ABSTRACT
Resumen La comprensión lectora resulta fundamental en la vida escolar de los niños, dado que constituye el principal mecanismo para la adquisición de nuevos conocimientos. Distintos estudios han analizado la relación entre la comprensión lectora, las habilidades lingüísticas y el nivel lector de los sujetos. Sin embargo, resulta importante para el estudio del procesamiento textual, atender también al tipo de estructura de los textos. El presente trabajo se propone comparar el desempeño de un grupo de niños hispanohablantes en comprensión oral y escrita de dos tipos textuales distintos: narrativos y expositivos. Para ello, se evaluó a un grupo de 32 niños de 4to grado de una escuela primaria del conurbano bonaerense argentino mediante pruebas de comprensión oral y escrita de textos narrativos y expositivos. Además, se administró una prueba de vocabulario y de precisión y velocidad en la lectura de palabras. Los resultados señalaron la existencia de correlaciones entre la comprensión oral y escrita de los dos tipos textuales evaluados, y entre el desempeño en comprensión oral y escrita y el nivel de vocabulario de los niños. El análisis comparativo entre modalidades de presentación señaló un desempeño significativamente superior en la comprensión de textos narrativos orales frente a los escritos. Esta diferencia no se trasladó a los textos expositivos en los cuales los niños obtuvieron desempeños bajos, en ambas modalidades. Los datos obtenidos sugieren que los textos expositivos presentan un formato con características específicas que complejizan la comprensión de los niños más allá del soporte en el cual se presenten.
Abstract Reading comprehension is the ability to create a mental representation of a written text. It constitutes the main mechanism through children incorporate new knowledge at school age. Reading comprehension achievement has been systematically associated with oral comprehension and reading rate. Furthermore, both oral and reading comprehension has been related to inferences generation and different linguistic abilities, like vocabulary and syntax processing. In the case of text comprehension, also orthographic recognition of written words plays a fundamental role and, for that reason, reading comprehension would be a greater challenge than oral comprehension for early readers. Indeed, word recognition during reading is essential for text meaning construction. It is well known that a slow and laborious reading mechanism would overload cognitive processing and that reading automaticity is essential to carry out text processing. Longitudinal studies realized in different orthographies indicated that reading rate was the variable that had greatest impact on reading comprehension in early readers. In studies carried out in shallow orthographies, it was also observed that reading performance have an important impact on reading comprehension measure after 3 to 5 years of instruction. However, although impact of reading skills and oral comprehension mechanisms on reading comprehension has been reported in several studies, there is another important factor to consider: text structure. Studies propose that children tend to understand "narrative schemas" more easily since they are exposed to this type of text from a very early age. Likewise, all narrative texts present, in general, the same type of structure, respect temporal sequence of events and focus on story characters, their actions and motivations. In contrast, expository texts present new information to children, are oriented to a specific topic, contain less familiar and more technical vocabulary and a higher level of abstraction. This type of structure presents numerous cohesive connections and greater propositional density than narrative texts. The present study aims to compare listening and reading comprehension of narrative and expository text. For this, a group of 32 4th graders was evaluated in oral and reading comprehension of narrative and expository texts. In reading comprehension test, children read narrative and expository texts and then orally answered a series of questions. In oral comprehension, both narrative and expository texts were read aloud to children and then they answered questions about the texts orally. Vocabulary and reading rate were also measured. Data analysis shows correlations between oral comprehension and vocabulary. Reading comprehension were associated to vocabulary, oral comprehension and reading rate. Results suggest that oral and reading comprehension are associated with different linguistic skills and to each support access skills. In comprehension test, measures show higher performance in narrative oral comprehension texts when compared to reading comprehension. This result could be related to children reading rate. In fact, reading performance shows that children were "slow readers" according to the reading tests scales used in this study. Difference between oral and written comprehension in narrative texts, was not transferred to expository. In this type of texts children had low scores, without significant differences, in oral and reading comprehension. Results suggested that expository structures challenge children comprehension in both, oral and written modality. It is suggested that different types of expository texts difficult hierarchization of information that allows, in turn, the construction of text mental representation. Data of this study suggest the importance of establish interventions that allow children to improv text processing for access higher levels of comprehension in different textual structures. Furthermore, it is necessary in educational practices to expose children to expository structures from an early age. On the other hand, it is necessary to rethink reading instruction methods that originate low reading performance.
