Fig. 3. Peristimulus time histograms showing three receptor response profiles found during the quantitative phase of experiments in the coast mole. (A) Slowly adapting Merkel-like response with a high dynamic sensitivity and a random sustained discharge. (B) Rapidly adapting Pacinian-like (PC-like) response sensitive to changes in the dynamic phase of the indentation with no response to the static portion of the indentation. (C) Rapidly adapting response to the compressive phase of the indentation and silent through the static phase. This response is hypothesized to be from the intraepidermal free nerve endings. Imp, impulses.