The invention encompasses compounds of Formula I, including pharmaceutically acceptable salts, their pharmaceutical compositions, and their use in treating CNS disorders. Each memory module includes two roughly L-shaped openings that extend from the top surface of the memory module near each side surface of the memory module. A conductive gel source is configured to provide conductive gel to a region between the electrode and the animal upon positioning of the electrode proximate the skin of the animal. The first surface is configured to facilitate rotation of the gasket body in a first rotational direction.