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Iranian Journal of Psychiatry، جلد ۱۸، شماره ۴، صفحات ۵۰۳-۵۰۹
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| عنوان فارسی |
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| چکیده فارسی مقاله |
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| کلیدواژه‌های فارسی مقاله |
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| عنوان انگلیسی |
An Overview on Electrophysiological and Neuroimaging Findings in Dyslexia |
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| چکیده انگلیسی مقاله |
Objective: Dyslexia is a prevalent neurodevelopmental condition that is characterized by inaccurate and slow word recognition. This article reviews neural correlates of dyslexia from both electrophysiological and neuroimaging studies.
Method: In this brief review, we provide electrophysiological and neuroimaging evidence from electroencephalogram (EEG) and magnetic resonance imaging (MRI) studies in dyslexia to understand functional and structural brain changes in this condition.
Results: In both electrophysiological and neuroimaging studies, the most frequently reported functional impairments in dyslexia include aberrant activation of the left hemisphere occipito-temporal cortex (OTC), temporo-parietal cortex (TPC), inferior frontal gyrus (IFG), and cerebellar areas. EEG studies have mostly highlighted the important role of lower frequency bands in dyslexia, especially theta waves. Furthermore, neuroimaging studies have suggested that dyslexia is related to functional and structural impairments in the left hemisphere regions associated with reading and language, including reduced grey matter volume in the left TPC, decreased white matter connectivity between reading networks, and hypo-activation of the left OTC and TPC. In addition, neural evidence from pre-reading children and infants at risk for dyslexia show that there are abnormalities in the dyslexic brain before learning to read begins.
Conclusion: Advances in comprehending the neural correlates of dyslexia could bring closer translation from basic to clinical neuroscience and effective rehabilitation for individuals who struggle to read. However, neuroscience still has great potential for clinical translation that requires further research. |
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| کلیدواژه‌های انگلیسی مقاله |
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| نویسندگان مقاله |
| Ronald Hernández-Vásquez
Universidad Privada Norbert Wiener, Lima, Perú
| Ulises Córdova García
Universidad César Vallejo, Lima, Perú
| Ana Maritza Boy Barreto
Universidad César Vallejo, Lima, Perú
| Milagritos Leonor Rodriguez Rojas
Universidad César Vallejo, Lima, Perú.
| Jacqueline Ponce-Meza
Universidad Privada del Norte, Lima, Perú
| Miguel Saavedra-López
Universidad Continental, Cusco, Perú
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| نشانی اینترنتی |
https://ijps.tums.ac.ir/index.php/ijps/article/view/3603 |
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