ultrasound visual feedback may be an option for remediating velar fronting in some preschoolers. Further study is required. PMID: 26810299 [PubMed - as supplied by publisher] (Source: Clinical Linguistics and Phonetics)
Source: Clinical Linguistics and Phonetics - January 25, 2016 Category: Speech Therapy Authors: Heng Q, McCabe P, Clarke J, Preston JL Tags: Clin Linguist Phon Source Type: research

How early L2 children perform on Italian clinical markers of SLI: A study of clitic production and nonword repetition.
Abstract Early second language (EL2) learners generally perform more poorly than monolinguals in specific language domains, presenting similarities with children affected by specific language impairment (SLI). As a consequence, it can be difficult to correctly diagnose this disorder in EL2 children. The current study investigated the performance of 120 EL2 and 40 age-matched monolingual children in object clitic production and nonword repetition, which are two sensitive clinical markers of SLI in Italian. Results show that EL2 children underperform in comparison to monolinguals in the clitic task. However, in cont...
Source: Clinical Linguistics and Phonetics - January 25, 2016 Category: Speech Therapy Authors: Vender M, Garraffa M, Sorace A, Guasti MT Tags: Clin Linguist Phon Source Type: research

A comparison of proficiency levels in 4-year-old monolingual and trilingual speakers of Afrikaans, isiXhosa and South African English across SES boundaries, using LITMUS-CLT.
This study investigated how trilinguals fare on the cross-linguistic lexical tasks (CLT)-Afrikaans, -isiXhosa and -South African English (SAE) (cf. Haman et al., 2015) compared to monolingual controls, and whether the CLT-Afrikaans renders comparable results across socioeconomic status (SES) backgrounds. The LITMUS-CLTs were administered to 41 low SES 4-year-olds (11 trilinguals; 10 monolingual speakers of Afrikaans, isiXhosa and SAE) and the LITMUS-CLT-Afrikaans to 11 mid-SES 4-year-old monolinguals. Results (a) indicate that trilinguals' proficiency in their exposure-dominant language did not differ significantly from mo...
Source: Clinical Linguistics and Phonetics - January 20, 2016 Category: Speech Therapy Authors: Perold Potgieter A, Southwood F Tags: Clin Linguist Phon Source Type: research

Robust contour tracking in ultrasound tongue image sequences.
Abstract A new contour-tracking algorithm is presented for ultrasound tongue image sequences, which can follow the motion of tongue contours over long durations with good robustness. To cope with missing segments caused by noise, or by the tongue midsagittal surface being parallel to the direction of ultrasound wave propagation, active contours with a contour-similarity constraint are introduced, which can be used to provide 'prior' shape information. Also, in order to address accumulation of tracking errors over long sequences, we present an automatic re-initialization technique, based on the complex wavelet imag...
Source: Clinical Linguistics and Phonetics - January 20, 2016 Category: Speech Therapy Authors: Xu K, Yang Y, Stone M, Jaumard-Hakoun A, Leboullenger C, Dreyfus G, Roussel P, Denby B Tags: Clin Linguist Phon Source Type: research

Entraining with another person's speech rhythm: Evidence from healthy speakers and individuals with Parkinson's disease.
This study examines entrainment of speech timing and rhythm with a model speaker in healthy persons and individuals with Parkinson's. We asked whether participants coordinate their speech initiation and rhythm with the model speaker, and whether the regularity of metrical structure of sentences influences this behaviour. Ten native German speakers with hypokinetic dysarthria following Parkinson's and 10 healthy controls heard a sentence ('prime') and subsequently read aloud another sentence ('target'). Speech material comprised 32 metrically regular and irregular sentences, respectively. Turn-taking delays and alignment of...
Source: Clinical Linguistics and Phonetics - January 20, 2016 Category: Speech Therapy Authors: Späth M, Aichert I, Ceballos-Baumann AO, Wagner-Sonntag E, Miller N, Ziegler W Tags: Clin Linguist Phon Source Type: research

F0, F0 range and duration of utterances - Longitudinal single-subject studies of prosody in two Swedish children with ASC.
Abstract We investigated prosody in two Swedish boys with autism spectrum condition (ASC) and subjected them individually to a year-long segmental intervention which was analysed using a single-subject experimental design. Acoustic measures were taken for F0 levels, F0 range and duration. The data were evaluated for syllable structure, phrase length and accent 2. Results showed a decrease in augmented F0 levels and an increase in the proportion of utterances within intermediate F0 ranges. The boys developed prosodic patterns more similar to that of typically developing children. In addition, the use of the importa...
Source: Clinical Linguistics and Phonetics - December 8, 2015 Category: Speech Therapy Authors: Nordgren PM Tags: Clin Linguist Phon Source Type: research

