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Beyond reading modulation: Temporo-parietal tdcs alters visuo-spatial attention and motion perception in dyslexia
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Lazzaro, Giulia; Bertoni, Sara (orcid:0000-0002-0985-0373); Menghini, Deny; Costanzo, Floriana; Franceschini, Sandro; Varuzza, Cristiana; Ronconi, Luca; Battisti, Andrea; Gori, Simone (orcid:0000-0002-6693-6122); Facoetti, Andrea; Vicari, Stefano. - 2021
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Abstract:
Dyslexia is a neurodevelopmental disorder with an atypical activation of posterior left-hemisphere brain reading networks (i.e., temporo-occipital and temporo-parietal regions) and multiple neuropsychological deficits. Transcranial direct current stimulation (tDCS) is a tool for manipulating neural activity and, in turn, neurocognitive processes. While studies have demonstrated the significant effects of tDCS on reading, neurocognitive changes beyond reading modulation have been poorly investigated. The present study aimed at examining whether tDCS on temporo-parietal regions affected not only reading, but also phonological skills, visuo-spatial working memory, visuo-spatial attention, and motion perception in a polarity-dependent way. In a within-subjects design, ten children and adolescents with dyslexia performed reading and neuropsychological tasks after 20 min of exposure to Left Anodal/Right Cathodal (LA/RC) and Right Anodal/Left Cathodal (RA/LC) tDCS. LA/RC tDCS compared to RA/LC tDCS improved text accuracy, word recognition speed, motion perception, and modified attentional focusing in our group of children and adolescents with dyslexia. Changes in text reading accuracy and word recognition speed—after LA/RC tDCS compared to RA/LC—were related to changes in motion perception and in visuo-spatial working memory, respectively. Our findings demonstrated that reading and domain-general neurocognitive functions in a group of children and adolescents with dyslexia change following tDCS and that they are polarity-dependent.
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Keyword:
Attention; brain reading networks; children and adolescents; cortical excitability; magnocellular-dorsal pathway; neural noise; neuromodulation; Settore M-PSI/01 - Psicologia Generale
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URL: https://doi.org/10.3390/brainsci11020263 http://hdl.handle.net/10446/205936
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Action Video Games Enhance Attentional Control and Phonological Decoding in Children with Developmental Dyslexia
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In: Brain Sci (2021)
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Beyond Reading Modulation: Temporo-Parietal tDCS Alters Visuo-Spatial Attention and Motion Perception in Dyslexia
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In: Brain Sci (2021)
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Action video games enhance attentional control and phonological decoding in children with developmental dyslexia
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The effects of biliteracy in the narrative competence of Early Bilinguals: a macrostructure and a microstructure analysis
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The magnocellular-dorsal pathway dysfunction in developmental dyslexia: Case-control, longitudinal and intervention studies
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A different vision of dyslexia: Local precedence on global perception
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Action video games improve reading abilities and visual-to-auditory attentional shifting in English-speaking children with dyslexia
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Action video games improve reading and cross-modal attentional shifting as well as phonological skills in English-speaking children with dyslexia
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Action video games improve reading abilities and visual-to-auditory attentional shifting in English-speaking children with dyslexia
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A different vision of dyslexia: Local precedence on global perception
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Dyslexia prevention by action video game training: behavioural and neurophysiological evidence
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Gori, Simone (orcid:0000-0002-6693-6122); Bertoni, Sara (orcid:0000-0002-0985-0373); Sali, Maria. - : Association for Research in Vision and Ophthalmology, 2016. : country:US, 2016
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