Ines Carović, Martin J Ball, Daniel Bérubé, Chiara Meluzzi, Nicole Müller, Ioannis Papakyritsis, Tomislav Ivanjko
{"title":"The power of adaptation: Multilingual localisation of extIPA for clinical phonetics and cross-linguistic speech assessment.","authors":"Ines Carović, Martin J Ball, Daniel Bérubé, Chiara Meluzzi, Nicole Müller, Ioannis Papakyritsis, Tomislav Ivanjko","doi":"10.1080/02699206.2026.2718260","DOIUrl":"https://doi.org/10.1080/02699206.2026.2718260","url":null,"abstract":"<p><p>The Extensions to the International Phonetic Alphabet (extIPA) support clinical transcription of atypical and disordered speech, but their chart metalanguage is primarily available in English. This article presents a feasibility study of multilingual extIPA localisation as clinical phonetic infrastructure rather than as an outcome intervention. A version-specified, language-agnostic workflow was developed and implemented across six languages: Croatian, French, German, Greek, Italian, and Welsh. The workflow decomposed extIPA chart metalanguage into 78 conceptual units, yielding 624 target-language string instances, coordinated through a translation management environment and reinserted into fixed-layout chart outputs. Process evidence from language-team review and translator comments identified recurring constraints involving source-version control, chart-cell space, orthography, technical terminology, abbreviations, and retention of English labels. The study demonstrates the feasibility of coordinated, traceable, and maintainable multilingual extIPA localisation while making no claims about effects on transcription accuracy, clinical usability, or training outcomes.</p>","PeriodicalId":49219,"journal":{"name":"Clinical Linguistics & Phonetics","volume":" ","pages":"1-23"},"PeriodicalIF":1.1,"publicationDate":"2026-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148809452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Paola Zanchi, Alessandra Provera, Gaia Silibello, Domenica Mastromattei, Maria Antonella Costantino, Paola Francesca Ajmone, Laura Zampini
{"title":"Longitudinal trends in maternal child-directed speech addressed to children with sex chromosome trisomies.","authors":"Paola Zanchi, Alessandra Provera, Gaia Silibello, Domenica Mastromattei, Maria Antonella Costantino, Paola Francesca Ajmone, Laura Zampini","doi":"10.1080/02699206.2026.2718261","DOIUrl":"https://doi.org/10.1080/02699206.2026.2718261","url":null,"abstract":"<p><p>Children with Sex Chromosome Trisomies (SCTs) face a risk for developmental language vulnerabilities. Understanding how the Child-Directed Speech (CDS) adapts to these developmental trajectories is crucial for early intervention. This longitudinal study mapped the evolution of CDS addressed to 16 children with SCTs from 8 to 24 months of age. Results revealed significant changes. Structurally, the input transitioned in line with typical development, showing significant increases in lexical variety and syntactic complexity. Functionally, mothers transitioned from a more affective/attention-getting speech to a higher proportion of informative utterances. Prosodically, features associated with attention-driven communication decreased by 24 months. These findings suggest that the changes in CDS are driven primarily by the child's emerging communicative competence, rather than being constrained by the genetic diagnosis. The study highlights the responsiveness of CDS and its role as a protective factor that must be supported to facilitate optimal language development in this at-risk population.</p>","PeriodicalId":49219,"journal":{"name":"Clinical Linguistics & Phonetics","volume":" ","pages":"1-15"},"PeriodicalIF":1.1,"publicationDate":"2026-08-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148800511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparing compound verb production in Persian-speaking non-brain-damaged adults, and people with fluent and non-fluent aphasia.","authors":"Shadi Alipour, Fariba Yadegari, Robab Teymouri","doi":"10.1080/02699206.2026.2713461","DOIUrl":"https://doi.org/10.1080/02699206.2026.2713461","url":null,"abstract":"<p><p>Persian verbs are classified into simple and compound (complex) verbs (CVs). Simple verbs contain one word; CVs comprise more than one word, including nominal and verbal components. This study investigates how people with aphasia (PWA) and non-brain-damaged (NBD) adults produce complex verbs, the types of errors they make and what the effect is of lemma representation and the compound status of the verbs. Forty-five participants, including 11 fluent PWA, 9 non-fluent PWA, and 25 NBDs, completed action naming and connected speech tasks. The findings revealed that CV retrieval was impaired in PWA; although they showed knowledge ('lemma') of the compound structure, they failed to retrieve the phonological form ('lexeme'). We therefore assume a two lemma representation for CVs except for idiomatic CVs, and CVs with a heavier verbal component which are represented as one lemma.