Déficits de la production écrite dans les aphasies primaires progressives
(2019) Revue de Neuropsychologie : Neurosciences Cognitives et Cliniques — Vol. 11, n° 3, p. 176-187 (2019)
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- (en) [Written language production deficits in primary progressive aphasia] Any cognitive process underlying spelling could be selectively affected in neurodegenerative disorders just as they are in patients with focal brain damage such as vascular or traumatic lesions. Particularly, recent studies addressed written spelling deficits in primary progressive aphasia patients (thereafter, PPA) in which language is the earliest affected and, for a long time, the most impaired aspect of cognitive functioning. Thanks to the progressive and selective nature of the language deficits presented by these patients, the searchers have the opportunity to specify their knowledge about cognitive processes and representations engaged in written production and about their neural substrates. As PPA affects somewhat distinct areas of brain that are not typically affected by vascular lesions, they also provide the opportunity to look for unique patterns, not seen after unilateral focal lesion. Nowadays, the patterns of dysgraphia previously described after focal vascular lesions are identified in neurodegenerative cases of PPA, their neuronal substrates are becoming to be specified and their cognitive interpretations discussed. In-depth written spelling performance assessments of these selective neurodegenerative disorders outline the earliness of spelling deficits or maybe even their predictive value in the probable development of the different subtypes of PPA.
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de Partz de Courtray, M.-P. (2019). Déficits de la production écrite dans les aphasies primaires progressives. Revue de Neuropsychologie : Neurosciences Cognitives et Cliniques, 11(3), 176-187. https://doi.org/10.1684/nrp.2019.0515 (Original work published 2019)