Abstract
The intraparietal sulcus (IPS) is structurally and functionally heterogeneous. We performed a quantitative cyto-/myelo- and receptor architectonical analysis to provide a multimodal map of the macaque IPS. We identified 17 cortical areas, including novel areas PEipe, PEipi (external and internal subdivisions of PEip), and MIPd. Multivariate analyses of receptor densities resulted in a grouping of areas based on the degree of (dis)similarity of their receptor architecture: a cluster encompassing areas located in the posterior portion of the IPS and associated mainly with the processing of visual information, a cluster including areas found in the anterior portion of the IPS and involved in sensorimotor processing, and an 'intermediate' cluster of multimodal association areas. Thus, differences in cyto-/myelo- and receptor architecture segregate the cortical ribbon within the IPS, and receptor fingerprints provide novel insights into the relationship between the structural and functional segregation of this brain region in the macaque monkey.
Highlights
In primates, the intraparietal sulcus (IPS) serves as an interface between the visual and sensorimotor systems in order to integrate visual and somatosensory modalities
The goal of the present study is to explore the regional organization of the IPS and its junction with the parieto-occipital sulcus (POS) based on the regional and laminar distribution of the densities of multiple receptors combined with cyto- and myeloarchitecture
Seventeen distinct subdivisions were cyto-/myelo- and receptor architectonically mapped within the macaque IPS and at its junction with the POS
Summary
The intraparietal sulcus (IPS) serves as an interface between the visual and sensorimotor systems in order to integrate visual and somatosensory modalities. It represents a region involved in multiple functions. The IPS is a major landmark on the lateral surface of the macaque parietal lobe. It separates the superior (SPL) from the inferior (IPL) lobule. Along the rostral-caudal direction, the IPS is strategically situated between the sensorimotor cortex around the central sulcus and the visual cortex in the occipital lobe
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
