Temporal summation by Pacinian corpuscles precludes entrainment at the detection threshold.
For rapidly adapting mechanoreceptor afferents, entrainment is defined as a response of one spike per stimulus cycle. For Pacinian corpuscles, the entrainment threshold and psychophysical detection threshold are similar. The psychophysical threshold, however, exhibits temporal summation, which proves that the psychophysical threshold and the physiological entrainment threshold cannot be identical.
D006801:Humans; D008465:Mechanoreceptors / Q000502:physiology*; D010141:Pacinian Corpuscles / Q000502:physiology*; D012684:Sensory Thresholds / Q000502:physiology; D013997:Time Factors; D014110:Touch / Q000502:physiology*; D014732:Vibration