DOI: 10.17488/rmib.40.2.5
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Activación Hemisférica Cerebral en Adultos Jóvenes Mientras Ejecutan Tareas Ortográficas Utilizando fMRI

Abstract: El dominio del lenguaje escrito se basa en la consolidación de representaciones neurales complejas de los patrones ortográficos de las palabras. En virtud de explorar las características presentes en procesos neurales relacionados con la especialización ortográfica, se estudiaron con métodos de imagen por resonancia magnética funcional los niveles neurales de activación intrahemisférica de 27 jóvenes con alto y bajo rendimiento ortográfico mientras ejecutaban tareas ortográficas. Los resultados sugieren que, e… Show more

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(3 citation statements)
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“…Since this is not true in practice [11] , a smoothing filter is applied to the raw images to ensure that these assumptions are met. Such a pre-processing process causes a loss of spatial resolu-tion [5] . On the other hand, threshold-free methodologies [12] employ erosion and dilatation morphological operators with a set of structuring elements of various sizes to detect regions exhibiting moderate activation levels and wide spatial size.…”
Section: Some Authors Address the Problem Through Thementioning
confidence: 99%
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“…Since this is not true in practice [11] , a smoothing filter is applied to the raw images to ensure that these assumptions are met. Such a pre-processing process causes a loss of spatial resolu-tion [5] . On the other hand, threshold-free methodologies [12] employ erosion and dilatation morphological operators with a set of structuring elements of various sizes to detect regions exhibiting moderate activation levels and wide spatial size.…”
Section: Some Authors Address the Problem Through Thementioning
confidence: 99%
“…This represents the worstcase scenario in which the entire region has a minimum value. On the other hand, the mean activation level or the amplitude could also be employed, as discussed by Welvaert and Rosseel [17] and Acosta-Franco et al [5] . [21] .…”
Section: Theoretical Frameworkmentioning
confidence: 99%
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