Aphasic dyslexia of Braille in a congenitally blind man

Birchmeier, Annette K.

doi:10.1016/0028-3932(85)90102-2

Cited by 13 publications

(3 citation statements)

References 27 publications

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“…Moreover, it may also be that the lack of visual–spatial input in the blind results in less interhemispheric competition and, finally, a bilateral representation of language. Nevertheless, auditory–spatial functions are represented in the blind subject's parietal–occipital cortex as well (Weeks et al ., 2000), and left hemispheric lesions result in aphasia in the blind as in the sighted (Birchmeier, 1985; Signoret et al ., 1987). It might be speculated that the right hemisphere may exert a supportive influence without being sufficient for speech comprehension.…”

Section: Discussionmentioning

confidence: 99%

Speech processing activates visual cortex in congenitally blind humans

Röder

Stock

Bien

et al. 2002

Eur J of Neuroscience

332

224

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Neurophysiological recordings and neuroimaging data in blind and deaf animals and humans suggest that perceptual functions may be organized differently after sensory deprivation. It has been argued that neural plasticity contributes to compensatory performance in blind humans, such as faster speech processing. The present study employed functional magnetic resonance imaging (fMRI) to map language-related brain activity in congenitally blind adults. Participants listened to sentences, with either an easy or a more difficult syntactic structure, which were either semantically meaningful or meaningless. Results show that blind adults not only activate classical left-hemispheric perisylvian language areas during speech comprehension, as did a group of sighted adults, but that they additionally display an activation in the homologueous right-hemispheric structures and in extrastriate and striate cortex. Both the perisylvian and occipital activity varied as a function of syntactic difficulty and semantic content. The results demonstrate that the cerebral organization of complex cognitive systems such as the language system is significantly shaped by the input available.

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Section: Discussionmentioning

confidence: 99%

Speech processing activates visual cortex in congenitally blind humans

Röder

Stock

Bien

et al. 2002

Eur J of Neuroscience

332

224

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“…Birchmeier [18] and Parker [19], in their works, emphasized the complexities of evaluating language skills in blind people, underscoring the visual nature of typical aphasia therapy and the imperative for non-visual adaptations for those with sensory impairments.…”

Section: Discussionmentioning

confidence: 99%

“…Other works studied the different issues when assessing blind patients with aphasia. Birchmeier [18] reported a case of severe expressive aphasia (Wernicke's aphasia) in a congenitally blind 82-year-old man following a stroke. It affected his left hemisphere with impairments in speech production, naming, repetition, and writing, as well as alexia and dyslexia when reading Braille.…”

Section: Introductionmentioning

confidence: 99%

Challenges in Assessing Aphasia in Congenital Blind Patients: A Case Report

Nicoletta,

Riganello,

Lucca

et al. 2023

Reports

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This case report focuses on assessing aphasia in a congenitally blind patient with an ischemic lesion using the Aachener Aphasia Test. The method involved adapting existing assessment tools to the patient, integrating Braille as an accessible technology, and incorporating the patient’s family for emotional support and for the identification of patient-specific communication strategies. The assessment revealed patient strengths in areas such as articulation, prosody, and repetition skills, but also exposed challenges in semantic and syntactic structures. However, the unavailability to assess and score naming and comprehension limited a full assessment of the patient’s language abilities. The findings underscore the need for flexible, tailored assessment strategies and collaborative approaches involving healthcare professionals and families. Moreover, it suggests a considerable research gap and a need for standard tools to assess blind patients with aphasia comprehensively. This case report contributes to the limited knowledge of assessing aphasia in blind individuals and calls for further research in this area to refine and expand the available tools and strategies.

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Diagnosis

Larner

2011

Dementia in Clinical Practice: A Neurological Perspective

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Aphasic dyslexia of Braille in a congenitally blind man

Cited by 13 publications

References 27 publications

Speech processing activates visual cortex in congenitally blind humans

Speech processing activates visual cortex in congenitally blind humans

Challenges in Assessing Aphasia in Congenital Blind Patients: A Case Report

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