Summary
Intraneural microstimulation within the median nerve of alert healthy subjects was used to evoke tactile sensations at threshold for conscious detection. The effect of movement on these sensations was studied by asking the subjects to estimate their magnitude before, during and after movement of the appropriate finger at different speeds. It was found that sensations of flutter and pressure were both attenuated by movement, as was the magnitude of spontaneous paraesthesiae. The degree of sensory inhibition correlated positively with speed of movement and was comparable to the previously reported reduction in cortical somatosensory evoked potentials by movement, using suprathreshold stimuli. These results indicate that (i) movement inhibits tactile sensations of different qualities, (ii) such inhibition is velocity-dependent, and (iii) threshold sensations are amenable to central modulation short of their abolition. It is likely that the mechanisms of inhibition of exteroceptive inputs during movement are contingent upon the character of the sensory stimulus and the nature of the motor task.
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References
Abbruzzese G, Ratto S, Favale E, Abbruzzese M (1981) Pro-prioceptive modulation of somatosensory evoked potentials during active or passive finger movements in man. J Neurol Neurosurg Psychiatr 44: 942–949
Angel RW, Malenka RC (1982) Velocity-dependent suppression of cutaneous sensitivity during movement. Exp Neurol 72: 266–274
Angel RW, Boylls CC, Weinrich M (1984) Cerebral evoked potentials and somatosensory perception. Neurology 34: 123–126
Bystrzycka E, Nail, BS, Rowe, M (1977) Inhibition of cuneate neurones: its afferent source and influence on dynamically sensitive ‘tactile’ neurones. J Physiol (Lond) 268: 251–270
Chapin JK, Woodward DJ (1982) Somatic sensory transmission to the cortex during movement: gating of single cell responses to touch. Exp Neurol 78: 654–669.
Cohen LG, Starr A (1985) Vibration and muscle contraction affect somatosensory evoked potentials. Neurology 35: 691–698
Coquery J-M (1978) Role of active movement in control of afferent input from skin in cat and man. In: Gordon G (ed) Active touch. Pergamon Press, Oxford New York, pp 161–169
Coquery J-M, Coulmance M, Leron M-C (1972) Modifications des potentiels évoqués corticaux somesthésiques durant des mouvements actifs et passifs chez l'homme. Electroencephalogr Clin Neurophysiol 33: 269–276
Fromm C, Evarts EV (1978) Motor cortex responses to kinesthetic inputs during postural stability, precise fine movements and ballistic movements in the conscious monkey. In: Gordon G (ed) Active touch. Pergamon Press, Oxford New York, pp 105–118
Garland HT, Angel RW (1974) Modulation of tactile sensitivity during movement. Neurology 24: 361
Giblin DR (1964) Somatosensory evoked potentials in healthy subjects and in patients with lesions of the nervous system. Ann NY Acad Sci112: 93–142
Hulliger M, Nordh E, Thelin A-E, Vallbo ÅB (1979) The responses of afferent fibres from the glabrous skin of the hand during voluntary finger movements in man. J Physiol (Lond) 291: 233–249
Johansson RS, Vallbo ÅB (1979) Detection of tactile stimuli: thresholds of afferent units related to psychophysical thresholds in the human hand. J Physiol (Lond) 297: 405–422
Laskin SE, Spencer WA (1979) Cutaneous masking. I. Psychophysical observations on interactions of multipoint stimuli in man. J Neurophysiol 42: 1048–1060
Moberg E (1983) The role of cutaneous afferents in position sense, kinaesthesia, and motor function of the hand. Brain 106: 1–19
Ochoa J, Torebjörk E (1983) Sensations evoked by intraneural microstimulation of single mechanoreceptor units innervating the human hand. J Physiol (Lond) 342: 633–654
Papakostopoulos D, Cooper R, Crow HJ (1975) Inhibition of cortical evoked potentials and sensation by selfinitiated movement in man. Nature 258: 321–324
Rauch R, Angel RW, Boylls CC (1985) Velocity-dependent suppression of somatosensory evoked potentials during movement. Electroencephalogr Clin Neurophysiol 62: 421–425
Rushton DN, Rothwell, JC, Craggs MD (1981) Gating of somato-sensory evoked potentials during diiferent kinds of movement in man. Brain 104: 465–491
Seyal M, Ortstadt JL, Kraft LW, Gabor AJ (1987) Effect of movement on human spinal and subcortical somatosensory evoked potentials. Neurology 37: 650–655
Schady WJL, Torebjörk HE (1983) Projected and receptive fields: a comparison of projected areas of sensations evoked by intraneural stimulation of mechanoreceptive units, and their innervation territories. Acta Physiol Scand 119: 267–275
Schmidt RF, Torebjörk HE, Schady WJL (1989) Gating of tactile input from the hand. II. Effects of remote movements and anaesthesia. Exp Brain Res 79:103–108
Stevens SS (1975) Psychophysics: introduction to its perceptual, neural and social prospects. Wiley, New York
Torebjörk HE, Ochoa JL (1980) Specific sensations evoked by activity in single identified sensory units in man. Acta Physiol Scand 110: 445–447
Torebjörk HE, Vallbo ÅB, Ochoa JL (1987) Intraneural microstimulation in man. Brain 110: 1509–1529
Vallbo ÅB, Olsson KÅ, Westberg K-G, Clark FJ (1984) Microstimulation of single tactile afferents from the human hand: sensory attributes related to unit type and properties of receptive fields. Brain 107: 727–749
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Schmidt, R.F., Schady, W.J.L. & Torebjörk, H.E. Gating of tactile input from the hand. Exp Brain Res 79, 97–102 (1990). https://doi.org/10.1007/BF00228877
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DOI: https://doi.org/10.1007/BF00228877