An electrode assembly for use with a living subject includes a substrate
having first and second openings extending therethrough, and a first
terminal at least partially received within the first opening. The first
terminal includes an end portion having a first size. At least a portion
of the first terminal configured to conduct electrical current. A second
terminal is at least partially received within the second opening. The
second terminal includes an end portion having a second size that is
different than the first size of the first terminal end portion. At least
a portion of the second terminal is configured to conduct electrical
current. The assembly also includes a first electrolytic element
configured to transfer electrical current between the skin of a living
subject and the first terminal, and a second electrolytic element
configured to transfer electrical current between the skin of a living
subject and the second terminal.