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1.
Res Dev Disabil ; 153: 104813, 2024 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-39163725

RESUMEN

Developmental dyslexia is characterized by difficulties in learning to read, affecting cognition and causing failure at school. Interventions for children with developmental dyslexia have focused on improving linguistic capabilities (phonics, orthographic and morphological instructions), but developmental dyslexia is accompanied by a wide variety of sensorimotor impairments. The goal of this study was to examine the effects of a proprioceptive intervention on reading performance and eye movement in children with developmental dyslexia. Nineteen children diagnosed with developmental dyslexia were randomly assigned to a regular Speech Therapy (ST) or to a Proprioceptive and Speech Intervention (PSI), in which they received both the usual speech therapy and a proprioceptive intervention aimed to correct their sensorimotor impairments (prism glasses, oral neurostimulation, insoles and breathing instructions). Silent reading performance and eye movements were measured pre- and post-intervention (after nine months). In the PSI group, reading performance improved and eye movements were smoother and faster, reaching values similar to those of children with typical reading performance. The recognition of written words also improved, indicating better lexical access. These results show that PSI might constitute a valuable tool for reading improvement children with developmental dyslexia.


Asunto(s)
Dislexia , Movimientos Oculares , Tecnología de Seguimiento Ocular , Lectura , Humanos , Dislexia/rehabilitación , Dislexia/fisiopatología , Dislexia/terapia , Niño , Masculino , Femenino , Movimientos Oculares/fisiología , Propiocepción/fisiología , Auxiliares Sensoriales
2.
Front Neuroinform ; 15: 535542, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-34040510

RESUMEN

The Affect-tag solution measures physiological signals to deliver indicators derived from cognitive science. To provide the most accurate and effective results, a database of electrodermal activity (EDA) signals acquired using the Affect-tag A1 band was created. An experimental paradigm was designed to measure action-taking, autonomic regulation, cognitive load (CL), emotions, and stress, affects, and social stress. The Affect-tag emotional power (EP), emotional density (ED), and CL affective and cognitive indicators were refined based on the physiological responses of 48 participants during these tasks. Statistical significance was obtained for all indicators in tasks they were designed to measure, resulting in a total accuracy score of 89% for the combined indicators. Data obtained during this study will be further analyzed to define emotional and affective states.

3.
J Exp Child Psychol ; 139: 1-17, 2015 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-26057197

RESUMEN

We assessed third and fifth graders' processing of parafoveal word information using a lexical decision task. On each trial, a preview word was first briefly presented parafoveally in the left or right visual field before a target word was displayed. Preview and target words could be identical, share the first three letters, or have no letters in common. Experiment 1 showed that developing readers receive the same word recognition benefit from parafoveal previews as expert readers. The impact of a change of case between preview and target in Experiment 2 showed that in all groups of readers, the preview benefit resulted from the identification of letters at an abstract level rather than from facilitation at a purely visual level. Fifth graders identified more letters from the preview than third graders. The results are interpreted within the framework of the interactive activation model. In particular, we suggest that although the processing of parafoveal information led to letter identification in developing readers, the processes involved may differ from those in expert readers. Although expert readers' processing of parafoveal information led to activation at the level of lexical representations, no such activation was observed in developing readers.


Asunto(s)
Reconocimiento Visual de Modelos/fisiología , Lectura , Campos Visuales/fisiología , Niño , Toma de Decisiones/fisiología , Femenino , Humanos , Masculino , Estimulación Luminosa , Tiempo de Reacción/fisiología
4.
Brain Cogn ; 78(2): 123-32, 2012 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-22204877

RESUMEN

This study aimed at examining sensitivity to lateral linguistic and nonlinguistic information in third and fifth grade readers. A word identification task with a threshold was used, and targets were displayed foveally with or without distractors. Sensitivity to lateral information was inferred from the deterioration of the rate of correct word identification when displayed with distractors. Results show that the two reader groups were sensitive to both right and left lateral information. The area of sensitivity to this information was more extended for the identification of easy words than difficult words. Examination of the detrimental effect of distractors suggests that in both third and fifth graders, the impact of lateral information on foveal processing is the result of a general distraction effect, but also of linguistic processing whose nature remains to be clarified.


