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- Date de réalisation : 22 Juin 2012
- Durée du programme : 23 min
- Classification Dewey : Psycholinguistique, Troubles de la parole et du langage (troubles de la communication, de l'articulation ; orthophonie)
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- Catégorie : Conférences
- Niveau : niveau Licence (LMD), niveau Master (LMD)
- Disciplines : Disciplines connexes (sociolinguistique, psycholinguistique…), Psychologie clinique, neurosciences
- Collections : Perspectives neuropsycholinguistiques sur l'aphasie
- ficheLom : Voir la fiche LOM
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- Auteur(s) : KÖPKE Barbara
- producteur : Université Toulouse II-Le Mirail
- Réalisateur(s) : BASTARD Bruno
- Editeur : SCPAM Université Toulouse II-Le Mirail
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- Langue : Anglais
- Mots-clés : langage et langues (compréhension), tests diagnostiques, multilinguisme, déficit cognitif, troubles du langage, aphasie
- Conditions d’utilisation / Copyright : Tous droits réservés à l'Université Toulouse II-Le Mirail et aux auteurs.
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Perioperative language assessment in multilingual patients undergoing awake surgery / Barbara Köpke
Perioperative language assessment in multilingual patients undergoing awake surgery / Barbara Köpke. In "Perspectives neuropsycholinguistiques sur l'aphasie - NeuroPsychoLinguistic Perspectives on Aphasia", colloque international organisé par l'Unité de Recherche Interdisciplinaire Octogone de l'Université Toulouse II-Le Mirail (France). Toulouse, 21-23 juin 2012.
An
awake craniotomy is an operation performed in the same manner as
a conventional
craniotomy but
with the patient awake during the procedure. This is a preferred
technique for operations to remove lesions close to, or involving,
eloquent language cortex. Direct intraoperative electrical
stimulation mapping (ESM) allows testing patient’s motor and
language functions continuously throughout the operation. The overall
aim is to preserve the patient’s language skills (Ojemann, Ojemann,
Lettich, & Berger, 1989). This technique has been popularized for
epilepsy surgery (Ojemann, 1987) but also allows most of brain
tumours to be aggressively resected without any long-term language
deficit (Sanai, Mizadeh, & Berger, 2008).
For
bilingual and multilingual patients, brain activation (see review in
Indefrey, 2006) and ESM studies (e.g. Giussani et al. 2007; Lucas et
al. 2004) have shown that different languages may be localized, at
least partially, in distinct microanatomical systems located within
the same gross anatomical areas.
We
report 3 case studies, for which a comprehensive assessment of
languages they were fluent in was conducted pre-, intra-, and
post-operatively, to preserve their communication skills and quality
of life:
- A
French-English-Slovakian-Spanish quadrilingual (PP);
- A
French-English-Occitan trilingual (MF);
- An
Arabic-Spanish-French trilingual (WA).
Two
patients (PP and MF) had a left premotor WHO grade II glioma, and one
patient (WA) had a left premotor cortical dysplasia.
Oral
language skills were assessed pre- and post-operatively with selected
parts of the Bilingual Aphasia Test (BAT) (Paradis et al. 1987) in
the languages they currently use: French-English for PP,
French-Occitan for MF, and Arabic-Spanish-French for WA. Naming tasks
were constructed in the same languages. Pictures were selected from
the CRL-IPNP corpus (Szekely et al., 2005) with the exclusion of all
pictures which elicited cognates or compound words, or which were
culturally not adapted. The selected pictures were matched as far as
possible for length across languages and frequency. Only pictures
that the patient named correctly in each language were retained for
intraoperative testing. Additionally, a switch task was constructed
for each patient involving the two most important languages. The
blocked naming tasks in two languages and the switch task were used
for ESM during surgery. These were also used for post-operative
testing, as well as the BAT.
We
will present pre- and postoperative behavioral data as well as brain
mapping data and discuss their relevance with respect to the neural
representation of languages in multilingual speakers.
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