First‐order afferent single‐unit responses were obtained to sinusoidal one‐ and two‐frequency stimulation of the touch corpuscle in the cat. With two‐frequency stimulation, the amount of “masking” varied with the frequency and with the amplitude of the stimuli. In some instances, the addition of a second frequency decreased unit's rate of firing below the rate at which it was responding to a single frequency. The “masked” thresholds in the two‐frequency stimulation were predictable from the single‐frequency rate‐intensity functions for the unit, as were some of the decreased firing rates occurring during two‐frequency stimulation.