ABSTRACT
Las alteraciones sintácticas han sido documentadas en personas con diferentes perfiles de afasia. Este trabajo se propone mostrar el diseño de una prueba que permite evaluar específicamente la comprensión de oraciones en español con tres tipos de oraciones: activas, pasivas y hendidas o dislocadas de objeto. La primera presenta orden estructural canónico Sujeto-Verbo-Objeto, mientras que las otras dos presentan el orden inverso. Participaron del estudio 4 personas con afasia (PCA) y un grupo control de 18 sujetos sin lesiones ni alteraciones del lenguaje emparejados en edad y nivel de escolaridad. Los resultados mostraron que el grupo de pacientes tuvo un peor rendimiento que el grupo control lo que evidencia un perfil de PCA con alteraciones en la comprensión de oraciones. Además, el rendimiento de las PCA en las oraciones activas fue significativamente mejor que en las otras dos estructuras evidenciando un efecto de canonicidad. La prueba diseñada resulta ser un instrumento sensible y útil para el diagnóstico de los déficits sintácticos en la afasia(AU)
Syntactic deficits have been documented in people with different aphasia profiles. This work aims to show the design of a test that allows to assess comprehension in Spanish with three specific sentences types: active, passive and object cleft. The former presents canonical Subject-Verb-Object structural order, while the other two present the inverse order. Four people with aphasia (PWA) and a control group of 18 subjects without lesions or language disorders matched for age and level of education participated in the study. The results showed that the patient group had lower performance than the control group, evidencing a PWA profile with alterations in sentence comprehension. Furthermore, the performance of the PWA group attested the expected canonicity effect-- it was significantly better for active sentences than for the other two structures. The designed test turns out to be a sensitive and useful instrument for the assessment of syntactic deficits in aphasia(AU)
Subject(s)
Aphasia , Language , Comprehension , DiagnosisABSTRACT
La lectura fluida se caracteriza por ser comprensiva, rápida y sin errores. Este trabajo se propone estudiar la fluidez lectora en voz alta y silente con medidas de comprensión de textos y velocidad. Además, se identificará cómo la precisión y la velocidad lectora en voz alta y silente están implicadas en la comprensión en cada modalidad. Participaron 41 niños y niñas de 3° grado que respondieron una tarea estandarizada de lectura de palabras y no palabras y dos tareas de lectura y comprensión de texto diseñadas ad hoc. Los resultados indican que la velocidad lectora no varía según la modalidad, pero evidencian un mejor rendimiento en comprensión al leer de manera silente. Asimismo, las medidas de precisión de lectura de palabras y no palabras aisladas se asocian con la velocidad en voz alta y silente, mientras que la precisión al leer palabras en el texto está relacionada con la comprensión lectora silente
Fluent text reading is fast, accurate and comprehensive. The aim of this research is to study oral and silent reading fluency using comprehension and speed measures to establish differences between reading modalities. It will also identify the role of word accuracy and speed measures in reading comprehension in both modalities. A sample of 41 children from 3rd grade was evaluated with a standardized word and nonword reading task, and with an oral and a silent reading comprehension ad hoc designed tasks. Measures of oral and silent reading speed and reading comprehension scores were compared. Results showed no differences between speed reading rates and a better performance in silent reading comprehension. Additionally, reading accuracy measures of word and nonwords have been associated with time reading measures in both modalities, while reading accuracy measures of words in the text have been found involved in silent reading comprehension
Subject(s)
Humans , Child , Reading , ComprehensionABSTRACT
En este trabajo se investigó el procesamiento de los rasgos de género y número en la producción de la concordancia sujeto-verbo y sujeto-adjetivo predicativo del español. Bajo el paradigma de elicitación de errores diseñamos un experimento en el que se manipuló el género del sustantivo núcleo del sujeto (N1) y del sustantivo interfiriente (N2) (masculino-femenino), y el número de N1 y de N2 (singular-plural): Ejemplo: El abuelo (N1) del chico (N2). Participaron del experimento 20 sujetos a los que se les presentó en forma visual la base del adjetivo por 500 ms (PEINAD_) y luego el preámbulo (4000 ms.) que debían leer y completar con el verbo ser o estar y el adjetivo flexionado. Ejemplo: El abuelo del chico está peinado. A cada sujeto se le administró una lista con 128 targets. Se analizó el patrón de errores y de omisiones de la concordancia sujeto-verbo (S-V) y sujeto-predicativo (S-P). Los resultados arrojaron efectos de marcación de número y de género. Los datos indicaron que los participantes produjeron más errores de concordancia S-V cuando el sustantivo interfiriente estaba en plural; mientras que el rasgo más influyente para la concordancia S-P fue el género femenino del sustantivo núcleo del sujeto. Los datos obtenidos en nuestro trabajo experimental fueron analizados en términos de una teoría general del procesamiento de modo que permiten informar un modelo de producción de la concordancia aún en desarrollo.
