An electrode device for cardiological or neurological electrodiagnosis and/or electrotherapy, including at least one elongated electrode body, which has a proximal side and a distal side, wherein the electrode body comprises at least one electrode on the distal side for establishing electrical contact to the tissue and/or blood during use, wherein at least one of the electrodes is coated, at least in sections, with a dielectrically anisotropic material.
