Browsing by Author "Quezada, Camilo"
Now showing 1 - 10 of 10
Results Per Page
Sort Options
- ItemAerodynamic Characteristics of Growl Voice and Reinforced Falsetto in Metal Singing(2019) Guzmán, Marco; Acevedo Encalada, Karol Stefanie; Leiva, Fernando; Ortiz, Vasti; Hormázabal, Nicolás; Quezada, Camilo
- ItemAlcances y límites de un mapa prosódico(2020) Román, Domingo; Muñoz Builes, Diana Marcela; Quezada, Camilo; Atria, José JoaquínEl presente artículo tiene como objetivo presentar el primer “Mapa prosódico de Chile”, un proyecto de largo alcance que pretende documentar y describir, fonética y fonológicamente, los rasgos suprasegmentales del español hablado por chilenos. Para entender su dimensión, se proporciona una caracterización de los mapas prosódicos que se encuentran actualmente en curso, tales como AMPER, ATLES y otros relacionados, analizando los parámetros estu-diados en cada uno de ellos y enfatizando en sus fundamentos, orientaciones y alcances. Finalmente, se incluye una reflexión sobre las herramientas libres para construir mapas en internet, especialmente del proyecto OpenStreetMap, y sus posibilidades para futuros traba-jos internacionales coordinados.
- ItemAssociation between temporal resolution and Specific Language Impairment : the role of nonsensory processing(2015) Alvarez, Waleska; Fuente, Adrian; Coloma T., Carmen J.; Quezada, Camilo
- ItemDevelopment of grammaticality and sentence complexity in monolingual Spanish-speaking children with specific language impairment: An exploratory study(2019) Julia Coloma, Carmen; Araya, Claudia; Quezada, Camilo; Mercedes Pavez, Maria; Alvarez, Carlos; Maggiolo, MariangelaThis study inspects the development of grammaticality and sentence complexity in Spanish-speaking children with specific language impairment (SLI). Forty-seven children were grouped following age (4-5 and 6-7) and diagnostics (SLI and Typical Language Development, TLD). Children's oral narratives were analyzed considering grammaticality and sentence complexity. Results showed that children with SLI and TLD children follow a similar developmental pattern, both in grammaticality and sentence complexity. However, although the sentence complexity of children with SLI is similar to the sentence complexity of children with TLD, children with SLI are more ungrammatical than children with TLD. Finally, correlation between complex sentences and ungrammatical sentences was found to evolve differently when considering children with SLI and children with TLD.
- ItemDevelopment of Linguistic and Reading Skills and Their Relationship to the Comprehension of Narrative and Expository Texts in Second and Third Grade Students(2023) Quezada, Camilo; Aravena, Soledad; Maldonado, Marcela; Julia Coloma, CarmenThe aim of the present study was to examine reading comprehension in relation to the linguistic and reading skills commonly observed in the literature: prosody, vocabulary, grammar, listening comprehension, accuracy, and reading speed. Specifically, we sought to 1) determine how the selected language and reading skills influence text comprehension; 2) determine whether this influence varies when comparing second and third grade students; and 3) observe whether the influence of the selected skills differs depending on genre (narrative or expository text). The final sample consisted of 297 second and third graders (136 and 161, respectively) from two private schools in Santiago, Chile. The results showed that the influence of the assessed skills on reading comprehension varied according to school level (smaller effect in second grade) and text type (smaller effect for narrative texts). In general, vocabulary and listening comprehension were the two skills with the greatest influence on reading comprehension. No relevant effect of reading accuracy or speed on comprehension was observed. It is concluded that once a certain level of basic literacy is reached, the skills that most influence reading comprehension are linguistic skills, and that these show a consolidation in the third grade that may be related to cognitive maturation.
