Alexia for Braille following bilateral occipital stroke in an early blind woman
Abstract
Recent functional imaging and neurophysiologic studies indicate that the occipital cortex may play a role in Braille reading in congenitally and early blind subjects. We report on a woman blind from birth who sustained bilateral occipital damage following an ischemic stroke. Prior to the stroke, the patient was a proficient Braille reader. Following the stroke, she was no longer able to read Braille yet her somatosensory perception appeared otherwise to be unchanged. This case supports the emerging evidence for the recruitment of striate and prestriate cortex for Braille reading in early blind subjects.
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Braille reading is impaired following lesions to occipital areas.
“Braille reading has also been found to be impaired following lesions to occipital areas (Hamilton et al., 2000).”
From Designing sensory-substitution devices: Principles, pitfalls and potential1 (2016) · cites this paper as Hamilton et al., 2000
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- Authors
- Hamilton, R., Keenan, J. P., Catala, M., & Pascual-Leone, A.
- Affiliations
- Beth Israel Deaconess Medical Center (US)
- Universitat de València (ES)
- Venue
- Neuroreport
- Published
- 2000-02
- Volume
- 11
- Issue
- 2
- Pages
- 237-240
- ISSN
- 0959-4965 (ISSN-L)
- OpenAlex
- W2041733645
- Cited by
- 165
- References
- 7
- Citations by year
- 2026: 1 · 2025: 2 · 2024: 4 · 2023: 3 · 2022: 3 · 2021: 8 · 2020: 2 · 2019: 6 · 2018: 4 · 2017: 3 · 2016: 3 · 2015: 10 · 2014: 10 · 2013: 7 · 2012: 9
- FWCI
- 2.84
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Neuroreport (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Eye Institute (R01 EY12091, R01EY012091)
- Topics
- Life Sciences › Neuroscience › Cognitive Neuroscience › Tactile and Sensory Interactions
- Life Sciences › Neuroscience › Cognitive Neuroscience › Visual perception and processing mechanisms
- Social Sciences › Psychology › Developmental and Educational Psychology › Reading and Literacy Development
- Keywords
- Braille reading, alexia, early blindness, congenital blindness, ischemic stroke, occipital cortex, primary visual cortex, prestriate cortex, somatosensory perception, cortical recruitment
- MeSH terms
- Blindness, Cerebral Infarction, Brain Ischemia, Diabetes Mellitus, Type 2, Dyslexia, Acquired, Female, Humans, Magnetic Resonance Imaging, Middle Aged, Occipital Lobe, Sensory Aids, Touch, Hypertrophy, Left Ventricular
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