Persona:
Martínez Castilla, Pastora

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0000-0003-2369-0641
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Martínez Castilla
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Pastora
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20212
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Autor: Corrales-Astorgano, Mario × Fecha de inicio: 2020 ×

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Mostrando 1 - 2 de 2
  • Miniatura
    Publicación
    PRAUTOCAL corpus: a corpus for the study of Down syndrome prosodic aspects
    (Springer, 2021-05-27) Escudero-Mancebo, David; Corrales-Astorgano, Mario; Cardeñoso-Payo, Valentín; Aguilar, Lourdes; González-Ferreras, César; Martínez Castilla, Pastora; Flores-Lucas, Valle; Ministerio de Economía y Competitividad; Consejería de Educación de la Junta de Castilla y León; BBVA Foundation
    Oral productions of speakers with Down syndrome exhibit special characteristics that have been the target of study for decades. In spite of this attention, the availability of rich resources for its analysis is still scarce. In this paper, we present the definition and compiling procedure of a corpus of semicontrolled oral productions of speakers with Down syndrome that aims to allow the analysis of how these speakers with these speakers produce functional and linguistic aspects of speech. The PRAUTOCAL corpus has been recorded while using a video game for training oral competences. Utterances are related to well defined communicative tasks recorded by both speakers with Down syndrome and typically developing speakers. We present the procedure for human experts to evaluate the recordings and the transcription criteria followed for enriching the utterances of the corpus. PRAUTOCAL permits the analysis of the clear contrast in voice and speech between individuals with Down syndrome and typically developing speakers, taking into account the high heterogeneity of the speech problems characteristic of the syndrome. This material allows the analysis of the speech problems in Down syndrome, with applications to the generation of knowledge that could be used in future works for therapists to prepare specific training or enriching diagnosis regarding possible speech and language disorders.
  • Miniatura
    Publicación
    Analysis of atypical prosodic patterns in the speech of people with Down syndrome
    (Elsevier, 2021-07-02) Corrales-Astorgano, Mario; Escudero-Mancebo, David; González-Ferreras, César; Cardeñoso Payo, Valentín; Martínez Castilla, Pastora; Ministerio de Economía y Competitividad; Consejería de Educación de la Junta de Castilla y León
    The speech of people with Down syndrome (DS) shows prosodic features which are distinct from those observed in the oral productions of typically developing (TD) speakers. Although a different prosodic realization does not necessarily imply wrong expression of prosodic functions, atypical expression may hinder communication skills. The focus of this work is to ascertain whether this can be the case in individuals with DS. To do so, we analyze the acoustic features that better characterize the utterances of speakers with DS when expressing prosodic functions related to emotion, turn-end and phrasal chunking, comparing them with those used by TD speakers. An oral corpus of speech utterances has been recorded using the PEPS-C prosodic competence evaluation tool. We use automatic classifiers to prove that the prosodic features that better predict prosodic functions in TD speakers are less informative in speakers with DS. Although atypical features are observed in speakers with DS when producing prosodic functions, the intended prosodic function can be identified by listeners and, in most cases, the features correctly discriminate the function with analytical methods. However, a greater difference between the minimal pairs presented in the PEPS-C test is found for TD speakers in comparison with DS speakers. The proposed methodological approach provides, on the one hand, an identification of the set of features that distinguish the prosodic productions of DS and TD speakers and, on the other, a set of target features for therapy with speakers with DS.