Editorial Board EOV.
Authors: PMID: 26596329 [PubMed - in process] (Source: Clinical Linguistics and Phonetics)
Source: Clinical Linguistics and Phonetics - November 28, 2015 Category: Speech Therapy Tags: Clin Linguist Phon Source Type: research

The effect of speaking context on spectral- and cepstral-based acoustic features of normal voice.
Abstract The effect of speaking context on four cepstral- and spectral-based acoustic measures was investigated in 20 participants with normal voice. Speakers produced three different continuous speaking tasks that varied in duration and phonemic content. Cepstral and spectral measures that can be validly derived from continuous speech were computed across the three speaking contexts. Cepstral peak prominence (CPP), low/high spectral ratio, and the standard deviation (SD) of the low/high spectral ratio did not significantly differ across speaking contexts, and correlations for the first two measures were strong am...
Source: Clinical Linguistics and Phonetics - November 23, 2015 Category: Speech Therapy Authors: Lowell SY, Hylkema JA Tags: Clin Linguist Phon Source Type: research

How fluent is the fluent speech of people who stutter? A new approach to measuring kinematics with ultrasound.
We present a new approach to the investigation of dynamic ultrasound tongue imaging (UTI) data, applied here to analyse the subtle aspects of the fluency of people who stutter (PWS). Fluent productions of CV syllables (C = /k/; V = /ɑ, i, ə/) from three PWS and three control speakers (PNS) were analysed for duration and peak velocity relative to articulatory movement towards (onset) and away from (offset) the consonantal closure. The objective was to apply a replicable methodology for kinematic investigation to speech of PWS in order to test Wingate's Fault-Line hypothesis. As was hypothesised, results show comparable on...
Source: Clinical Linguistics and Phonetics - November 23, 2015 Category: Speech Therapy Authors: Heyde CJ, Scobbie JM, Lickley R, Drake EK Tags: Clin Linguist Phon Source Type: research

Early phonetic development in typically developing children: A longitudinal investigation from Cypriot-Greek child data.
Abstract The current longitudinal study examined the acquisition of consonantal singleton segments in Cypriot-Greek. The study's aims were: (a) to determine the acquisition of segments for manner and place of articulation as a function of age and word position, (b) to provide preliminary normative data, and (c) to further support the cross-linguistic data pool regarding developmental phonology patterns. Participants were 14 Cypriot-Greek speaking typically developing toddlers, examined at ages 24, 28, 32 and 36 months. Spontaneously produced and elicited glossable utterances were used in constructing each child's ...
Source: Clinical Linguistics and Phonetics - November 23, 2015 Category: Speech Therapy Authors: Petinou K, Theodorou E Tags: Clin Linguist Phon Source Type: research

Methods for quantifying tongue shape and complexity using ultrasound imaging.
Abstract Quantification of tongue shape is potentially useful for indexing articulatory strategies arising from intervention, therapy and development. Tongue shape complexity is a parameter that can be used to reflect regional functional independence of the tongue musculature. This paper considers three different shape quantification methods - based on Procrustes analysis, curvature inflections and Fourier coefficients - and uses a linear discriminant analysis to test how well each method is able to classify tongue shapes from different phonemes. Test data are taken from six native speakers of American English pro...
Source: Clinical Linguistics and Phonetics - November 20, 2015 Category: Speech Therapy Authors: Dawson KM, Tiede MK, Whalen DH Tags: Clin Linguist Phon Source Type: research

Processing complex pseudo-words in mild cognitive impairment: The interaction of preserved morphological rule knowledge with compromised cognitive ability.
;ek Z Abstract Mild cognitive impairment (MCI) affects the cognitive performance of elderly adults. However, the level of severity is not high enough to be diagnosed with dementia. Previous research reports subtle language impairments in individuals with MCI specifically in domains related to lexical meaning. The present study used both off-line (grammaticality judgment) and on-line (lexical decision) tasks to examine aspects of lexical processing and how they are affected by MCI. 21 healthy older adults and 23 individuals with MCI saw complex pseudo-words that violated various principles of word formation in Slov...
Source: Clinical Linguistics and Phonetics - November 20, 2015 Category: Speech Therapy Authors: Manouilidou C, Dolenc B, Marvin T, Pirtošek Z Tags: Clin Linguist Phon Source Type: research

Longitudinal observations of typical English voicing acquisition in a 2-year-old child: Stability of the contrast and considerations for clinical assessment.
Abstract Early assessment of phonetic and phonological development requires knowledge of typical versus atypical speech patterns, as well as the range of individual developmental trajectories. The nature of data reporting in previous literature on typical voicing acquisition left aspects of the developmental process unclear and limited clinical applicability. This work extends a previous four-month group study to present data for one child over 12 months. Words containing initial /b p d t/ were elicited from a monolingual English-speaking 2-year-old child biweekly for 25 sessions. Voice onset time (VOT) was...
Source: Clinical Linguistics and Phonetics - October 29, 2015 Category: Speech Therapy Authors: Hitchcock ER, Koenig LL Tags: Clin Linguist Phon Source Type: research

