Auditory agnosia and auditory spatial deficits following left hemispheric lesions: evidence for distinct processing pathways.

Détails

ID Serval
serval:BIB_7257D9B63AB8
Type
Article: article d'un périodique ou d'un magazine.
Sous-type
Etude de cas (case report): rapporte une observation et la commente brièvement.
Collection
Publications
Titre
Auditory agnosia and auditory spatial deficits following left hemispheric lesions: evidence for distinct processing pathways.
Périodique
Neuropsychologia
Auteur(s)
Clarke S., Bellmann A., Meuli R.A., Assal G., Steck A.J.
ISSN
0028-3932
Statut éditorial
Publié
Date de publication
2000
Peer-reviewed
Oui
Volume
38
Numéro
6
Pages
797-807
Langue
anglais
Notes
Publication types: Case Reports ; Journal Article ; Research Support, Non-U.S. Gov't - Publication Status: ppublish
Résumé
Auditory recognition and auditory spatial functions were studied in four patients with circumscribed left hemispheric lesions. Patient FD was severely deficient in recognition of environmental sounds but normal in auditory localisation and auditory motion perception. The lesion included the left superior, middle and inferior temporal gyri and lateral auditory areas (as identified in previous anatomical studies), but spared Heschl's gyrus, the acoustic radiation and the thalamus. Patient SD had the same profile as FD, with deficient recognition of environmental sounds but normal auditory localisation and motion perception. The lesion comprised the postero-inferior part of the frontal convexity and the anterior third of the temporal lobe; data from non-human primates indicate that the latter are interconnected with lateral auditory areas. Patient MA was deficient in recognition of environmental sounds, auditory localisation and auditory motion perception, confirming that auditory spatial functions can be disturbed by left unilateral damage; the lesion involved the supratemporal region as well as the temporal, postero-inferior frontal and antero-inferior parietal convexities. Patient CZ was severely deficient in auditory motion perception and partially deficient in auditory localisation, but normal in recognition of environmental sounds; the lesion involved large parts of the parieto-frontal convexity and the supratemporal region. We propose that auditory information is processed in the human auditory cortex along two distinct pathways, one lateral devoted to auditory recognition and one medial and posterior devoted to auditory spatial functions.
Mots-clé
Aged, Agnosia, Animals, Auditory Perception, Environment, Female, Functional Laterality, Humans, Macaca, Magnetic Resonance Imaging, Male, Middle Aged, Neural Pathways, Severity of Illness Index, Sound Localization, Space Perception, Temporal Lobe, Thalamus, Tomography, X-Ray Computed
Pubmed
Web of science
Création de la notice
08/04/2008 15:48
Dernière modification de la notice
03/03/2018 18:17
Données d'usage