Registration of individual units , registration of individual neurons is a technique for measuring the electrophysiological response of an individual neuron using a micro electrode . The microelectrode is fixed in the micropositioner, which is located on the head of the test animal. Most often, microelectrodes are implanted and fixed, which makes their further movement impossible. The technique of movable electrodes is also used. Then the electrodes are mounted on a micromotor, which allows you to position the electrodes vertically and horizontally. In the framework of this technique, the complexity is to ensure that microelectrodes measure only one neuron activity. Since the results of registering several units (cells) are more difficult to interpret since groups of cells can be physiologically heterogeneous . [one]
- ↑ http://www.acnp.org/g4/GN401000005/CH005.html American College of Neuropsychopharmacology: Electrophysiology