Neural correlates of naming errors across different neurodegenerative diseases: An FDG-PET study.
Aged
Aged, 80 and over
Alzheimer Disease
/ diagnostic imaging
Aphasia, Primary Progressive
/ diagnostic imaging
Connectome
Dementia
/ diagnostic imaging
Female
Fluorodeoxyglucose F18
Frontotemporal Dementia
/ diagnostic imaging
Humans
Language
Male
Neurodegenerative Diseases
/ diagnostic imaging
Occipital Lobe
/ diagnostic imaging
Pattern Recognition, Visual
/ physiology
Positron-Emission Tomography
Retrospective Studies
Semantics
Speech
/ physiology
Supranuclear Palsy, Progressive
/ diagnostic imaging
Temporal Lobe
/ diagnostic imaging
Journal
Neurology
ISSN: 1526-632X
Titre abrégé: Neurology
Pays: United States
ID NLM: 0401060
Informations de publication
Date de publication:
17 11 2020
17 11 2020
Historique:
received:
18
04
2020
accepted:
23
07
2020
pubmed:
3
10
2020
medline:
15
12
2020
entrez:
2
10
2020
Statut:
ppublish
Résumé
To investigate the types of errors produced in a picture naming task by patients with neurodegenerative dementia due to different etiologies and their neural correlates. The same standardized picture naming test was administered to a consecutive sample of patients (n = 148) who had been studied with [ Semantic errors were predominant in most patients, independent of clinical diagnosis. In the whole group analysis, visual errors correlated with hypometabolism in the right inferior occipital lobe and in the left middle occipital lobe. Semantic errors correlated with hypometabolism in the left fusiform gyrus, the inferior and middle temporal gyri, and the temporal pole. Phonologic errors were associated with hypometabolism in the left superior and middle temporal gyri. Both positive (occipital-posterior fusiform) and negative (anterior fusiform gyrus and the superior anterior temporal lobe) connectivity changes were associated with semantic errors. Naming errors reflect the dysfunction of separate stages of the naming process and are specific markers for different patterns of brain involvement. These correlations are not limited to primary progressive aphasia but extend to other neurodegenerative dementias.
Identifiants
pubmed: 33004608
pii: WNL.0000000000010967
doi: 10.1212/WNL.0000000000010967
doi:
Substances chimiques
Fluorodeoxyglucose F18
0Z5B2CJX4D
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e2816-e2830Commentaires et corrections
Type : CommentIn
Informations de copyright
© 2020 American Academy of Neurology.