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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Publicación Prosodic skills in Spanish-speaking adolescents and young adults with Down syndrome(Wiley, 2023-12-28) López-Riobóo, Elena; Martínez Castilla, PastoraBackground Down syndrome (DS) is a neurodevelopmental disorder of genetic origin with a cognitive-behavioural profile that distinguishes it from other syndromes. Within this profile, language difficulties are particularly marked, having been more studied in childhood than in adulthood. More generally, there is a paucity of research on the prosodic skills of individuals with DS, despite the relevance of this linguistic component for effective communication. Aims This study aimed to analyse, for the first time, the prosodic profile of Spanish-speaking teenagers and young adults with DS. We hypothesized that participants with DS would show significantly lower skills for the perception and production of prosodic functions and forms when compared to peers with intellectual disability (ID) of unknown origin. We also hypothesized that teenagers and young adults with DS would have better prosody perception than prosody production. Methods & Procedures The final sample included in the study comprised 28 Spanish-speaking teenagers and young adults with DS and 29 teenagers and young adults with other ID matched on chronological age and nonverbal cognition. Their prosodic skills were tested by means of the Profiling Elements of Prosody for Speech and Communication battery. This battery allows for the separate evaluation of the comprehension and expression of the communicative functions of prosody and the discrimination and production of the forms that carry out such functions. Outcomes & Results In the prosody function tasks, which are the most adaptive tasks for the communicative process, we found, as expected, significantly lower scores on the turn-end, chunking, and focus tasks in the group with DS. However, no significant between-group differences were found for the affect tasks. Participants with DS also had significantly lower scores on the prosodic form tasks than participants with other ID. The results of the comparison between prosodic perception and production skills showed that a generalization about a better profile in comprehension versus production is not possible and that there is a dependence on the demands of the prosodic task undertaken. Conclusions & Implications The findings contribute to the ongoing development of the language profile of teenagers and young adults with DS and imply the need to design prosodic intervention programs based on their specific profile.Publicación Music skills of Spanish-speaking children with developmental language disorder(Elsevier, 2023-09) Martínez Castilla, Pastora; Calet, Nuria; Jiménez Fernández, GraciaBackground: According to temporal sampling theory, deficits in rhythm processing contribute to both language and music difficulties in children with developmental language disorder (DLD). Evidence for this proposition is derived mainly from studies conducted in stress-timed languages, but the results may differ in languages with different rhythm features (e.g., syllable-timed languages). Aims: This research aimed to study a previously unexamined topic, namely, the music skills of children with DLD who speak Spanish (a syllable-timed language), and to analyze the possible relationships between the language and music skills of these children. Methods and Procedures: Two groups of 18 Spanish-speaking children with DLD and 19 typically-developing peers matched for chronological age completed a set of language tests. Their rhythm discrimination, melody discrimination and music memory skills were also assessed. Outcomes and Results: Children with DLD exhibited significantly lower performance than their typically-developing peers on all three music subtests. Music and language skills were significantly related in both groups. Conclusions and Implications: The results suggest that similar music difficulties may be found in children with DLD whether they speak stress-timed or syllable-timed languages. The relationships found between music and language skills may pave the way for the design of possible language intervention programs based on music stimuli.Publicación Temporal-sampling theory and language in Down syndrome: An empirical study(Elsevier, 2024-11) Martínez Castilla, Pastora; López Riobóo, ElenaBackground: Temporal-sampling theory argues that difficulties in the processing of syllable stress auditory markers and in lexical stress discrimination contribute to explaining the language problems of children with developmental language disorder and of those with dyslexia. The theory has not been tested in other developmental disabilities. Aims: This research sought to assess the potential of temporal-sampling theory as a framework to accounting for language difficulties in Down syndrome (DS). Methods and procedures: Thresholds for auditory markers of lexical stress, lexical stress discrimination, and receptive vocabulary were studied in teenagers and young adults with DS and in peers with other intellectual disability (ID) of unknown origin matched on chronological age and non-verbal cognition. Outcomes and results: Frequency and intensity thresholds were higher in participants with DS, and their lexical stress discrimination and receptive vocabulary skills were lower than those of the group with other ID. Lexical stress discrimination was predicted by intensity thresholds and group, while receptive vocabulary was only predicted by lexical stress discrimination. Conclusions and implications: The results suggest that temporal-sampling theory is useful to explain language difficulties in individuals with DS or with other ID. This opens up new window opportunities for the design of language intervention programs in such populations.