Acquired neurogenic foreign accent syndrome after right-hemisphere lesion with left cerebellar diaschisis: A longitudinal study.
Apraxia of speech
Cerebellum
Diaschisis
Foreign accent syndrome
Motor speech disorders
Journal
Cortex; a journal devoted to the study of the nervous system and behavior
ISSN: 1973-8102
Titre abrégé: Cortex
Pays: Italy
ID NLM: 0100725
Informations de publication
Date de publication:
09 2020
09 2020
Historique:
received:
10
07
2019
revised:
10
03
2020
accepted:
26
05
2020
pubmed:
21
7
2020
medline:
22
6
2021
entrez:
21
7
2020
Statut:
ppublish
Résumé
Patients affected by acquired neurogenic foreign accent syndrome (ANFAS) start speaking with a new accent that resembles that of a foreign language. ANFAS has been reported following left-hemisphere damage, but it is extremely rare after right-hemisphere damage. We described KKE, a right-hemisphere-damaged patient. His cognitive functions were largely intact and he was not aphasic. Nonetheless, KKE showed a marked foreing accent which was mainly judged as Slavic. Positron emission tomography revealed left cerebellar diaschisis, even if the cerebellum did not appear lesioned, on MRI scans. Remarkably, KKE still showed ANFAS three years after lesion onset. We propose that this very rare variant of ANFAS, after right-hemisphere lesion, can be due to the damage of a complex cerebral network involving supra- and infra-tentorial structures.
Identifiants
pubmed: 32688273
pii: S0010-9452(20)30221-5
doi: 10.1016/j.cortex.2020.05.019
pii:
doi:
Types de publication
Case Reports
Langues
eng
Sous-ensembles de citation
IM
Pagination
220-230Informations de copyright
Copyright © 2020 Elsevier Ltd. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of Competing Interest None.