In this work the processing features of gender and number in subject-verb agreement and subject-predicate adjective in the sentence production in Spanish was investigated. As a general objective, in this work we set out to investigate the processing of the features that come into play in both subject-verb and subject-adjective predicative agreement in our language. Specifically, an attempt will be made to answer if the features of gender and number are processed in the same way, if the feature have a default value and if the values present differences, that is, if the singular differs from the plural, and the masculine from the feminine. This will allow us to establish if any of these values is more error-sensitive. In addition, we seek to identify the role of the marking concept. Under the paradigm of error elicitation we designed an experiment in which the Gender of the head noun (N1) and local noun (N2) (Masculine-Feminine),and the Number of N1 and N2 (Singular-Plural) was manipulated: Example: El abuelo (N1) del niño (N2). 20 subjects participated in the experiment which were presented in visual form the basis of the adjective for 500 ms. (PEINAD_) and then the preamble (4000 ms.) The participants read and completed with the verb "to be" and inflected adjective: Example: El abuelo del niño está peinado. Each participant was given a list of 128 targets. The pattern of errors and omissions of subject-verb agreement (S-V) and subject-predicate (S-P) was analyzed. The results showed main effects of number and gender. The data indicated that the participants produced more attraction errors of S-V when the local noun was in plural; while the most influential feature for S-P agreement was the feminine gender of the head noun of the subject. In summary, in relation to the agreement between the subject and the verb, and specifically, for the number feature, classical asymmetry was found, with greater interference when the head noun appeared in singular and the local noun in plural. The surprising fact, which could come to light given the characteristics of the design of the experiment, is that the attraction occurred more strongly when the gender of both nouns matched. With regard to agreement of subject- adjective predicate, and with respect to the gender of the nouns and the adjective, a main effect of the gender of the head noun was found, with more errors when the N1 appeared in feminine. We also found an interaction between the gender of N1 and the gender of N2, with more errors when the N1 appeared in feminine and N2 in masculine, and at the same time when the number of both coincided. The data suggest that it seems that the most influential feature to make the agreement between the subject and the predicate adjective is the gender of head noun, with a higher probability of interference when it appears in the feminine gender. In sum, our experimental research gathered evidence that allows us to progress in the characterization of how and when the processing of agreement and interference occurring in situations forced by experimental conditions as in natural speech. In particular, we analyze the characteristics of the gender and number features and the role of the marking concept. The data obtained in our experimental work were analyzed in terms of a general theory of processing so as to inform a production model of the still developing agreement.
ABSTRACT
En lenguas con distintos sistemas ortográficos como el inglés, francés, finés e italiano se encontraron efectos de la presencia de morfemas en tareas que involucran el procesamiento de palabras escritas durante el desarrollo lector. Esta sensibilidad a la morfología se observa muy tempranamente en los lectores y también se ha descripto en niños con dificultades en la lectura. El objetivo del trabajo que se informa fue obtener evidencia acerca del rol de la morfología durante el proceso de aprendizaje de la lectura en español. Para ello se evaluaron tres grupos de niños de segundo a cuarto grado con tareas de decisión léxica y de lectura en voz alta, utilizando palabras y no palabras morfológicas, compuestas por dos morfemas en una combinación nueva y no palabras simples, sin componentes morfológicos. Los resultados mostraron, por un lado, un efecto de frecuencia para el procesamiento de palabras en ambas pruebas y, por otro, un efecto de interferencia de los morfemas en la tarea de decisión léxica y de facilitación en la lectura en voz alta para las no palabras compuestas por morfemas. Estos efectos se interpretan como el resultado del desarrollo temprano de un léxico ortográfico que incluye morfemas como unidades de representación utilizadas por los lectores iniciales para el reconocimiento y la lectura de estímulos nuevos. Esto se produce en detrimento de los procesos sublexicales que usualmente se utilizan para procesar estos estímulos nuevos y que son más lentos y laboriosos puesto que procesan unidades menores que el morfema o la palabra completa.