Asunto(s)
Atención , Psicolingüística , Lectura , Percepción Visual , Niño , Francia , Humanos , Estimulación Luminosa , Reconocimiento en Psicología
5.
Acta Psychol (Amst) ; 137(3): 330-4, 2011 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-21514548

RESUMEN

In the present study, we investigate whether reading an action-word can influence subsequent visual perception of biological motion. The participant's task was to perceptually judge whether a human action identifiable in the biological motion of a point-light display embedded in a high density mask was present or not in the visual sequence, which lasted for 633 ms on average. Prior to the judgement task, participants were exposed to an abstract verb or an action verb for 500 ms, which was related to the human action according to a congruent or incongruent semantic relation. Data analysis showed that correct judgements were not affected by action verbs, whereas a facilitation effect on response time (49 ms on average) was observed when a congruent action verb primed the judgement of biological movements. In relation with the existing literature, this finding suggests that the perception, the planning and the linguistic coding of motor action are subtended by common motor representations.


Asunto(s)
Lenguaje , Percepción de Movimiento/fisiología , Lectura , Percepción Visual/fisiología , Adolescente , Adulto , Femenino , Humanos , Juicio/fisiología , Masculino , Persona de Mediana Edad , Estimulación Luminosa , Desempeño Psicomotor/fisiología , Tiempo de Reacción/fisiología
6.
Psychon Bull Rev ; 14(4): 762-9, 2007 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-17972746

RESUMEN

French readers' eye movements were monitored as they read a passage of text. Initial global analyses of word frequency, accounting for the majority of fixations in the text, revealed a good fit between the observed data and the simulated data from the E-Z Reader 7 model of eye movement control. However, the model did not perform as well on simulations of contextual predictability effects. A subset of 20 controlled words from the passage were used to examine the combined effects of frequency and predictability. Results from the observed data showed main effects of frequency and predictability but no interaction. With certain modifications, the E-Z Reader 7 model was able to adequately simulate the pattern of data. Although the E-Z Reader model successfully accounted for the present data, we believe that further modifications will be necessary in order to better account for data in the literature.


Asunto(s)
Lenguaje , Periodicidad , Lectura , Vocabulario , Adulto , Movimientos Oculares , Femenino , Fijación Ocular , Francia , Humanos , Masculino , Factores de Tiempo
7.
Brain Lang ; 90(1-3): 299-310, 2004.
Artículo en Inglés | MEDLINE | ID: mdl-15172547

RESUMEN

This experiment employed the boundary paradigm during sentence reading to explore the nature of early phonological coding in reading. Fixation durations were shorter when the parafoveal preview was the correct word than when it was a spelling control pseudoword. In contrast, there was no significant difference between correct word and pseudohomophone previews. These results suggest that the phonological codes are assembled before word fixation and are used for lexical access. Moreover, there was evidence that orthographic codes influence the activation of word meaning. We found that fixation durations were shorter for orthographically similar parafoveal previews, and this orthographic priming effect is limited to pseudohomophones. Thus, it seems that both the orthographic and the phonological similarities of the parafoveal preview to the target play a part in the facilitative effects of the preview.


Asunto(s)
Fijación Ocular , Fonética , Lectura , Movimientos Sacádicos , Fóvea Central , Humanos , Tiempo de Reacción
8.
Brain Lang ; 81(1-3): 509-16, 2002.
Artículo en Inglés | MEDLINE | ID: mdl-12081418

RESUMEN

This experiment explored the role of phonology in the activation of word meanings when homophonic and nonhomophonic errors were embedded in meaningful texts. The resulting data supported the position that phonological codes are activated very early in eye fixation and are compatible with the verification model of Van Orden (1987).


Asunto(s)
Movimientos Oculares/fisiología , Fonética , Lectura , Fijación Ocular , Humanos , Factores de Tiempo
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