title: Neuronal coding by cortical cells of the frequency of oscillating peripheral stimuli.
abstract: One class of neurons in the somatic sensory cortex of unanesthetized monkeys is rhythmically entrained by sinusoidal mechanical stimulation of the skin of the hand at low frequencies. A second class, which is linked to Pacinian afferents, increases its rate of discharge in response to high-frequency peripheral stimuli but is not entrained. The vibratory sense is served by two distinct classes of cortical cells. The code for the group sensitive to low-frequency stimuli is the temporal order of impulses; for the high-frequency group the code is the labeled line.
mesh_terms: D000818:Animals; D002540:Cerebral Cortex / Q000502:physiology*; D005071:Evoked Potentials; D000882:Haplorhini; D009474:Neurons / Q000502:physiology*; D010296:Parietal Lobe; D010507:Periodicity; D012677:Sensation; D014732:Vibration