Relationship between acoustic measures and speech naturalness ratings in Parkinson's disease: A within-speaker approach.
This study investigated the acoustic basis of across-utterance, within-speaker variation in speech naturalness for four speakers with dysarthria secondary to Parkinson's disease (PD). Speakers read sentences and produced spontaneous speech. Acoustic measures of fundamental frequency, phrase-final syllable lengthening, intensity and speech rate were obtained. A group of listeners judged speech naturalness using a nine-point Likert scale. Relationships between judgements of speech naturalness and acoustic measures were determined for individual speakers with PD. Relationships among acoustic measures also were quantified. Des...
Source: Clinical Linguistics and Phonetics - September 24, 2015 Category: Speech Therapy Authors: Klopfenstein M Tags: Clin Linguist Phon Source Type: research

Effects of blindness on production-perception relationships: Compensation strategies for a lip-tube perturbation of the French [u].
che M Abstract The impact of congenital visual deprivation on speech production in adults was examined in an ultrasound study of compensation strategies for lip-tube perturbation. Acoustic and articulatory analyses of the rounded vowel /u/ produced by 12 congenitally blind adult French speakers and 11 sighted adult French speakers were conducted under two conditions: normal and perturbed (with a 25-mm diameter tube inserted between the lips). Vowels were produced with auditory feedback and without auditory feedback (masked noise) to evaluate the extent to which both groups relied on this type of feedback to contro...
Source: Clinical Linguistics and Phonetics - September 24, 2015 Category: Speech Therapy Authors: Ménard L, Turgeon C, Trudeau-Fisette P, Bellavance-Courtemanche M Tags: Clin Linguist Phon Source Type: research

Articulation and acoustics of Kannada affricates: A case of geminate /ʧ/.
This study presents the first systematic articulatory and acoustic investigation of voiceless geminate affricate /ʧ/ in Kannada (a Dravidian language), compared to the palatal glide and the voiceless dental stop. Ultrasound data from 10 normal speakers from Mysore, India revealed that /ʧ/ is produced with the tongue shape intermediate between the palatal glide and the dental stop, and with the laminal constriction at the alveolar ridge. The observed articulatory differences are reflected in acoustic formant patterns of vowel transitions and stop/affricate bursts. Altogether, the results show that the Kannada consonant in...
Source: Clinical Linguistics and Phonetics - September 24, 2015 Category: Speech Therapy Authors: Kochetov A, Sreedevi N Tags: Clin Linguist Phon Source Type: research

Parental comparison of the prosodic and paralinguistic ability of children with cochlear implants and their normal hearing siblings.
berg ES Abstract The everyday communication of children is commonly observed by their parents. This paper examines the responses of parents (n = 18) who had both a Cochlear Implant (CI) and a Normal Hearing (NH) child. Through an online questionnaire, parents rated the ability of their children on a gamut of speech communication competencies encountered in everyday settings. Comparative parental ratings of the CI children were significantly poorer than those of their NH siblings in speaker recognition, happy and sad emotion, and question versus statement identification. Parents also reported that the...
Source: Clinical Linguistics and Phonetics - September 4, 2015 Category: Speech Therapy Authors: Morris DJ, Christiansen L, Uglebjerg C, Brännström KJ, Falkenberg ES Tags: Clin Linguist Phon Source Type: research

Covert contrast in velar fronting: An acoustic and ultrasound study.
This study used an ultrasound measure (Dorsum Excursion Index) and acoustic measures (VOT and spectral moments of the burst) to investigate overt and covert contrast between velar and alveolar stops in child speech. Participants were two children who produced a perceptually overt velar-alveolar contrast and two children who neutralised the contrast via velar fronting. Both acoustic and ultrasound measures revealed significant differences between perceptually distinct velar and alveolar targets. One child with velar fronting demonstrated covert contrast in one acoustic and one ultrasound measure; the other showed no evidenc...
Source: Clinical Linguistics and Phonetics - September 1, 2015 Category: Speech Therapy Authors: Mcallister Byun T, Buchwald A, Mizoguchi A Tags: Clin Linguist Phon Source Type: research

Acquisition of velars: A whole-word approach.
This study focuses on the acquisition of velars in a child, Max, aged 1;09-4;08, with protracted phonological development, possibly as a result of his diverse input conditions: he is an internationally adopted child who produces his first words shortly after exposure to English at 1;09. Max's acquisition of velars is characterised by U-shaped development as well as by a positional velar-fronting process, in which velars are realised consistently in prosodically-weak but inconsistently in prosodically-strong positions. In prosodically-strong positions, they are conditioned by vowel quality, voicing, the place-of-articulatio...
Source: Clinical Linguistics and Phonetics - August 31, 2015 Category: Speech Therapy Authors: Kehoe M Tags: Clin Linguist Phon Source Type: research

