Encyclopedia of Computational Neuroscience

Living Edition
| Editors: Dieter Jaeger, Ranu Jung

Somatosensory Cortex: Neural Coding of Motion

  • Yu-Cheng PeiEmail author
Living reference work entry
DOI: https://doi.org/10.1007/978-1-4614-7320-6_383-1



The tactile perception of motion involves the perception of movement of an object across the skin. Neural processing in the somatosensory cortex transforms the information originating from populations of afferents into a percept of the direction and speed of the tactile motion.

Detailed Description

Two Sources of Tactile Motion Information

The perception of tactile motion is thought to rely on two types of signals at the somatosensory periphery: the sequential activation of slowly adapting type 1 (SA1) (Johansson and Vallbo 1979) and rapidly adapting (RA) afferents (Kirman 1974; Sherrick and Rogers 1966) as an object moves across the skin and the activation of slowly adapting type 2 (SA2) afferents (Olausson et al. 2000) caused by friction-induced skin stretch resulting from motion (Olausson and Norrsell 1993).

Direction Tuning Emerged in the Primary Somatosensory Cortex

SA1 and RA afferents encode...

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  1. Bensmaia SJ, Killebrew JH, Craig JC (2006) The influence of visual motion on tactile motion perception. J Neurophysiol 96(3):1625–1637PubMedCentralPubMedCrossRefGoogle Scholar
  2. Costanzo RM, Gardner EP (1980) A quantitative analysis of responses of direction-sensitive neurons in somatosensory cortex of awake monkeys. J Neurophysiol 43:1319–1341PubMedGoogle Scholar
  3. Depeault A, Meftah E-M, Chapman CE (2008) Tactile speed scaling: contributions of time and space. J Neurophysiol 99(3):1422–1434PubMedCrossRefGoogle Scholar
  4. Depeault A, Meftah EM, Chapman CE (2013) Neuronal correlates of tactile speed in primary somatosensory cortex. J Neurophysiol 110(7):1554–1566PubMedCrossRefGoogle Scholar
  5. Essick GK, Franzén O, Whitsel BL (1988) Discrimination and scaling of velocity of stimulus motion across the skin. Somatosens Motor Res 6:21–40CrossRefGoogle Scholar
  6. Gardner EP, Costanzo RM (1980) Neuronal mechanisms underlying direction sensitivity of somatosensory cortical neurons in awake monkeys. J Neurophysiol 43:1342–1354PubMedGoogle Scholar
  7. Johansson RS, Vallbo B (1979) Tactile sensibility in the human hand: relative and absolute densities of four types of mechanoreceptive units in glabrous skin. J Physiol 286:283–300PubMedCentralPubMedGoogle Scholar
  8. Kirman JH (1974) Tactile apparent movement: the effects of interstimulus onset interval and stimulus duration. Percept Psychophys 15:1–6CrossRefGoogle Scholar
  9. Olausson H, Norrsell U (1993) Observations on human tactile directional sensibility. J Physiol 464:545–559PubMedCentralPubMedGoogle Scholar
  10. Olausson H, Wessberg J, Kakuda N (2000) Tactile directional sensibility: peripheral neural mechanisms in man. Brain Res 866:178–187PubMedCrossRefGoogle Scholar
  11. Pei YC, Hsiao SS, Bensmaia SJ (2008) The tactile integration of local motion cues is analogous to its visual counterpart. Proc Natl Acad Sci USA 105:8130–8135PubMedCentralPubMedCrossRefGoogle Scholar
  12. Pei YC, Hsiao SS, Craig JC, Bensmaia SJ (2010) Shape invariant coding of motion direction in somatosensory cortex. PLoS Biol 8:e1000305PubMedCentralPubMedCrossRefGoogle Scholar
  13. Pei YC, Hsiao SS, Craig JC, Bensmaia SJ (2011) Neural mechanisms of tactile motion integration in somatosensory cortex. Neuron 69:536–547PubMedCentralPubMedCrossRefGoogle Scholar
  14. Ruiz S, Crespo P, Romo R (1995) Representation of moving tactile stimuli in the somatic sensory cortex of awake monkeys. J Neurophysiol 73:525–537PubMedGoogle Scholar
  15. Sherrick CE, Rogers R (1966) Apparent haptic movement. Percept Psychophys 1:175–180CrossRefGoogle Scholar
  16. Warren S, Hämäläinen HA, Gardner EP (1986) Objective classification of motion- and direction-sensitive neurons in primary somatosensory cortex of awake monkeys. J Neurophysiol 56:598–622PubMedGoogle Scholar
  17. Werner G, Whitsel BL (1970) Stimulus feature detection by neurons in somatosensory areas I and II of primates. IEEE Trans Man Mach Syst 11:36–38CrossRefGoogle Scholar
  18. Whitsel BL, Roppolo JR, Werner G (1972) Cortical information processing of stimulus motion on primate skin. J Neurophysiol 35:691–717PubMedGoogle Scholar

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© Springer Science+Business Media New York 2013

Authors and Affiliations

  1. 1.Chang Gung Memorial Hospital and UniversityTaoyuan CountyTaiwan