Single unit recording

Single unit recording refers to the use of an electrodeto record the electrophysiologicalactivity (action potentials) from a single neuron. As with any other neuroimagingtechnique, single unit recording has its advantages and disadvantages.

Single unit recording is well suited to recording neuronal activity in awake, alive animals. The carbonfiber electrode which is passed into the brainis incredibley fine (25 µm) and held within a ridgid manipulator that usually glued to the skullof the experimental animal during in vivoexperiments for stability.

In contrast, an extracellular electrode can be used to make a multi-unit recordings in which the signal reflects the activity of hundreds of neurons.

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It uses material from the http://en.wikipedia.org/wiki/Single+unit+recording Wikipedia article Single unit recording.