Experimental Brain Research

, Volume 57, Issue 2, pp 381–389 | Cite as

Topography and trajectories of commissural fibers of the superior temporal region in the rhesus monkey

  • P. B. Cipolloni
  • D. N. Pandya


The topography and trajectories of the commissural fibers of the superior temporal region (STR) are studied using the autoradiographic technique. The superior temporal region is connected with the opposite cerebral hemisphere by way of two commissures. The rostral third of the supratemporal plane (STP) and superior temporal gyrus (STG) sends commissural connections through the anterior commissure. The caudal portions of the STP and STG, including the primary auditory area, send their interhemispheric connections via the caudal corpus callosum only. The mid-portion of the STR sends interhemispheric fibers through both the corpus callosum and anterior commissure. In the midsagittal plane, interhemispheric fibers coursing in the anterior commissure are located in its ventral portions and those fibers coursing through the corpus callosum are located in its caudal portion rostral to the splenium. It appears that this pattern of interhemispheric connections of the STR is related to the architectonic characteristics of the areas of origin of the fibers. The rostral STR, which has less well-differentiated cortical lamination patterns, sends fibers via the anterior commissure while the posterior STR fibers, coming from more differentiated cortices, travel by way of the corpus callosum.

Key words

Temporal Topography Commissural Connections 


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  1. Barbas H, Pandya DN (1984) Topography of commissural fibers of the prefrontal cortex in the rhesus monkey. Exp Brain Res 55: 187–191Google Scholar
  2. Cowan WM, Gottlieb DI, Hendrickson AE, Price JL, Woolsey TA (1972) Autoradiograhic demonstration of axonal connections in the central nervous system. Brain Res 37: 21–51Google Scholar
  3. Demeter S, Rosene DL, Van Hoesen GW (1985) Interhemispheric pathways of the hippocampal commissures. J Comp Neurol (in press)Google Scholar
  4. Fitzpatrick KA, Imig TJ (1980) Auditory cortico-cortical connections in the owl monkey. J Comp Neurol 192: 589–610Google Scholar
  5. Hamilton CR, Tieman SB, Vermeire BA, Meyer RL (1982) Localization of interhemispheric visual connections in macaques. Neuroscience Abstr 8: 628Google Scholar
  6. Hyvärinen J (1982) The parietal cortex of monkey and man. Springer, Berlin Heidelberg New York, pp 122Google Scholar
  7. Jouandet ML, Gazzaniga MS (1979) Cortical field of origin of the anterior commissure of the rhesus monkey. Exp Neurol 66: 381–397Google Scholar
  8. Karol EA, Pandya DN (1971) The distribution of the corpus callosum in the rhesus monkey. Brain 94: 472–486Google Scholar
  9. Leinonen L, Hyvärinen J, Sovijärvi ARA (1980) Functional properties of neurons in the temporo-parietal association cortex of awake monkey. Exp Brain Res 39: 203–215PubMedGoogle Scholar
  10. Myers RE (1965) The neocortical commissures and interhemispheric transmission of information. In: Ettinger EG (ed) Function of corpus callosum. Little, Brown and Co, Boston, Mass, pp 1–77Google Scholar
  11. Pandya DN, Hallet M, Mukherjee S (1969) Intra- and interhemispheric projections of the neo-cortical auditory system in rhesus monkey. Brain Res 14: 49–65CrossRefPubMedGoogle Scholar
  12. Pandya DN, Karol EA, Heilbronn D (1971) The topographical distribution of interhemispheric projections in the corpus callosum of the rhesus monkey. Brain Res 32: 31–43Google Scholar
  13. Pandya DN, Karol EA, Lele PP (1973) The distribution of the anterior commissure in the squirrel monkey. Brain Res 49: 177–180Google Scholar
  14. Pandya DN, Sanides F (1973) Architectonic parcellation of the temporal operculum in rhesus monkey and its projection pattern. Z Anat Entwicklungs-Gesch 139: 127–161Google Scholar
  15. Seltzer B, Pandya DN (1983) The distribution of posterior parietal fibers in the corpus callosum of the rhesus monkey. Exp Brain Res 49: 147–150Google Scholar
  16. Sunderland S (1940) The distribution of commissural fibers in the corpus callosum in the macaque monkey. J Neurol Psychiat 3: 9–18Google Scholar
  17. Van Essen DC, Newsome WT, Bixby JL (1982) The pattern of interhemispheric connections and its relationship to extrastriate visual areas in the macaque monkey. J Neurosci 2: 265–283Google Scholar
  18. Whitlock DG, Nauta WJH (1956) Subcortical projections from the temporal neocortex in macaca mulatta. J Comp Neurol 106: 183–212Google Scholar
  19. Zeki SM (1973) Comparison of the cortical degeneration in the visual regions of the temporal lobe of the monkey following section of the anterior commissure and the splenium. J Comp Neurol 148: 167–176Google Scholar

Copyright information

© Springer-Verlag 1985

Authors and Affiliations

  • P. B. Cipolloni
    • 1
    • 2
  • D. N. Pandya
    • 1
    • 2
  1. 1.Edith Nourse Rogers Memorial Veterans HospitalBedfordUSA
  2. 2.Department of Anatomy and NeurologyBoston University School of MedicineBostonUSA

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