The Role of Visual Factors in Dyslexia
What are the causes of dyslexia? Decades of research reflect a determined search for a single cause where a common assumption is that dyslexia is a consequence of problems with converting phonological information into lexical codes. But reading is a highly complex activity requiring many well-functi...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Ubiquity Press
2023-06-01
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| Series: | Journal of Cognition |
| Subjects: | |
| Online Access: | https://account.journalofcognition.org/index.php/up-j-jc/article/view/287 |
| _version_ | 1797777829856804864 |
|---|---|
| author | Árni Kristjánsson Heida Maria Sigurdardottir |
| author_facet | Árni Kristjánsson Heida Maria Sigurdardottir |
| author_sort | Árni Kristjánsson |
| collection | DOAJ |
| description | What are the causes of dyslexia? Decades of research reflect a determined search for a single cause where a common assumption is that dyslexia is a consequence of problems with converting phonological information into lexical codes. But reading is a highly complex activity requiring many well-functioning mechanisms, and several different visual problems have been documented in dyslexic readers. We critically review evidence from various sources for the role of visual factors in dyslexia, from magnocellular dysfunction through accounts based on abnormal eye movements and attentional processing, to recent proposals that problems with high-level vision contribute to dyslexia. We believe that the role of visual problems in dyslexia has been underestimated in the literature, to the detriment of the understanding and treatment of the disorder. We propose that rather than focusing on a single core cause, the role of visual factors in dyslexia fits well with risk and resilience models that assume that several variables interact throughout prenatal and postnatal development to either promote or hinder efficient reading. |
| first_indexed | 2024-03-12T23:10:09Z |
| format | Article |
| id | doaj.art-fc2dd174d07e416c968185f03df8b64a |
| institution | Directory Open Access Journal |
| issn | 2514-4820 |
| language | English |
| last_indexed | 2024-03-12T23:10:09Z |
| publishDate | 2023-06-01 |
| publisher | Ubiquity Press |
| record_format | Article |
| series | Journal of Cognition |
| spelling | doaj.art-fc2dd174d07e416c968185f03df8b64a2023-07-18T08:22:22ZengUbiquity PressJournal of Cognition2514-48202023-06-0161313110.5334/joc.287286The Role of Visual Factors in DyslexiaÁrni Kristjánsson0https://orcid.org/0000-0003-4168-4886Heida Maria Sigurdardottir1https://orcid.org/0000-0002-4248-0992Icelandic Vision Lab, Department of Psychology, University of IcelandIcelandic Vision Lab, Department of Psychology, University of IcelandWhat are the causes of dyslexia? Decades of research reflect a determined search for a single cause where a common assumption is that dyslexia is a consequence of problems with converting phonological information into lexical codes. But reading is a highly complex activity requiring many well-functioning mechanisms, and several different visual problems have been documented in dyslexic readers. We critically review evidence from various sources for the role of visual factors in dyslexia, from magnocellular dysfunction through accounts based on abnormal eye movements and attentional processing, to recent proposals that problems with high-level vision contribute to dyslexia. We believe that the role of visual problems in dyslexia has been underestimated in the literature, to the detriment of the understanding and treatment of the disorder. We propose that rather than focusing on a single core cause, the role of visual factors in dyslexia fits well with risk and resilience models that assume that several variables interact throughout prenatal and postnatal development to either promote or hinder efficient reading.https://account.journalofcognition.org/index.php/up-j-jc/article/view/287dyslexiareadingdevelopmental disordersvisual deficitsvisual perception |
| spellingShingle | Árni Kristjánsson Heida Maria Sigurdardottir The Role of Visual Factors in Dyslexia Journal of Cognition dyslexia reading developmental disorders visual deficits visual perception |
| title | The Role of Visual Factors in Dyslexia |
| title_full | The Role of Visual Factors in Dyslexia |
| title_fullStr | The Role of Visual Factors in Dyslexia |
| title_full_unstemmed | The Role of Visual Factors in Dyslexia |
| title_short | The Role of Visual Factors in Dyslexia |
| title_sort | role of visual factors in dyslexia |
| topic | dyslexia reading developmental disorders visual deficits visual perception |
| url | https://account.journalofcognition.org/index.php/up-j-jc/article/view/287 |
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