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Effect of different visual tasks in postural control in dyslexic children: eye movement analysis

Grant number: 16/05602-7
Support Opportunities:Scholarships abroad - Research Internship - Doctorate
Effective date (Start): September 01, 2016
Effective date (End): April 30, 2017
Field of knowledge:Health Sciences - Physical Education
Principal Investigator:José Angelo Barela
Grantee:Milena Razuk
Supervisor: Maria Pia Bucci
Host Institution: Pró-Reitoria de Pós-Graduação e Pesquisa. Universidade Cruzeiro do Sul (UNICSUL). São Paulo , SP, Brazil
Research place: Université Paris Diderot - Paris 7, France  
Associated to the scholarship:13/25653-7 - Multisensory reweighting in children with dyslexia: behavior and mechanisms, BP.DR


Dyslexic children, in addition to having difficulty in reading and writing, also have poor postural control performance. Recent studies suggest that dyslexic children show poor oculomotor performance that might affect behavioral performance. The goal of this study will investigate the effect of eye movement in different visual tasks in postural control in dyslexic children. Twenty dyslexic children will be compared with twenty non-dyslexic of similar age. All children will be underwent ophthamologic and optometric evaluation. Eye movements will be recorded by a video-oculography system (EyeBrain® T2) and postural stability will be recorded with a platform (TechnoConcept®) while the child will make visual tasks: fixations, silent reading of a text, and Landolt reading. Center of pressure (CoP) will be used to examine postural control performance (variability and sway magnitude). Reading performance will be assessed by counting the number of words read during the postural task. Finally, eye movement will be assessed by obtaining the number of fixations, number of saccades, duration and peak velocity of each saccades. (AU)

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Scientific publications (4)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
RAZUK, MILENA; BARELA, JOSE ANGELO; PEYRE, HUGO; GERARD, CHRISTOPHE LOIC; BUCCI, MARIA PIA. Eye movements and postural control in dyslexic children performing different visual tasks. PLoS One, v. 13, n. 5, . (16/05602-7, 15/26637-0, 13/25653-7)
RAZUK, MILENA; BARELA, JOSE ANGELO; PEYRE, HUGO; GERARD, CHRISTOPHE LOIC; BUCCI, MARIA PIA. Eye movement and postural sway in dyslexic children during sitting and standing. Neuroscience Letters, v. 686, p. 53-58, . (16/05602-7)
RAZUK, MILENA; LUKASOVA, KATERINA; BUCCI, MARIA PIA; BARELA, JOSE A.. Dyslexic children need more robust information to resolve conflicting sensory situations. DYSLEXIA, v. 26, n. 1, p. 52-66, . (13/25653-7, 16/05602-7)
RAZUK, MILENA; PERRIN-FIEVEZ, FAUSTINE; GERARD, CHRISTOPHE LOIC; PEYRE, HUGO; BARELA, JOSE ANGELO; BUCCI, MARIA PIA. Effect of colored filters on reading capabilities in dyslexic children. RESEARCH IN DEVELOPMENTAL DISABILITIES, v. 83, p. 1-7, . (16/05602-7, 13/25653-7)

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