Diferencias fonológicas entre síndromes del neurodesarrollo: evidencias a partir de los procesos de simplificación fonológica más frecuentes

Guía, Irene Hidalgo de la; Heinze, Elena Garayzábal

doi:10.5209/rlog.62942

Cited by 11 publications

(13 citation statements)

References 19 publications

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“…These results were consistent with research reviewed by Stoel-Gammon (2001). A high frequency of substitution and syllable structure processes appears to be a characteristic of DS compared to other neurodevelopmental genetic disorders (Barnes et al, 2009;Hidalgo de la Guía and Garayzábal, 2019). A relative low proportion of Addition processes in Down syndrome had been previously reported by Van Borsel (1996), which could be explained by reduced short-term memory span.…”

Section: Discussionsupporting

confidence: 90%

“…Assessments of phonological development in DS populations are mainly based on two elicitation methods: tests of articulation (Dodd, 1976;Van Borsel, 1988, 1996Roberts et al, 2005;Rupela et al, 2010); spontaneous or connected speech (Stoel-Gammon, 1980;Barnes et al, 2009); and sometimes on a combination of both an articulation test and spontaneous speech (Sommers et al, 1988;Parsons and Iacono, 1992;Yousif, 2018;Hidalgo de la Guía and Garayzábal, 2019). Studies indicate a higher frequency of phonological processes in connected speech, but only Yousif (2018) reports some evidence.…”

Section: Introductionmentioning

confidence: 99%

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Assessing Phonological Profiles in Children and Adolescents With Down Syndrome: The Effect of Elicitation Methods

et al. 2021

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In the context of comparing linguistic profiles across neurodevelopmental disorders, Down syndrome (DS) has captured growing attention for its uneven profile. Although specific weaknesses in grammatical and phonological processing have been reported, research evidence on phonological development remains scarce, particularly beyond early childhood. The purpose of this study was to explore the phonological profiles of children and adolescents with Down syndrome. The profiles were based on the frequency and relative proportion of the processes observed by classes, and they were compared to those of typically developing preschool children of similar verbal age. A complementary goal was to assess the effect of two different methods of elicitation: a test of articulation and spontaneous speech sampling. Finally, intergroup and intragroup differences in full match percentages between three positions at syllable-level (complex onset, medial coda, and final coda) were assessed. The results of the present study confirmed that the frequency of phonological processes in children and adolescents with DS is atypically high and is above what is expected for lexical age and at the same level as grammatical age. Highly increased frequency of processes, consistent in all kinds of processes and positions at the syllable-level, and asynchronous with verbal age and mental age suggest atypical developmental trajectories of phonological development in the Down syndrome population.

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Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Assessing Phonological Profiles in Children and Adolescents With Down Syndrome: The Effect of Elicitation Methods

et al. 2021

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“…Apart from the neurological features described above, it has been shown that the population with SMS also has swallowing difficulties, hypotonia of the velopharyngeal and orofacial muscles (Sonies et al, 1997;Solomon et al, 2002), and alterations in the peripheral nervous system (75% of children with SMS) (Greenberg et al, 1996). Phonological difficulties and many simplification processes related to velopharyngeal hypotonia (distortions affecting velar and, mainly, fricative consonant phonemes) have also been described (Hidalgo and Garayzábal, 2019). Therefore, taking these findings into account, it would seem justified to relate the results of the acoustic analysis of this paper to the neuromotor particularities of SMS.…”

Section: Discussionmentioning

confidence: 99%

“…Most of the individuals with SMS show language disorders that mainly affect production and are focused on the morphosyntactic, pragmatic, and phonetic-phonological levels (Garayzábal Heinze et al, 2011;Lamônica et al, 2012;Garayzábal and Lens, 2013;Wilde et al, 2016). Their phonatory profile and speech features, both children and adults, are dysphonia, high f0, excess vocal muscle stiffness, disfluencies, tachylalia, numerous syllabic simplifications, phoneme omissions, and, in general, a high unintelligibility of utterances (Hidalgo and Garayzábal, 2019;Hidalgo-de la Guía, 2019;Hidalgo-De la Guía et al, 2020).…”

Section: Smith-magenis Syndromementioning

confidence: 99%

Acoustic Analysis of Phonation in Children With Smith–Magenis Syndrome

Guía

Heinze

Gómez-Vilda

et al. 2021

Front. Hum. Neurosci.

