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Titolo:
Human primary auditory cortex: Cytoarchitectonic subdivisions and mapping into a spatial reference system
Autore:
Morosan, P; Rademacher, J; Schleicher, A; Amunts, K; Schormann, T; Zilles, K;
Indirizzi:
Univ Dusseldorf, C&O Vogt Inst Brain Res, D-40225 Dusseldorf, Germany UnivDusseldorf Dusseldorf Germany D-40225 , D-40225 Dusseldorf, Germany Univ Dusseldorf, Dept Neuroanat, D-40225 Dusseldorf, Germany Univ Dusseldorf Dusseldorf Germany D-40225 , D-40225 Dusseldorf, Germany Univ Dusseldorf, Dept Neurol, D-40225 Dusseldorf, Germany Univ DusseldorfDusseldorf Germany D-40225 , D-40225 Dusseldorf, Germany Res Ctr Julich, Inst Med, Julich, Germany Res Ctr Julich Julich GermanyRes Ctr Julich, Inst Med, Julich, Germany
Titolo Testata:
NEUROIMAGE
fascicolo: 4, volume: 13, anno: 2001,
pagine: 684 - 701
SICI:
1053-8119(200104)13:4<684:HPACCS>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
POSITRON-EMISSION-TOMOGRAPHY; PRIMARY SOMATOSENSORY CORTEX; LEFT-RIGHT ASYMMETRIES; TONOTOPIC ORGANIZATION; HUMAN-BRAIN; QUANTITATIVE APPROACH; CYTOCHROME-OXIDASE; EVOKED-POTENTIALS; CEREBRAL-CORTEX; DIFFERENT AREAS;
Keywords:
human cerebral cortex; auditory cortex; cytoarchitecture; image analysis; brain mapping;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
107
Recensione:
Indirizzi per estratti:
Indirizzo: Zilles, K Univ Dusseldorf, C&O Vogt Inst Brain Res, Univ Str 1, D-40225 Dusseldorf, Germany Univ Dusseldorf Univ Str 1 Dusseldorf Germany D-40225 , Germany
Citazione:
P. Morosan et al., "Human primary auditory cortex: Cytoarchitectonic subdivisions and mapping into a spatial reference system", NEUROIMAGE, 13(4), 2001, pp. 684-701

Abstract

The transverse temporal gyrus of Heschl contains the human auditory cortex. Several schematic maps of the cytoarchitectonic correlate of this functional entity are available, but they present partly conflicting data (number and position of borders of the primary auditory areas) and they do not enable reliable com parisons with functional imaging data in a common spatial reference system. In order to provide a 3-D data set of the precise positionand extent of the human primary auditory cortex, its putative subdivisions, and its topographical intersubject variability, we performed a quantitative cytoarchitectonic analysis of 10 brains using a recently established technique for observer-independent definition of areal borders. Three areas, Te1.1, Te1.0, and Te1.2, with a well-developed layer IV, which represent theprimary auditory cortex (Brodmann area 41), can be identified along the mediolateral axis of the Heschl gyrus. The cell density was significantly higher in Te1.1 compared to Te1.2 in the left but not in the right hemisphere. The cytoarchitectonically defined areal borders of the primary auditory cortex do not consistently match macroanatomic landmarks like gyra1 and sulcal borders. The three primary auditory areas of each postmortem brain were mapped to a spatial reference system which is based on a brain registered byin vivo magnetic resonance imaging. The integration of a sample of postmortem brains in a spatial reference system allows one to estimate the spatialvariability of each cytoarchitectonically defined region with respect to this reference system. In future, the transfer of in vivo structural and functional data into the same spatial reference system will enable accurate comparisons of cytoarchitectonic maps of the primary auditory cortex with activation centers as established with functional imaging procedures. (C) 2001Academic Press.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/01/20 alle ore 13:10:32