@article{BrunnerGhoshHooleetal.2011,
  author    = {Brunner, Jana and Ghosh, Satrajit and Hoole, Philip and Matthies, Melanie and Tiede, Mark and Perkell, Joseph},
  title     = {The influence of auditory acuity on acoustic variability and the use of motor equivalence during adaptation to a perturbation},
  series = {Journal of speech, language, and hearing research},
  volume    = {54},
  journal   = {Journal of speech, language, and hearing research},
  number    = {3},
  publisher = {American Speech-Language-Hearing Assoc.},
  address   = {Rockville},
  issn      = {1092-4388},
  doi       = {10.1044/1092-4388(2010/09-0256)},
  pages     = {727 -- 739},
  year      = {2011},
  abstract  = {Purpose: The aim of this study was to relate speakers' auditory acuity for the sibilant contrast, their use of motor equivalent trading relationships in producing the sibilant /integral/, and their produced acoustic distance between the sibilants /s/ and /integral/. Specifically, the study tested the hypotheses that during adaptation to a perturbation of vocal-tract shape, high-acuity speakers use motor equivalence strategies to a greater extent than do low-acuity speakers in order to reach their smaller phonemic goal regions, and that high-acuity speakers produce greater acoustic distance between 2 sibilant phonemes than do low-acuity speakers. Method: Articulographic data from 7 German speakers adapting to a perturbation were analyzed for the use of motor equivalence. The speakers' produced acoustic distance between /s/ and /integral/ was calculated. Auditory acuity was assessed for the same speakers. Results: High-acuity speakers used motor equivalence to a greater extent when adapting to a perturbation than did low-acuity speakers. Additionally, high-acuity speakers produced greater acoustic contrasts than did low-acuity-speakers. It was observed that speech rate had an influence on the use of motor equivalence: Slow speakers used motor equivalence to a lesser degree than did fast speakers. Conclusion: These results provide support for the mutual interdependence of speech perception and production.},
  language  = {en}
}
@article{NoirayAbakarovaRubertusetal.2018,
  author    = {Noiray, Aude and Abakarova, Dzhuma and Rubertus, Elina and Kr{\"u}ger, Stella and Tiede, Mark},
  title     = {How do children organize their speech in the first years of life?},
  series = {Journal of speech, language, and hearing research},
  volume    = {61},
  journal   = {Journal of speech, language, and hearing research},
  number    = {6},
  publisher = {American Speech-Language-Hearing Assoc.},
  address   = {Rockville},
  issn      = {1092-4388},
  doi       = {10.1044/2018_JSLHR-S-17-0148},
  pages     = {1355 -- 1368},
  year      = {2018},
  abstract  = {Purpose: This study reports on a cross-sectional investigation of lingual coarticulation in 57 typically developing German children (4 cohorts from 3.5 to 7 years of age) as compared with 12 adults. It examines whether the organization of lingual gestures for intrasyllabic coarticulation differs as a function of age and consonantal context. Method: Using the technique of ultrasound imaging, we recorded movement of the tongue articulator during the production of pseudowords, including various vocalic and consonantal contexts. Results: Results from linear mixed-effects models show greater lingual coarticulation in all groups of children as compared with adults with a significant decrease from the kindergarten years (at ages 3, 4, and 5 years) to the end of the 1st year into primary school (at age 7 years). Additional differences in coarticulation degree were found across and within age groups as a function of the onset consonant identity (/b/, / d/, and /g/). Conclusions: Results support the view that, although coarticulation degree decreases with age, children do not organize consecutive articulatory gestures with a uniform organizational scheme (e.g., segmental or syllabic). Instead, results suggest that coarticulatory organization is sensitive to the underlying articulatory properties of the segments combined.},
  language  = {en}
}
@article{NoirayWielingAbakarovaetal.2019,
  author    = {Noiray, Aude and Wieling, Martijn and Abakarova, Dzhuma and Rubertus, Elina and Tiede, Mark},
  title     = {Back from the future},
  series = {Journal of speech, language, and hearing research},
  volume    = {62},
  journal   = {Journal of speech, language, and hearing research},
  number    = {8},
  publisher = {American Speech-Language-Hearing Association},
  address   = {Rockville},
  issn      = {1092-4388},
  doi       = {10.1044/2019_JSLHR-S-CSMC7-18-0208},
  pages     = {3033 -- 3054},
  year      = {2019},
  abstract  = {Purpose: This study examines the temporal organization of vocalic anticipation in German children from 3 to 7 years of age and adults. The main objective was to test for nonlinear processes in vocalic anticipation, which may result from the interaction between lingual gestural goals for individual vowels and those for their neighbors over time. Method: The technique of ultrasound imaging was employed to record tongue movement at 5 time points throughout short utterances of the form V1\#CV2. Vocalic anticipation was examined with generalized additive modeling, an analytical approach allowing for the estimation of both linear and nonlinear influences on anticipatory processes. Conclusions: A developmental transition towards more segmentally-specified coarticulatory organizations seems to occur from kindergarten to primary school to adulthood. In adults, nonlinear anticipatory patterns over time suggest a strong differentiation between the gestural goals for consecutive segments. In children, this differentiation is not yet mature: Vowels show greater prominence over time and seem activated more in phase with those of previous segments relative to adults.},
  language  = {en}
}
@article{NoirayRiesTiedeetal.2020,
  author    = {Noiray, Aude and Ries, Jan and Tiede, Mark and Rubertus, Elina and Laporte, Catherine and M{\´e}nard, Lucie},
  title     = {Recording and analyzing kinematic data in children and adults with SOLLAR},
  series = {Laboratory Phonology: Journal of the Association for Laboratory Phonology},
  volume    = {11},
  journal   = {Laboratory Phonology: Journal of the Association for Laboratory Phonology},
  number    = {1},
  publisher = {Ubiquity Press},
  address   = {London},
  issn      = {1868-6354},
  doi       = {10.5334/labphon.241},
  year      = {2020},
  abstract  = {Understanding the development of spoken language in young children has become increasingly important for advancing basic theories of language acquisition and for clinical practice. However, such a goal requires refined measurements of speech articulation (e.g., from the tongue), which are difficult to obtain from young children. In recent years though, technological advances have allowed developmental researchers to make significant steps in that direction. For instance, movements of the tongue, an articulator that is essential for spoken language, can now be tracked and recorded in children with ultrasound imaging. This technique has opened novel research avenues in (a)typical language acquisition, enabling researchers to reliably capture what has long remained invisible in the speech of young children. Within this context, we have designed an experimental platform for the recording and the processing of kinematic data: SOLLAR (Sonographic and Optical Linguo-Labial Articulatory Recording system). The method has been tailored for children, but it is suitable for adults. In the present article, we introduce the recording environment developed to record over 100 children and 30 adults within SOLLAR. We then describe SOLLAR's data processing framework, providing examples of data visualization and a summary of strengths and limitations.},
  language  = {en}
}