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Is visuospatial attention different for people suffering from dyslexia? : An EEG study using Lateralized Power Spectra

Verwoert, T. (2016) Is visuospatial attention different for people suffering from dyslexia? : An EEG study using Lateralized Power Spectra.

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Abstract:This study measured the electrocephalogram (EEG) while dyslectics and controls performed an endogenous cueing task to check for differences in visuospatial attention. A neuropsychological test battery focusing on dyslexia, and different aspects of attention was carried out as a separate measure. Event related lateralizations (ERLs), the lateralized power spectra (LPS) and the lateralized power spectra, computed on event related potentials (LPS-ERP) were analyzed and checked for group differences. The LPS analysis revealed mostly increased ipsilateral theta and alpha power on occipital and parietal sites in controls as compared to dyslectics, which might be related to a dysfunction in the dorsal/magnocellular pathway of dyslectics. The difference in lateralization between dyslectics and controls on posterior parietal sites may be linked to reversing and rotating letters or words, a common issue reported in dyslectics.
Item Type:Essay (Master)
Faculty:BMS: Behavioural, Management and Social Sciences
Subject:77 psychology
Programme:Psychology MSc (66604)
Link to this item:http://purl.utwente.nl/essays/70355
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