Brain Region to Region Macroconnections
The subpages of this Connections webpage (accessed from the drop-down menu of the navigation bar above) provide collated published region-to-region macroconnection reports for major divisions of the central nervous system (CNS). Each subpage provides macroconnection data (inputs and outputs) for a different CNS division, and is named accordingly. Currently available data includes ~72,000 macroconnection reports for the bilateral cerebral nuclei (basal ganglia), cerebral cortex, hypothalamus, and thalamus of the rat. Region nomenclature follows an open access atlas for the rat brain (Brain Maps 4.0. Swanson, L.W. 2018). For additional information, including details of CNS region organization, see the atlas, or on this website the Brain Maps page and the interactive spreadsheet Brain Maps 4.0 CNS Divisions. Use the table below to find a region name if only the abbreviation is known, or vice versa.
Brain Region Names & Abbreviations
Use the searchable table below to find the name of a gray matter region if only the abbreviation is known, or vice versa. For names and abbreviations of divisions below or above the level of gray matter region, and for other structures, refer to Brain Maps 4.0 (see also the interactive spreadsheet Brain Maps 4.0 CNS Divisions.)
Macroconnection Data Sources
Macroconnection reports provided on this website were collated from the primary literature. The publications below describe network analyses based on selected reports.
1. Swanson, L.W., Sporns, O., Hahn, J.D. (2016). Network architecture of the cerebral nuclei (basal ganglia) association and commissural connectome. Proc Natl Acad Sci USA. 113(40): E5972-E5981. doi: 10.1073/pnas.1613184113
2. Swanson, L.W., Hahn, J.D., Sporns, O. (2017). Organizing principles for the cerebral cortex network of commissural and association connections. Proc Natl Acad Sci USA. 114(45): E9692-E9701. doi: 10.1073/pnas.1712928114
3. Swanson, L.W., Hahn, J.D., Jeub, L.G.S., Fortunato, S., Sporns, O. (2018). Subsystem organization of axonal connections within and between the right and left cerebral cortex and cerebral nuclei (endbrain). Proc Natl Acad Sci USA. 115(29): E6910-E6919. doi: 10.1073/pnas.1807255115
4. Hahn, J.D., Sporns, O., Watts, A.G., Swanson, L.W. (2019). Macroscale intrinsic network architecture of the hypothalamus. Proc Natl Acad Sci USA. 116(16): 8018-8027. doi: 10.1073/pnas.1819448116
5. Swanson, L.W., Sporns, O., Hahn, J.D. (2019). The network organization of rat intrathalamic macroconnections and a comparison with other forebrain divisions. Proc Natl Acad Sci USA. 116(27): 13661-13669 doi: 10.1073/pnas.1905961116
6. Swanson, L.W., Sporns, O., Hahn, J.D. (2019) The network architecture of rat intrinsic interbrain (diencephalon) macroconnections and a comparison with endbrain (telencephalon) architecture. Proc Natl Acad Sci USA. 116(52): 26991-27000. doi: 10.1073/pnas.1915446116
Header Image: Illustration adapted from Swanson, Hahn, & Sporns (2017) illustrating part of the subsystem organization of macroconnections between gray matter regions in the cerebral cortex.