Deep Brain Stimulation of Hemiparkinsonian Rats with Unipolar and Bipolar Electrodes for up to 6 Weeks: Behavioral Testing of Freely Moving Animals

Figure 1

Photographs of tips (left), distal connections (center), and schematic drawings (right) of (a) the unipolar (200 µm wire diameter) and (b) the bipolar microelectrode (125 µm wire diameter). The electrode shafts were insulated with 25 µm polyesterimide. All electrode tips were bare for 100 µm.