Tripolar nerve cuff recording: stimulus artifact, EMG and the recorded nerve signal

Properties of nerve cuff recording electrodes were analyzed. Tripolar cuff electrodes have to be described essentially different for (propagating) nerve signals inside the cuff, and electrical muscle activity and stimulus artifacts arising from sources outside the cuff. It was experimentally shown that the signals originating outside the cuff are differently and much stronger influenced by the addition of a balancing resister to the outer cuff electrodes than the nerve signal.