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Complex simultaneous neuropsychophysiological mechanisms are responsible for the processing of the information to be transmitted and for the neuromotor planning of the articulatory organs involved in speech. The nature of this set of mechanisms is closely linked to the clinical state of the subject. Thus, for example, in populations with neurodevelopmental deficits, these underlying neuropsychophysiological procedures are deficient and determine their phonation. Most of these cases with neurodevelopmental deficits are due to a genetic abnormality, as is the case in the population with Smith–Magenis syndrome (SMS). SMS is associated with neurodevelopmental deficits, intellectual disability, and a cohort of characteristic phenotypic features, including voice quality, which does not seem to be in line with the gender, age, and complexion of the diagnosed subject. The phonatory profile and speech features in this syndrome are dysphonia, high f0, excess vocal muscle stiffness, fluency alterations, numerous syllabic simplifications, phoneme omissions, and unintelligibility of speech. This exploratory study investigates whether the neuromotor deficits in children with SMS adversely affect phonation as compared to typically developing children without neuromotor deficits, which has not been previously determined. The authors compare the phonatory performance of a group of children with SMS (N = 12) with a healthy control group of children (N = 12) matched in age, gender, and grouped into two age ranges. The first group ranges from 5 to 7 years old, and the second group goes from 8 to 12 years old. Group differences were determined for two forms of acoustic analysis performed on repeated recordings of the sustained vowel /a/ F1 and F2 extraction and cepstral peak prominence (CPP). It is expected that the results will enlighten the question of the underlying neuromotor aspects of phonation in SMS population. These findings could provide evidence of the susceptibility of phonation of speech to neuromotor disturbances, regardless of their origin.

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“…Neurodevelopmental disorders are related to a specific cognitive profile, which is characterized by moderate intellectual disability , poor working memory, and attention deficit and hyperactivity. Language is delayed and speech disorders continue into adulthood (Udwin et al 2001;Solomon et al 2002;Gropman et al 2006;Garayzábal Heinze et al 2011;Osório et al 2012;Heinze and Lens 2013;Garayzábal et al 2014;Hidalgo and Garayzábal 2019). Concerning the behavioral phenotype, individuals with SMS tend to easily show states of anxiety and nervousness, especially in new situations.…”

Section: Introductionmentioning

confidence: 99%

Voice Characteristics in Smith–Magenis Syndrome: An Acoustic Study of Laryngeal Biomechanics

2020

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Smith–Magenis syndrome (SMS) is a rare genetic disease characterized by intellectual disability, serious behavior disorders, neurodevelopment delay, and speech and language disorders. An acoustic and biomechanical analysis of the voice of SMS young adults was carried out due to (a) the close relationship between the laryngeal biomechanics and the clinical and emotional state of a person; (b) the fact that no research on the voice in this syndrome has been conducted previously. The vocal timbre of most people diagnosed with SMS does not seem to be according to the complexion of diagnosed individuals, nor to their gender and age, so it could be interesting to attend the analysis of phonation of people with a rare genetic syndrome such as SMS. We used BioMetPhon, a specific piece of software to analyze the glottal source and biomechanics of vocals folds. Nineteen features related to dysphonia, physiology, and biomechanics of the vocal folds were considered. The adult phonation of 9 individuals with SMS was analyzed and compared to 100 normative male and female adult voices. Results showed that the phonation of the SMS group significantly deviates from the adult normophonic profile in more than one of the 19 features examined, such as stiffness of the thyroarytenoid muscle and dynamic mass of the vocal fold cover, among others.

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Diferencias fonológicas entre síndromes del neurodesarrollo: evidencias a partir de los procesos de simplificación fonológica más frecuentes

Cited by 11 publications

References 19 publications

Assessing Phonological Profiles in Children and Adolescents With Down Syndrome: The Effect of Elicitation Methods

Assessing Phonological Profiles in Children and Adolescents With Down Syndrome: The Effect of Elicitation Methods

Acoustic Analysis of Phonation in Children With Smith–Magenis Syndrome

Voice Characteristics in Smith–Magenis Syndrome: An Acoustic Study of Laryngeal Biomechanics

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