Skip to main content
Log in

Electrophysiological analysis of corticopontine connections

  • Published:
Neurophysiology Aims and scope

Abstract

In acute experiments on cats anesthetized with pentobarbital and chloralose, the method of recording focal responses was used to study projections of various parts of the orbito-frontal and basal temporal cortex and also of the hippocampus in the region of the pons. Different formations of the fronto-basal zones of the neocortex were shown to have local projections in the rostral zones of the pons and relatively diffuse projections in its caudal zones. Projections of the hippocampus in structures of the pons are less well marked than those of the fronto-basal zones of the neocortex and their focal responses are more diffuse in character. Representation of all the structures studied is found only in the nuclei of the gray matter of the pons. The orbito-insular zone of the orbito-frontal cortex is not represented in the caudal zones of the reticular formation; the basal temporal cortex has no projection in the middle cerebellar peduncles.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

Literature cited

  1. S. M. Butkhuzi, K. G. Aivazov, and V. G. Berishvili, "Characteristics of development of the paradoxical phase of sleep during stimulation of the pontine reticular formation in cats," Soobshch. Akad. Nauk Gruz. SSSR,62, 425 (1971).

    Google Scholar 

  2. V. F. Kichigina and O. S. Vinogradova, "The effect of hippocampal stimulation on unit activity of the reticular formation," Fiziol. Zh. SSSR,60, 1648 (1974).

    Google Scholar 

  3. S. P. Narikashvili and T. G. Tatevosyan, "The ascending influence of the nuclei raphe of the brain stem on cortical electrical activity," Soobshch. Akad. Nauk Gruz. SSR,61, 673 (1971).

    Google Scholar 

  4. G. G. Berntson, "Attack, grooming, and threat elicited by stimulation of the pontine tegmentum in cats," Fiziol. Behav.,11, 81 (1973).

    Google Scholar 

  5. A. Brodal, J. Destombes, A. M. Lacerda and P. Angaut, "A cerebellar projection into the pontine nuclei. An experimental anatomical study in the cat," Exp. Brain Res.,16, 115 (1972).

    Google Scholar 

  6. P. Brodal, "Demonstration of a somatotopically organized projection from the primary sensorimotor cortex to the pontine nuclei in the cat," Folia Morphol.,16, 105 (1968).

    Google Scholar 

  7. P. Brodal, "The corticopontine projection in the cat. Demonstration of a somatotopically organized projection from the second somatosensory cortex," Arch. Ital. Biol.,106, 310 (1968).

    Google Scholar 

  8. P. Brodal, "The corticopontine projection in the cat. I. The projection from the proreate gyrus," J. Comp. Neurobiol.,142, 127 (1971).

    Google Scholar 

  9. P. Brodal, "The corticopontine projection in the cat. II. The projection from the orbital gyrus," J. Comp. Neurobiol.,142, 141 (1971).

    Google Scholar 

  10. P. Brodal, "The corticopontine projection from the visual cortex in the cat. I. The total projection and projection from area 17," Brain Res.,39, 297 (1972).

    Google Scholar 

  11. P. Brodal, "The corticopontine projection in the cat. The projection from the auditory cortex," Arch. Ital. Biol.,110, 119 (1972).

    Google Scholar 

  12. R. Grantyn, M. Marghelli, A. Grantyn and M. Mancia, "Postsynaptic potentials in the mesencephalic and ponto-medullary regions underlying descending limbic influences," Brain Res.,56, 107 (1973).

    Google Scholar 

  13. H. G. M. Kuypers, "An anatomical analysis of corticobulbar connexions to the pons and lower brain stem in the cat," J. Anat.,92, 198 (1958).

    Google Scholar 

  14. O. E. Millhouse, "A Golgi study of the descending medial forebrain bundle," Brain Res.,15, 341 (1969).

    Google Scholar 

  15. N. Mizuno, K. Mochizuki, C. Akimoto, R. Matsushima, and K. Sasaki, "Projections from the parietal cortex to the brain stem nuclei in the cat, with special reference to the parietal cerebrocerebellar system," J. Comp. Neurobiol.,147, 511 (1973).

    Google Scholar 

  16. W. J. Nauta, "Hippocampal projections and related neural pathways to the midbrain," Brain,81, 319 (1958).

    Google Scholar 

  17. W. J. Nauta and H. G. Kuypers, "Some ascending pathways in the brain stem reticular formation," in: Reticular Formation of the Brain, Henry Ford Hospital International Symposium, Little Brown, Boston (1958), p. 160.

    Google Scholar 

  18. G. F. Rossi and A. Brodal, "Corticofugal fibers to the brain stem reticular formation. An experimental study in the cat," J. Anat.,90, 42 (1956).

    Google Scholar 

  19. R. J. Snider and W. T. Niemer, A Stereotaxic Atlas of the Cat Brain, University of Chicago Press, Chicago (1961), 76 pp.

    Google Scholar 

  20. K. Saski, S. Kawaguchi, T. Shimono and S. Prelevic, "Electrophysiological studies of the pontine nuclei," Brain Res.,20, 425 (1970).

    Google Scholar 

  21. H. Simon, M. Le Moal, and B. Gardo, "Self-stimulation in the dorsal pontine tegmentum in the rat," Behav. Biol.,13, 339 (1975).

    Google Scholar 

  22. J. Szenthagothai, "A stereotaxic alven alapulo müszerek es alxalmazasuk," in: A Kisezleti Ozvostudomani Vizsgalo Modszerei, Budapest (1957), 126 pp.

Download references

Authors

Additional information

A. M. Gor'kii Donetsk Medical Institute. Translated from Neirofiziologiya, Vol. 9, No. 4, pp. 347–354, July–August, 1977.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Kazakov, V.N., Dolgopolov, A.M. Electrophysiological analysis of corticopontine connections. Neurophysiology 9, 268–274 (1977). https://doi.org/10.1007/BF01063689

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01063689

Keywords

Navigation