A Crossed Pure Agraphia by Graphemic Buffer Impairment following Right Orbito-Frontal Glioma Resection

[EN] Pure agraphias are caused by graphemic buffer damage. The graphemic buffer stores graphemic representations that handle the transition from spelling lexicon to writing or oral spellings. The authors report a case of a crossed pure agraphia, following the post-surgical removal of a right frontal...

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Autores: Arroyo Anlló, Eva María, Pluchon, Claudette, Bouyer, Coline, Baudiffier, Vanessa, Stal, Veronique, Du Boisgueheneuc, Foucaud, Wager, Michel, Gil, Roger
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:España
Institución:Universidad de Salamanca (USAL)
Repositorio:GREDOS. Repositorio Institucional de la Universidad de Salamanca
OAI Identifier:oai:gredos.usal.es:10366/154873
Acceso en línea:http://hdl.handle.net/10366/154873
Access Level:acceso abierto
Palabra clave:Tumour
Glioma
Frontal
Right hemisphere
Language
Graphemic buffer
Neuropsychology
3205.07 Neurología
neuropsicología
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repository_id_str
spelling A Crossed Pure Agraphia by Graphemic Buffer Impairment following Right Orbito-Frontal Glioma ResectionArroyo Anlló, Eva MaríaPluchon, ClaudetteBouyer, ColineBaudiffier, VanessaStal, VeroniqueDu Boisgueheneuc, FoucaudWager, MichelGil, RogerTumourGliomaFrontalRight hemisphereLanguageGraphemic bufferNeuropsychology3205.07 Neurologíaneuropsicología[EN] Pure agraphias are caused by graphemic buffer damage. The graphemic buffer stores graphemic representations that handle the transition from spelling lexicon to writing or oral spellings. The authors report a case of a crossed pure agraphia, following the post-surgical removal of a right frontal low-grade glioma in a right-handed French patient. He presented a pure agraphia displaying the features of a graphemic buffer impairment. Our patient only made spelling errors, whereas repetition and other oral language abilities remained perfect. We found a greater number of errors for longer stimuli, increased errors for the medially located graphemes, and agraphia for both words and non-words and error types, essentially consisting of omissions, substitutions, and letter transpositions. We also observed no significant effect of word frequency on spelling errors, but word length affected the rate of errors. The particularity of this case was linked to right frontal subcortical injuries in a right-handed subject. To our knowledge, it is the first report of a crossed pure agraphia caused by graphemic buffer impairment. Further studies are needed in order to analyse the role of subcortical structures, particularly the caudate nucleus in the graphemic buffer during writing tasks, as well as the participation of the non-dominant hemisphere in writing language.202420242023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplicatio/pdfhttp://hdl.handle.net/10366/154873reponame:GREDOS. Repositorio Institucional de la Universidad de Salamancainstname:Universidad de Salamanca (USAL)Attribution-NoDerivatives 4.0 Internacionalhttp://creativecommons.org/licenses/by-nd/4.0/info:eu-repo/semantics/openAccessoai:gredos.usal.es:10366/1548732026-06-07T06:28:51Z
dc.title.none.fl_str_mv A Crossed Pure Agraphia by Graphemic Buffer Impairment following Right Orbito-Frontal Glioma Resection
title A Crossed Pure Agraphia by Graphemic Buffer Impairment following Right Orbito-Frontal Glioma Resection
spellingShingle A Crossed Pure Agraphia by Graphemic Buffer Impairment following Right Orbito-Frontal Glioma Resection
Arroyo Anlló, Eva María
Tumour
Glioma
Frontal
Right hemisphere
Language
Graphemic buffer
Neuropsychology
3205.07 Neurología
neuropsicología
title_short A Crossed Pure Agraphia by Graphemic Buffer Impairment following Right Orbito-Frontal Glioma Resection
title_full A Crossed Pure Agraphia by Graphemic Buffer Impairment following Right Orbito-Frontal Glioma Resection
title_fullStr A Crossed Pure Agraphia by Graphemic Buffer Impairment following Right Orbito-Frontal Glioma Resection
title_full_unstemmed A Crossed Pure Agraphia by Graphemic Buffer Impairment following Right Orbito-Frontal Glioma Resection
title_sort A Crossed Pure Agraphia by Graphemic Buffer Impairment following Right Orbito-Frontal Glioma Resection
dc.creator.none.fl_str_mv Arroyo Anlló, Eva María
Pluchon, Claudette
Bouyer, Coline
Baudiffier, Vanessa
Stal, Veronique
Du Boisgueheneuc, Foucaud
Wager, Michel
Gil, Roger
author Arroyo Anlló, Eva María
author_facet Arroyo Anlló, Eva María
Pluchon, Claudette
Bouyer, Coline
Baudiffier, Vanessa
Stal, Veronique
Du Boisgueheneuc, Foucaud
Wager, Michel
Gil, Roger
author_role author
author2 Pluchon, Claudette
Bouyer, Coline
Baudiffier, Vanessa
Stal, Veronique
Du Boisgueheneuc, Foucaud
Wager, Michel
Gil, Roger
author2_role author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Tumour
Glioma
Frontal
Right hemisphere
Language
Graphemic buffer
Neuropsychology
3205.07 Neurología
neuropsicología
topic Tumour
Glioma
Frontal
Right hemisphere
Language
Graphemic buffer
Neuropsychology
3205.07 Neurología
neuropsicología
description [EN] Pure agraphias are caused by graphemic buffer damage. The graphemic buffer stores graphemic representations that handle the transition from spelling lexicon to writing or oral spellings. The authors report a case of a crossed pure agraphia, following the post-surgical removal of a right frontal low-grade glioma in a right-handed French patient. He presented a pure agraphia displaying the features of a graphemic buffer impairment. Our patient only made spelling errors, whereas repetition and other oral language abilities remained perfect. We found a greater number of errors for longer stimuli, increased errors for the medially located graphemes, and agraphia for both words and non-words and error types, essentially consisting of omissions, substitutions, and letter transpositions. We also observed no significant effect of word frequency on spelling errors, but word length affected the rate of errors. The particularity of this case was linked to right frontal subcortical injuries in a right-handed subject. To our knowledge, it is the first report of a crossed pure agraphia caused by graphemic buffer impairment. Further studies are needed in order to analyse the role of subcortical structures, particularly the caudate nucleus in the graphemic buffer during writing tasks, as well as the participation of the non-dominant hemisphere in writing language.
publishDate 2023
dc.date.none.fl_str_mv 2023
2024
2024
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10366/154873
url http://hdl.handle.net/10366/154873
dc.rights.none.fl_str_mv Attribution-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NoDerivatives 4.0 Internacional
http://creativecommons.org/licenses/by-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv applicatio/pdf
dc.source.none.fl_str_mv reponame:GREDOS. Repositorio Institucional de la Universidad de Salamanca
instname:Universidad de Salamanca (USAL)
instname_str Universidad de Salamanca (USAL)
reponame_str GREDOS. Repositorio Institucional de la Universidad de Salamanca
collection GREDOS. Repositorio Institucional de la Universidad de Salamanca
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,301603

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