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Changes in Response Profiles of Taste Cells in the Brain Stem Parallel Those Observed in Somatosensory Thalamic Cells Following Anesthetization of Part of Their Receptive Fields

  • Patricia M. Di Lorenzo
  • Christian H. Lemon
  • Martin D. Kawamoto

Abstract

Previous studies of electrophysiological responses to taste stimuli have revealed that taste cells at all levels of the nervous system are generally multisensitive, i.e. they respond to more than one of the four basic taste qualities (salty, sour, bitter and sweet). The study of the response profiles of taste cells, defined as their relative sensitivities across a variety of taste stimuli, and their organization has formed the basis for all major theories of taste coding. The careful examination of response profiles of taste cells, i.e. their extent and construction, is therefore of great import for our understanding of the operational principles of the gustatory system.

Keywords

Receptive Field Test Stimulus Response Profile Taste Cell Taste Stimulus 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Contreras, R.J. (1977) Changes in gustatory nerve discharges with sodium deficiency: A single unit analysis. Brain. Res. 121. 373–378.PubMedCrossRefGoogle Scholar
  2. 2.
    Contreras, R.J. and Frank, M.E. (1979) Sodium deprivation alters neural responses to gustatory stimuli. J. Gen. Phrsiol. 73: 569–594.CrossRefGoogle Scholar
  3. 3.
    Di Lorenzo, P.M. (1990) Corticofugal influence on taste responses in the parabrachial puns of the rat. Brain Res. 530: 73–84.PubMedCrossRefGoogle Scholar
  4. 4.
    Di Lorenzo, P.M. and Grasso, F.W. Representation of stimulus quality and intensity in a network model of brainstem gustatory neural coding. Soc. Neurosci. Ahstr: 20(2): 979, 1994.Google Scholar
  5. 5.
    Di Lorenzo, P.M. and Monroe. S. (1995) Corticofugal influence on taste responses in the nucleus of the solitary tract in the ratchrw(133) Neurop/trsiol., 74 (1), 258–272.Google Scholar
  6. 6.
    Di Lorenzo, P.M. and Monroe, S. (1989) Taste responses in the parabrachial pons of male, female and pregnant rats. Brain Res. Bull., 23, 219–227.PubMedCrossRefGoogle Scholar
  7. 7.
    Di Lorenzo, P.M. and Monroe, S. (1990) Taste responses in the parabrachial pons of ovariectomized rats. Bruin Res. Bull., 25, 741–748.CrossRefGoogle Scholar
  8. 8.
    Di Lorenzo, P.M. and Monroe, S. (1992) Corticofugal input to taste-responsive units in the parabrachial puns. Brain Res. Bull., 29, 925–930.PubMedCrossRefGoogle Scholar
  9. 9.
    Grasso, F.W. and Di Lorenzo, P.M. Information processing in the gustatory nuclei of the brain stem: Gustatory Unit Stimulus Selective Topographical Organizer (GUSSTO), a network model. Paper presented at the 16th Annual Meeting of the Association for Chemoreception Sciences, Sarasota, Florida, 1994.Google Scholar
  10. 10.
    Niculelis, M.A.L., Lin, R.C.S., Woodward. D.J. and Chapin, J. K. (1993) Induction of immediate spatiotemporal changes in thalamic networks by peripheral block of ascending cutaneous information. Nature 36/:533–536.Google Scholar

Copyright information

© Springer Science+Business Media New York 1997

Authors and Affiliations

  • Patricia M. Di Lorenzo
    • 1
  • Christian H. Lemon
    • 1
  • Martin D. Kawamoto
    • 1
  1. 1.Department of PsychologySUNY at BinghamtonBinghamtonUSA

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