</p>","PeriodicalId":49219,"journal":{"name":"Clinical Linguistics & Phonetics","volume":" ","pages":"1-17"},"PeriodicalIF":1.1,"publicationDate":"2026-08-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148762507","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Against the clock: How time of day influences speech-motor learning in adolescents and young adults with and without childhood apraxia of speech.","authors":"Anne L van Zelst, F Sayako Earle","doi":"10.1080/02699206.2026.2713447","DOIUrl":"https://doi.org/10.1080/02699206.2026.2713447","url":null,"abstract":"<p><p>The long-term implications of childhood apraxia of speech (CAS) beyond childhood are relatively unknown. This research tracks production performance of a non-native vowel contrast following morning and evening training in adolescents and young adults with and without long-standing CAS. 82 participants aged 12-21 years trained in production of Danish vowels [y] and [ø] in either the morning or evening and completed post-training and 12-hour retention probes. Aligned with previous work, we found that for those with typical speech profiles (TP), offline changes were modulated by time of day of training: whereas evening trainees subtly improved, morning-trained participants declined in accuracy over the 12-hour post-training interval. For those with long-standing CAS, those trained in the morning out-performed evening-trained learners across time. Together, these findings suggest a different trajectory of speech-motor learning and consolidation in adolescents and young adults with a history of CAS.</p>","PeriodicalId":49219,"journal":{"name":"Clinical Linguistics & Phonetics","volume":" ","pages":"1-25"},"PeriodicalIF":1.1,"publicationDate":"2026-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148714326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Guannan Wang, Nurul Hidayah Md Fadzila, Jaehoon Lee, Haitian Jiang, Siaw Chui Chai, Shin Ying Chu, Steven M Barlow
{"title":"Clinical relevance of maximum phonation time in children and adolescents: Task-dependent roles of age, sex, and forced vital capacity.","authors":"Guannan Wang, Nurul Hidayah Md Fadzila, Jaehoon Lee, Haitian Jiang, Siaw Chui Chai, Shin Ying Chu, Steven M Barlow","doi":"10.1080/02699206.2026.2713451","DOIUrl":"https://doi.org/10.1080/02699206.2026.2713451","url":null,"abstract":"<p><p>This study examined whether spirometrically measured forced vital capacity (FVC) is associated with one-breath endurance in typically developing children and adolescents, and whether this association differs by task. A total of 971 participants aged 8-17 years completed sustained /a/ and repeated /ka/ to exhaustion after maximal inspiration. FVC was measured concurrently by spirometry. A unified long-format regression model showed that endurance was longer for sustained /a/ than for repeated /ka/, and that age and FVC significantly predicted performance in both tasks. However, the FVC - endurance association was stronger for sustained /a/ than for repeated /ka/, whereas age effects were larger for repeated /ka/. No adjusted sex difference was observed for sustained /a/, whereas females showed longer repeated /ka/ endurance despite smaller FVC. Age- and sex-stratified values and capacity-adjusted residual flags support task-specific interpretation of one-breath endurance and may improve clinical interpretation of paediatric speech-breathing function. By separating respiratory capacity from task-specific endurance, this approach may help clinicians distinguish predominantly capacity-limited from coordination-limited patterns of reduced speech-breathing endurance.</p>","PeriodicalId":49219,"journal":{"name":"Clinical Linguistics & Phonetics","volume":" ","pages":"1-20"},"PeriodicalIF":1.1,"publicationDate":"2026-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148708265","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Dahlia E Sartika, Philip Newall, Nana Nawangsari, Andrew Kusno
