A circuit for simultaneous measurements of skin electrical conductance, susceptance, and potential

Abstract

A circuit is presented that enables measurement of skin electrical conductance, susceptance, and potential simultaneously beneath the same monopolar electrode. Example measurements are shown to confirm the function of the circuit. The measurements are also in accordance with earlier findings that changes in skin conductance and potential do not always correspond and hence contain unique information.

Keywords

• electrodermal activity
• bioimpedance
• electrodes