Iontophoresis of neural agonists and antagonists during extracellular in vivo recordings is a powerful way to manipulate a neuron’s microenvironment. These manipulations can most easily be done via piggy-back multibarrel electrodes. Here we describe how to manufacture them and use them during auditory recordings.
Dondzillo, A., Thornton, J. L., Tollin, D. J., Klug, A. Manufacturing and Using Piggy-back Multibarrel Electrodes for In vivo Pharmacological Manipulations of Neural Responses. J. Vis. Exp. (71), e4358, doi:10.3791/4358 (2013).