Factors involved in the identification of stuttering severity in a foreign language.
sel J Abstract Speech-language pathologists nowadays are more and more confronted with clients who speak a language different from their own mother tongue. The assessment of persons who speak a foreign language poses particular challenges. The present study investigated the possible role and interplay of factors involved in the identification of stuttering severity in a foreign language. Nineteen speech-language pathologists from five different countries (i.e. Iceland, Sweden, Norway, Finland, and Belgium) rated stuttering severity of speech samples featuring persons who stutter speaking Icelandic, Swedish, Norweg...
Source: Clinical Linguistics and Phonetics - August 26, 2015 Category: Speech Therapy Authors: Cosyns M, Einarsdóttir JT, Van Borsel J Tags: Clin Linguist Phon Source Type: research

List intonation in pre-schoolers with normal and disordered language development.
This study focused on the richly diversified suprasegmental patterns of sentences in which the speaker produces a series of items in a list. To address the hypothesis, list intonation in the speech of 4-year-olds with and without LI was acoustically analysed. Lists produced by children with LI were comparable to those produced by children with normal language development (NL). The results do not support the claim that LI stems from a poor understanding of grammatical principles. Rather, LI reflects an underlying impairment of segmental information processing. The discussion focuses on two characteristics of pitch contours ...
Source: Clinical Linguistics and Phonetics - August 26, 2015 Category: Speech Therapy Authors: Snow D Tags: Clin Linguist Phon Source Type: research

Predictors of token-to-token inconsistency in preschool children with typical speech-language development.
Abstract The purpose of this study was to examine potential concurrent predictors and replicate rates of token-to-token inconsistency (inconsistency in repeated productions of the same word) in 43 children with typical speech-language development, ages 2;6 to 4;2. A standard linear regression was used to determine which variables, if any, among age, expressive and receptive vocabulary, and speech sound production abilities predicted token-to-token inconsistency. Inconsistency rates in children from one research site, reported elsewhere, were compared to rates in children from a second research site. The results re...
Source: Clinical Linguistics and Phonetics - August 26, 2015 Category: Speech Therapy Authors: Macrae T, Sosa AV Tags: Clin Linguist Phon Source Type: research

Rate of multilingual phonological acquisition: Evidence from a cross-sectional study of English-Mandarin-Malay.
Abstract Early child multilingual acquisition is under-explored. Using a cross-sectional study approach, the present research investigates the rate of multilingual phonological acquisition of English-Mandarin-Malay by 64 ethnic Chinese children aged 2;06-4;05 in Malaysia - a multiracial-multilingual country of Asia. The aims of the study are to provide clinical norms for speech development in the multilingual children and to compare multilingual acquisition with monolingual and bilingual acquisition. An innovative multilingual phonological test which adopts well-defined scoring criteria drawing upon local accents ...
Source: Clinical Linguistics and Phonetics - August 3, 2015 Category: Speech Therapy Authors: Lim HW, Wells B, Howard S Tags: Clin Linguist Phon Source Type: research

A case description of speech disturbance and treatment following corrective surgery for stress velopharyngeal incompetence.
Abstract The purpose of this study was to determine the effectiveness of a motor learning guided (MLG) approach to speech treatment in a unique case of speech disturbance following surgery for stress velopharyngeal incompetence (SVPI). The patient was a 20-year-old female college student. Treatment took place over 6 sessions and focused on eliciting productions through a hierarchy of clinician support, with an emphasis on self-evaluation and -correction. Acoustic measurements and ratings from the treating clinician and unfamiliar listeners revealed a speech disturbance following surgery that was corrected followin...
Source: Clinical Linguistics and Phonetics - August 3, 2015 Category: Speech Therapy Authors: Macrae T, Stierwalt JA, Behel KA Tags: Clin Linguist Phon Source Type: research

Limited acquisition and generalisation of rhotics with ultrasound visual feedback in childhood apraxia.
This study evaluated children's performance during acquisition and generalisation of American English rhotics using ultrasound feedback. Three children aged 10-13 with persisting speech sound errors associated with childhood apraxia of speech (CAS) were treated for 14 one-hour sessions. Two of the participants increased the accuracy of their rhotic production during practise trials within treatment sessions, but none demonstrated generalisation to untreated words. Lack of generalisation may be due to a failure to acquire the target with sufficient accuracy during treatment, or to co-existing linguistic weaknesses that are ...
Source: Clinical Linguistics and Phonetics - August 3, 2015 Category: Speech Therapy Authors: Preston JL, Maas E, Whittle J, Leece MC, Mccabe P Tags: Clin Linguist Phon Source Type: research