Titre
The Complex Hodological Architecture of the Macaque Dorsal Intraparietal Areas as Emerging from Neural Tracers and DW-MRI Tractography.
Type
article
Institution
UNIL/CHUV/Unisanté + institutions partenaires
Périodique
Auteur(s)
Caminiti, R.
Auteure/Auteur
Girard, G.
Auteure/Auteur
Battaglia-Mayer, A.
Auteure/Auteur
Borra, E.
Auteure/Auteur
Schito, A.
Auteure/Auteur
Innocenti, G.M.
Auteure/Auteur
Luppino, G.
Auteure/Auteur
Liens vers les unités
ISSN
2373-2822
Statut éditorial
Publié
Date de publication
2021
Volume
8
Numéro
4
Première page
0102
Dernière page/numéro d’article
21.2021
Peer-reviewed
Oui
Langue
anglais
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Publication Status: epublish
Publication Status: epublish
Résumé
In macaque monkeys, dorsal intraparietal areas are involved in several daily visuomotor actions. However, their border and sources of cortical afferents remain loosely defined. Combining retrograde histologic tracing and MRI diffusion-based tractography, we found a complex hodology of the dorsal bank of the intraparietal sulcus (db-IPS), which can be subdivided into a rostral intraparietal area PEip, projecting to the spinal cord, and a caudal medial intraparietal area MIP lacking such projections. Both include an anterior and a posterior sector, emerging from their ipsilateral, gradient-like connectivity profiles. As tractography estimations, we used the cross-sectional area of the white matter bundles connecting each area with other parietal and frontal regions, after selecting regions of interest (ROIs) corresponding to the injection sites of neural tracers. For most connections, we found a significant correlation between the proportions of cells projecting to all sectors of PEip and MIP along the continuum of the db-IPS and tractography. The latter also revealed "false positive" but plausible connections awaiting histologic validation.
PID Serval
serval:BIB_CC10648A563B
PMID
Open Access
Oui
Date de création
2021-06-15T09:57:21.866Z
Date de création dans IRIS
2025-05-20T21:53:07Z
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Nom
34039649_BIB_CC10648A563B.pdf
Version du manuscrit
published
Licence
https://creativecommons.org/licenses/by/4.0
Taille
7.15 MB
Format
Adobe PDF
PID Serval
serval:BIB_CC10648A563B.P001
URN
urn:nbn:ch:serval-BIB_CC10648A563B1
Somme de contrôle
(MD5):15a7e5fe045608acb39c488c52b0db51