Implanted Electrodes: Cable Coupler for Elimination of Movement Artifact

See allHide authors and affiliations

Science  31 May 1963:
Vol. 140, Issue 3570, pp. 988-989
DOI: 10.1126/science.140.3570.988


The wires in the recording cable are connected to stainless-steel tubes supported by a ball bearing. The tips of the tubes rotate freely in mercury-filled grooves connected to the recorder through stainless-steel screws. No attenuation or distortion of the signal appears on records obtained through the coupler.