An apparatus for the assembly of a combined single barrel recording electrode and a multibarrelled micropipette.

In order to impale cells lying in deeper structures of the brain with 'parallel' multibarrelled electrode, we designed a new apparatus for the assembly of a multibarrelled micropipette and a single barrel recording electrode. This device greatly simplifies the procedure of constructing electrodes with shafts of approximately 15-20 mm in length even if the multibarrelled micropipettes are pulled with a slightly curved shaft and the bend made near the base of the shaft is not exactly to the specified angle. Electrodes of this type greatly improve the size and stability of the extracellularly recorded units from the caudate nucleus.