A lead stimulation/recording system is provided, which is a combination of
a permanent DBS stimulating lead and a recording microelectrode. The DBS
lead has a lumen extending from the proximal to the distal end of the
lead, the lumen having an opening on each end of the lead. The
microelectrode is configured and dimensioned to be insertable into the
DBS lead from either the distal or proximal opening of the DBS lead,
thereby permitting the microelectrode to be placed before, concurrently
with, or after placement of the DBS lead. In addition, the system may be
used with known microelectrode recording systems and methods of inserting
the electrodes, such as the five-at-a-time method, the dual-microdrive
method, or the single microdrive method.