{"title":"Development and field evaluation of an Indonesian speech perception assessment for children with severe to profound hearing loss.","authors":"Dahlia E Sartika, Philip Newall, Nana Nawangsari, Andrew Kusno","doi":"10.1080/02699206.2026.2704601","DOIUrl":"https://doi.org/10.1080/02699206.2026.2704601","url":null,"abstract":"<p><p>We developed an auditory tool capable of distinguishing those who perceive spectral components of speech from those who rely primarily on time-intensity cues. Three-word lists with distinct syllabic patterns were developed and analysed for acoustic properties. Each word was paired with a corresponding picture card. The tool was tested in children aged 5-18 years with severe to profound sensorineural hearing loss, divided into hearing aid (HA; 60 ears) and cochlear implant (CI; 11 ears) users. Fifteen children with normal hearing were also included. Among HA users, 37% demonstrated some capacity to identify words using spectral cues, whereas 53% relied primarily on time-intensity cues. Children with normal hearing and CI users primarily identified words based on spectral cues. One participant who transitioned from HA to CI showed improved use of spectral cues. Thus, this auditory tool can differentiate children who perceive speech through spectral cues versus time-intensity cues.</p>","PeriodicalId":49219,"journal":{"name":"Clinical Linguistics & Phonetics","volume":" ","pages":"1-19"},"PeriodicalIF":1.1,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148664603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Speech intelligibility depends on listener experience: Comparing speech-language pathologists, naïve listeners, and automated recognition.","authors":"Hannah Stewart, Alan F Smith","doi":"10.1080/02699206.2026.2704604","DOIUrl":"https://doi.org/10.1080/02699206.2026.2704604","url":null,"abstract":"<p><p>This study examined whether intelligibility judgements differ among experienced speech-language pathologists (SLPs), naïve listeners, and an automated speech recognition system when presented with identical speech stimuli. A total of 87 participants (48 SLPs, 38 naïve listeners, and one automated system) completed a closed-set word identification task and provided continuous intelligibility ratings for a narrative passage. Speech stimuli consisted of synthesised productions incorporating developmental phonological error patterns. Accuracy scores increased from the automated system (<i>M</i> = 56.00%) to naïve listeners (<i>M</i> = 56.32%, <i>SD</i> = 8.6) to SLPs (<i>M</i> = 61.08%, SD = 7.9). Group differences were statistically significant, <i>χ</i><sup>2</sup> (2) = 6.17, <i>p</i> = 0.046, with post hoc analyses indicating differences between SLPs and naïve listeners. Intelligibility ratings also differed across groups, <i>χ</i><sup>2</sup> (2) = 10.11, <i>p</i> = 0.006, with higher ratings observed for SLPs compared to naïve listeners. Findings suggest that listener experience influences intelligibility judgements, with experienced SLPs demonstrating greater accuracy and higher intelligibility ratings than naïve listeners. Performance of naïve listeners was comparable to that of the automated system, with no statistically significant differences observed between these groups. These results highlight the role of listener experience in interpreting disordered speech and have implications for both clinical assessment and the use of automated recognition systems.</p>","PeriodicalId":49219,"journal":{"name":"Clinical Linguistics & Phonetics","volume":" ","pages":"1-12"},"PeriodicalIF":1.1,"publicationDate":"2026-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148664630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A whole-word computational algorithm for phonological error scoring: Differentiating children with developmental language disorder, hearing impairment, and typical development.","authors":"Simon Sundström, Charalambos Themistocleous","doi":"10.1080/02699206.2026.2704602","DOIUrl":"https://doi.org/10.1080/02699206.2026.2704602","url":null,"abstract":"<p><p>Accurate phonological assessment is critical for the management of phonological disorders, yet current methods rely heavily on time-intensive manual transcription and analysis. We introduce a computational phonological scoring tool for phonological production in two groups that are at a high risk for phonological disorder, namely children with developmental language disorder (DLD) and hearing impairment (HI). We test whether the computational tool supports (a) identification of phonological problems vs. typical development (TD) and (b) differentiation between DLD and HI. Seventy-two Swedish-speaking children (29 DLD, 14 HI, 29 TD) completed a picture naming task. Phoneme-level distances between targets and productions were computed with Normalised Damerau-Levenshtein Distance, yielding a Composite Phonological Score (CPS) and counts of deletions, insertions, substitutions, and transpositions. Machine-learning models evaluated classification performance. DLD and HI groups showed higher CPS (more errors) than TD. CPS did not differ between DLD and HI, but deletions were more frequent in HI than DLD. Feature importance analysis revealed that CPS was the most accurate metric for distinguishing children with impairments (DLD and HI) from TD peers, underscoring its utility as a primary screening marker. Distinguishing DLD vs. HI required the detailed error profile and broader language measures rather than CPS alone. Our computational scoring of whole-word phonological accuracy provides more information than the standard correct or incorrect scores, supporting screening for phonological problems, while group-specific error patterns (e.g. deletions) and additional language measures may aid differentiation between DLD and HI.