Microiontophoretic Study of Individual Neurons During Intracellular Recording
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There is an increasing tendency to combine multidisciplinary methods in studying the central nervous systems. One recently
developed technique is the combination of electrophysiological and pharmacological investigations by making intracellular
recording during extracellular iontophoresis of drugs to study the effects of neurotransmitters on neuronal activity and connections.
In this chapter, we describe this technique in detail.
We show how:
| 1. |
Electrodes are made for this type of study.
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| 2. |
Drug solutions are prepared for current iontophoresis.
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| 3. |
A microiontophoresis current generator is used to iontophoretically inject drugs onto a neuron while performing intracellular
recording.
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At the end of this chapter, we provide an example from our recent studies that uses this iontophoretic technique to study
effect of counter-intuitive inhibitory effect of blocking GABAA
receptors in the control of post-inspiratory activity of the expiratory laryngeal motoneurons.
