Individual example of cumulated responses of a VMl neuron to supramaximal percutaneous electrical stimulation of different parts of the body. Poststimulus histograms were built from the responses to 30 stimulus presentations (0.66 Hz). The intensities were 15 mA for the tail and 10 mA for the paws and face. Note that (1) Aδ- and C-fiber-evoked responses were produced from all the areas stimulated, and (2) the differences in latencies of the responses evoked by stimulating the base and tip of the tail.