Coarticulation in fricative-vowel syllables produced by children and adults: a preliminary report

An Ultrasound Study of the Development of Lingual Coarticulation during Childhood

“…The DAC model has been developed for adult speech, and testing the model for child speech has yet to be carried out. Age-related segment-specific differences in coarticulation, increasingly reported in the literature (e.g., Sussman et al, 1999;Katz and Bharadwaj, 2001;Zharkova et al, 2012Zharkova et al, , 2014Zharkova et al, , 2015bReidy, 2015;Noiray et al, 2017;Rubertus and Noiray, 2017), provide evidence that does not support either of the 2 theoretical models of coarticulation development described above, since the extent of coarticulation can increase or decrease with age depending on the speech sound and/or on the specific gestures involved in coarticulating the sound. In this study, vowel-on-consonant coarticulation in CV syllables was documented throughout childhood, using consonants which differ in their DAC properties: /p/, /t/, /s/ and /ʃ/.…”

“…And yet, the development of lingual coarticulation has been shown to be protracted, with certain non-adult-like patterns observed in children up to 12 years old (e.g., Zharkova et al, 2014). A growing number of studies have also shown that coarticulation development is segment-specific (Katz and Bharadwaj 2001;Zharkova et al, 2012Zharkova et al, , 2014Reidy, 2015). There is, however, very little information on the developmental course of segment-specific lingual coarticulatory patterns throughout childhood (see, e.g., Rubertus et al, 2015;Zharkova, 2017).…”

An ultrasound study of lingual coarticulation in /sV/ syllables produced by adults and typically developing children

“…Possibly as a result of the relative unavailability of suitable articulatory instrumental techniques, developmental studies of coarticulation comparing adults' and children's productions using articulatory data are very few. One example is an EMA study reported in [2]. An advantage of ultrasound over EMA is that it is non-invasive, and it registers the movement of the whole midsagittal section of the tongue, including the tongue root.…”

EMA compatibility of the Clarion 1.2 cochlear implant system

“…5,9 EMA also has been used in a recent study to investigate speech production changes after some aspects of hearing are restored with a cochlear implant (CI). 7 However, this particular study was restricted to a single individual using an Ineraid CI with a percutaneous connector devoid of implanted electronics, magnetic or radio frequency links.…”