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Master Thesis

Étude clinique oculomotrice en lecture : normalisation adulte, validation sur une population alexique par AVC

Abstract : Linguistic and oculomotor abilities are required in reading but have so far been underexplored as research was focused on the cognitive aspects. Eye movement disorders in reading can occur in patients with stroke. Our goals were twofold: building normative data for adults, means and cut-offs, for reading performance and for oculomotor patterns while reading; then making a comparative study with patients with central or peripheral acquired dyslexia after stroke. Latest eye-tracking systems allow very precise oculomotor analysis. With such devices we performed data extraction on 82 controls and 13 patients with acute stroke. The results indicate that alexic patients have oculomotor specifities in reading compared to the control group. All have shown slow reading speed. Furthermore, whereas patients suffering from central alexia showed significant increase in gaze duration, the patients with hemianopic alexia revealed a high number of regressive saccades. This particular parameter seems to be more sensitive than others and may be used to reveal reading issues. Eye movement disorders in stroke patients show the importance of assessing both damage in the visual field and eye-tracking oculomotor parameters in visual search and in reading, prior to implementing a specific rehabilitation program.
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https://dumas.ccsd.cnrs.fr/dumas-01076537
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Submitted on : Monday, November 2, 2015 - 1:56:12 PM
Last modification on : Friday, December 11, 2020 - 3:50:30 AM
Long-term archiving on: : Friday, January 23, 2015 - 10:56:42 AM

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  • HAL Id : dumas-01076537, version 1

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Jean-Baptiste Boisseranc. Étude clinique oculomotrice en lecture : normalisation adulte, validation sur une population alexique par AVC. Sciences cognitives. 2014. ⟨dumas-01076537⟩

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