Several studies on literacy acquisition conducted in different orthographies such as English, French, Finnish and Italian have shown that morphemes play an early role in visual word processing such as reading and lexical decision. Also, the degree of consistency or transparency between orthography and phonology in a language seems to play a role in the size of the processing units used by young readers. In scripts with highly inconsistent grapheme - phoneme correspondences such as English or French units larger than the grapheme are early used due to the unpredictability of grapheme - phoneme finer grain size mappings. Thus morpheme -and whole word- based reading are early developed by children in these languages. Conversely, in highly consistent languages like Italian or Spanish the grapheme is a reliable unit for visual word processing since almost invariably a single grapheme maps onto a single phoneme. In the acquisition of such scripts whole word reading would be developed later on. This diminished morphological effect in normal development has been explained based on the influence of larger grain size units such as whole words as children master of literacy increases. For instance, Italian developing readers have been shown to be early affected by the morphological components of a stimulus but morphology continued to affect visual word processing only in older children with reading difficulties. Thus this morphological sensitivity seems to develop early in childhood even in transparent orthographies as Italian and it has been described to continue affecting processing only in individuals with reading difficulties. However and to the best of our knowledge very few studies on the influence of morphology in Spanish children have been conducted. None of them was on the influence of morphology in visual word processing tasks such as word reading and lexical decision. That is why the aim of the present study was to obtain evidence of the role of morphology in early literacy acquisition in Spanish. Three groups of children from 2nd to 4th year of primary school participated in the study. Participants were administered a lexical decision and a reading task with high and low frequency words and: (1) morphological non-words made up of morphemes combination (root and suffix); and (2) non-morphological simple non-words. The results showed an effect of frequency in the processing of words, i.e., better processing of highly frequent words as compared to low frequency ones. The influence of a lexical variable like frequency shows that the orthographic input lexicon is also early organized in children that learn the script of a transparent language. In lexical decision morphologically complex non-words were processed with more errors than morphologically simple non-words. In other words, morphology had an inhibitory effect in lexical decision because children had a tendency to accept morphologically complex non-words as real words. This inhibitory effect is compatible with the (at least partial) morphological organization of the orthographic input lexicon. Morphological complexity had the opposite effect during reading of non-words. Morphologically complex non-words were read with fewer errors than morphologically simple non-words. This facilitator effect of morphology for reading can be explained by the fact that for efficient reading children will rely more on larger grain size units like morphemes (as compared to the slower and less efficient grapheme-phoneme based reading processes). In sum, the results of the present study provide evidence of the early organization of an orthographic lexicon that includes morphemes as representation units in Spanish. These units are used by early readers during visual word processing of new stimuli. Such morphological processing proves more useful than sub lexical grapheme-phoneme conversion processing because it deals with larger-grain units than single graphemes and phonemes.
ABSTRACT
Los modelos de léxico discuten la posibilidad de que el morfema más que la palabra completa sea la unidad de procesamiento. Se postularon dos tipos de modelos: por un lado, aquellos que proponen que el léxico contiene entradas léxicas completas para las palabras polimorfémicas; por otro, aquellos que asumen que las entradas léxicas corresponden a unidades morfológicamente descompuestas y que es necesario un mecanismo prelexical de descomposición morfológica de los estímulos. Una tercera posición (mixta), derivada de la última asume dos mecanismos de acceso, uno a través de palabra completa (para palabras frecuentes) y otro a través de unidades morfémicas (para palabras poco frecuentes y palabras nuevas), que permiten el acceso a un léxico cuyas representaciones son morfémicas. En este trabajo discutiremos el caso de una paciente con alexia fonológica cuyos resultados en tareas de lectura y decisión léxica de palabras y no palabras pueden explicarse a la luz de este modelo.