</p>","PeriodicalId":49219,"journal":{"name":"Clinical Linguistics & Phonetics","volume":" ","pages":"1-16"},"PeriodicalIF":1.1,"publicationDate":"2026-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148594210","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Restoration of speech articulatory control and functional connectivity through visually-guided rehabilitation in chronic non-fluent aphasia: A case report study.","authors":"Célise Haldin, Hélène Lœvenbruck, Sarah Rochas, Emilie Cousin, Aude Noiray, Stéphanie Maurice, Elisabeth Marey, Anaëlle Bain, Isabelle Favre-Wiki, Olivier Detante, Monica Baciu","doi":"10.1080/02699206.2026.2699143","DOIUrl":"https://doi.org/10.1080/02699206.2026.2699143","url":null,"abstract":"<p><p>Computer-based therapy has shown promise in speech rehabilitation for individuals with language disorders. In this study, we investigated behavioural, acoustic and brain network changes in a patient with chronic non-fluent aphasia who underwent an enriched rehabilitation programme, combining the Ultraspeech-player software with conventional speech therapy, followed by a period of conventional therapy alone. The software provided visualisation of articulatory movements recorded from a reference speaker. Comprehensive assessments, conducted before and after each rehabilitation period, included perceptual and acoustic analyses of speech production and brain network measures. Data were compared with normative values from healthy older participants (<i>N</i> = 16). Results showed (i) changes in articulatory configuration after enriched rehabilitation, with partial maintenance after conventional therapy; and (ii) normalisation of right intra-hemispheric functional connectivity and restoration of the integration-segregation balance. This study provides a multimodal characterisation of recovery-related changes, showing how articulatory control and large-scale network organisation may reorganise following rehabilitation.</p>","PeriodicalId":49219,"journal":{"name":"Clinical Linguistics & Phonetics","volume":" ","pages":"1-25"},"PeriodicalIF":1.1,"publicationDate":"2026-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148594176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"An investigation of factors associated with speech intelligibility in patients with amyotrophic lateral sclerosis: Integrating acoustic and lingual motor measures.","authors":"Yohei Tsujisawa, Ikuko Takahashi-Iwata, Ichiro Yabe, Masahiko Mukaino, Isamu Shibamoto","doi":"10.1080/02699206.2026.2704600","DOIUrl":"https://doi.org/10.1080/02699206.2026.2704600","url":null,"abstract":"<p><p>Speech intelligibility in amyotrophic lateral sclerosis (ALS) progressively declines, but contributing clinical factors may vary according to disease presentation and extent of bulbar involvement. This study examined factors associated with intelligibility in three ALS groups: spinal-onset, spinal-onset with bulbar involvement (spinal + bulbar), and bulbar-onset. Speech intelligibility (visual analogue scale), hypernasality, maximum tongue pressure, respiratory function (%VC and FEV<sub>1</sub>/FVC), and second formant (F2) transition measures (transition duration and excursion) were evaluated. Exploratory two- and three-dimensional visualisations were used to examine interrelationships among variables, and regression analyses were conducted in groups with sufficient sample size. In spinal-onset ALS, only hypernasality was associated with intelligibility. In bulbar-onset ALS, both tongue pressure and hypernasality were significantly associated with intelligibility, while preserved F2 excursion showed an additional trend towards better intelligibility. In the spinal + bulbar group, descriptive findings suggested that reduced tongue pressure and increased hypernasality were associated with lower intelligibility. These findings suggest that speech intelligibility in ALS is influenced by different combinations of bulbar-related impairments depending on clinical presentation and extent of bulbar involvement. In particular, tongue strength, velopharyngeal function, and residual tongue mobility may be relevant to intelligibility outcomes with bulbar involvement. Combined evaluation of these measures may help inform individualised clinical assessment and management.</p>","PeriodicalId":49219,"journal":{"name":"Clinical Linguistics & Phonetics","volume":" ","pages":"1-20"},"PeriodicalIF":1.1,"publicationDate":"2026-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148551196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}