Publicación: Behavioral and electrophysiological correlates of interactions between grouping principles in touch: Evidence from psychophysical indirect tasks
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2019-06-01
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info:eu-repo/semantics/openAccess
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Elsevier
Resumen
In two experiments we investigated the behavioral and brain correlates of the interactions between spatial-proximity and texture-similarity grouping principles in touch. We designed two adaptations of the repetition discrimination task (RDT) previously used in vision. This task provides an indirect measure of grouping that does not require explicit attention to the grouping process. In Experiment 1, participants were presented with a row of elements alternating in texture except for one pair in which the same texture was repeated. The participants had to decide whether the repeated texture stimuli (similarity grouping) were smooth or rough, while the spatial proximity between targets and distractors was varied either to facilitate or hinder the response. In Experiment 2, participants indicated which cohort (proximity grouping) contained more elements, while texture-similarity within and between cohorts was modified. The results indicated additive effects of grouping cues in which proximity dominated the perceptual grouping process when the two principles acted together. In addition, the independent component analysis (ICA) performed on electrophysiological data revealed the implication of a widespread network of sensorimotor, prefrontal, parietal and occipital brain areas in both experiments.
Descripción
This is an Accepted Manuscript of an article published by Elsevier in "Neuropsychologia, 129, 21-36", available at: https://doi.org/10.1016/j.neuropsychologia.2019.03.005
Este es el manuscrito aceptado del artículo publicado por Elsevier en "Neuropsychologia, 129, 21-36", disponible en línea: https://doi.org/10.1016/j.neuropsychologia.2019.03.005
Este es el manuscrito aceptado del artículo publicado por Elsevier en "Neuropsychologia, 129, 21-36", disponible en línea: https://doi.org/10.1016/j.neuropsychologia.2019.03.005
Categorías UNESCO
Palabras clave
Perceptual organization, proximity, similarity, grouping, touch
Citación
Prieto, A., Mayas, J., & Ballesteros, S. (2019). Behavioral and electrophysiological correlates of interactions between grouping principles in touch: Evidence from psychophysical indirect tasks. Neuropsychologia, 129, 21-36.
Centro
Facultad de Psicología
Departamento
Psicología Básica I