- ItemDiscriminación auditiva de fonemas modificados experimentalmente para el logro de tareas de análisis fonémico(STM Editores S.A, 2024) Álvarez Durán, Fernando Raimundo; Pérez, Hernán; Aravena Reyes, María Soledad; Quezada, CamiloAntecedentes y objetivo El presente estudio entrega datos de referencia sobre la discriminación auditiva de fonemas en una población de sujetos normoyentes hablantes nativos del español de Chile. El objetivo es determinar si el alargamiento de fonemas incide en la capacidad de discriminación auditiva. Participantes, materiales y método La muestra estuvo constituida por 40 sujetos con edades entre los 19 y 36 años, que fueron sometidos a una tarea de discriminación auditiva de una serie de 35 pares de palabras. Estas palabras presentaban diferencias respecto de la duración de uno de los fonemas consonánticos. Para el logro de los objetivos, fueron comparados pares de palabras sin modificación en ningún fonema, con aquellas en que la duración del fonema fue aumentada al doble (2x), al triple (3x) y al quíntuple (5x), además de la comparación intercategorías. Resultados Los resultados evidencian que los sujetos presentan dificultad al discriminar entre fonemas que tienen las menores diferencias acústicas de duración, especialmente cuando se comparó el fonema alargado al doble (2x) y el fonema alargado al triple (3x) de su duración natural. Estos resultados también se observan al comparar por tipo específico de fonema, ya que en todos (/s/, /n/, /t/ y /ʝ/) salvo en /r/, la comparación que generó más dificultad fue la de la palabra con el fonema aumentado al doble y al triple de la duración natural. Conclusiones La capacidad perceptiva de los sujetos disminuye en la medida que los estímulos son más parecidos en su duración.
- ItemEMPATHY AND PITCH CONVERGENCE(UNIV CONCEPCION, FAC HUMANIDADES ARTE, 2012) Quezada, Camilo; Pablo Robledo, Juan; Roman, Domingo; Cornejo, CarlosThis study explored the relation between empathy and phonetic convergence. The working hypothesis was that empathy among two individuals translates into a synchronic process impacting on pitch values. This was studied by recording 27 dyadic interactions assigned to one of two experimental conditions (labeled as Empathic and Non-Empathic). The evolution of pitch in time was observed in some of the questions used to guide the conversations. In each conversation pitch was analyzed for both participants to determine whether phonetic convergence occurred or not. Descriptive and inferential analyses were implemented, the results being consistent with the manipulation devised to distinguish each experimental condition. The final data support the existence of a relation between some phonetic features of speech and dispositional dimensions that although typically overlooked by classical models of cognition are largely present in everyday interactions. Also data support the idea of a stronger empathy effect on mixed-gender dyads than on same-gender dyads.
- ItemStructural effects of amphiphilic block copolymers on the gold nanoplates synthesis. Experimental and theoretical study(2011) Saldías, César; Leiva Campusano, Ángel; Quezada, Camilo; Jaque Olmedo, Pablo César; Gargallo Gómez, Ligia Teresita; Radić Foschino, Deodato D.
- ItemValidation of the abbreviated version of the Token Test in Latin American Spanish stroke patients(2024) Julio-Ramos, Teresa; Mora-Castelletto, Valentina; Conejeros-Pavez, Jose; Saez-Martinez, Josette; Solinas-Ivys, Pia; Donoso, Pamela; Soler-Leon, Bernardita; Martinez-Ferreiro, Silvia; Quezada, Camilo; Mendez-Orellana, CarolinaBackground: The abbreviated version of the Token Test (aTT) is widely used to assess language comprehension deficits in stroke patients (SPs). However, aTT has not been validated for Latin American Spanish speakers, so clinicians tend to use cut-off scores for aTT validated in developed countries. Aims: To provide normative data for the Spanish aTT (Sp-aTT) in healthy Chilean Spanish-speaking and SP, determining the influence of sociodemographic variables such as gender, age and education on Sp-aTT performance. Methods & Procedures: A total of 210 healthy volunteers (age range = 18-88 years) and 197 SPs (age range = 23-94 years), all native speakers of Chilean Spanish, were recruited. The association of age, gender and years of education on the Sp-aTT performance was analysed. Specificity and sensibility analyses of the Sp-aTT to diagnose language comprehension deficits were completed. Outcomes & Results: Only age (p < 0.001) and years of education (p < 0.001) impacted the total score of Sp-aTT. Gender did not show an association with Sp-aTT performance (p = 0.181). For SPs, the Sp-aTT score showed a significant positive correlation (rho = 0.4, p < 0.001) with the aphasia severity rating scale (ASRS) score. For Sp-aTT, the area under the curve was 0.97, and the optimal cut-off score for the Sp-aTT was 30 (0.73 of sensitivity, 0.92 of specificity and a Youden index of 0.644). Conclusions & Implications: Age and years of education are two key factors to be controlled for when determining the optimal cut-off points for the Sp-aTT. Our results also highlight the need for language-specific norms in stroke and aphasia research.