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Application of in Vivo Electrochemistry to Cholecystokinin-Dopamine Interactions in the Ventral Striatum

  • Charles D. Blaha
  • Ross F. Lane
  • Anthony G. Phillips
Part of the Advances in Behavioral Biology book series (ABBI, volume 32)

Abstract

In vivo electrochemistry (also referred to as in vivo voltammetry) is a relatively new technique that shows great promise for the direct measurement of several easily oxidized compounds in the brains of anesthetized and freely moving animals (for review, see ref. 1). This technique is being developed to provide information concerning the presence and concentrations of these compounds in the brain extracellular fluid and, perhaps more importantly, to measure dynamic changes in the concentration of these compounds, with particular emphasis on the monoamine neurotransmitters dopamine (DA), norepinephrine (NE) and serotonin (5-HT) and their metabolites. The catecholamines, DA and NE, and their metabolites, as well as 5-HT and its metabolites, are readily oxidized. Thus, the technique at present is primarily applicable to catecholaminergic and serotoninergic transmitter systems. Of particular interest is the monitoring of changes in the release of the neurotransmitter DA, because of its extensive interactions with other neurotransmitter or neuromodulatory systems and its proposed involvement in the behavioral pathology of a large number of neurological and psychiatric disorders. Thus, the electrochemical technique is particularly significant because it is the only method to make use of an on-line sensor that provides direct, continuous readout of released DA following typical stimulations and pharmacological manipulations of neural pathways without the necessity for perfusion or radioactive labelling, and with minimal perturbation to the brain cell microenvironment.

Keywords

Nucleus Accumbens Dopamine Release Ventral Striatum Cell Firing Depolarization Block 
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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Copyright information

© Plenum Press, New York 1987

Authors and Affiliations

  • Charles D. Blaha
    • 1
    • 3
  • Ross F. Lane
    • 2
    • 3
  • Anthony G. Phillips
    • 1
  1. 1.Departments of PsychologyUniversity of British ColumbiaVancouverCanada
  2. 2.Departments of ChemistryUniversity of British ColumbiaVancouverCanada
  3. 3.Departments of PsychiatryUniversity of British ColumbiaVancouverCanada

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