Dynamic and Static Fusimotor Set in Various Behavioural Contexts

  • A. Prochazka
  • M. Hulliger
  • P. Trend
  • N. Dürmüller


The way in which readiness, intent and attitude affect motor responses to stimuli has been studied systematically by psychologists for over a century (rev: Gibson, 1941; Boring, 1957; Watson, 1963). Ach (1905) and Watt (1905) coined the term “Einstellung” (transl: attitude, set) for the brain processes underlying such phenomena. Since the late 1940’s, neurophysiologists have increasingly encountered neural behaviour consistent with the notion of set: task-dependent unitary discharge has been observed in the sensorimotor cortex (Evarts et al., 1984, premotor cortex (Mauritz & Wise, 1986), and association cortex (Mountcastle et al., 1975), and evidence for context-related transmission has been adduced for medial lemniscus (Ghez & Pisa, 1972) and spinal cord (Gurfinkel & Kots, 1966; Requin & Paillard, 1971).


Supplementary Motor Area Muscle Spindle Voluntary Movement Premotor Cortex Medial Lemniscus 
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  1. Ach, N., 1905, “Über die Willenstätigkeit und das Denken” Göttingen.Google Scholar
  2. Andersson, S., & Gernandt, B.E., 1956, Ventral root discharge in response to vestibular and proprioceptive stimulation. J. Neurophvsiol., 19: 524.Google Scholar
  3. Appelberg, B., 1962, The effect of electrical stimulation in nucleus ruber on the response to stretching primary and secondary muscle spindle afferents, Acta Physiol. Scand., 56: 140.PubMedCrossRefGoogle Scholar
  4. Appelberg, B., 1963, Central control of extensor muscle spindle dynamic sensitivity. Life Sciences, 9: 706.PubMedCrossRefGoogle Scholar
  5. Appelberg, B., 1981, Selective central control of dynamic gamma motoneurones utilised for the functional classification of gamma cells, in: “Muscle Receptors and Movement”, A. Taylor & A. Prochazka, eds., Macmillan, London.Google Scholar
  6. Appenteng, K., Morimoto, T., & Taylor, A., 1980, Fusimotor activity in masseter nerve of the cat during reflex jaw movements, J. Physiol., 305: 415.PubMedGoogle Scholar
  7. Bergmans, J., & Grillner, S., 1969, Reciprocal control of spontaneous activity and reflex effects in static and dynamic ˠ-motoneurones revealed by an injection of DOPA, Acta Physiol. Scand., 77: 106.PubMedCrossRefGoogle Scholar
  8. Boring, E.G., 1957, “A History of Experimental Psychology. 2nd Ed.,” Appleton-Century-Crofts, New York.Google Scholar
  9. Brinkman, C., & Porter, R., 1983, Supplementary motor area and premotor area of money cerebral cortex: functional organization and activities of single neurons during performance of a learned movement, in “Motor Control Mechanisms in Health and Disease”, J.E. Desmedt, ed. Raven Press, New York.Google Scholar
  10. Brooks, V.B., 1984, The cerebellum and adaptive tuning of movements, Exp. Brain Res., Suppl. 9: 170.Google Scholar
  11. Cody, F.W.J., Harrison, L.M., & Taylor, A., 1975, Analysis of the activity of muscle spindles of the jaw-closing muscles during normal movements in the cat. J. Physiol., 253: 565.PubMedGoogle Scholar
  12. Corda, M., Euler, C.V., & Lennerstrand, G., 1966, Reflex and cerebellar influences on α and “rhythmic” and “tonic” activity in the intercostal muscle, J. Physiol. 184: 898.PubMedGoogle Scholar
  13. Coulter, J.D, 1974, Sensory transmission through lemniscal pathway during voluntary movement in the cat, J. Neurophysiol., 37: 831.PubMedGoogle Scholar
  14. Evarts E.V., & Fromm, C., 1977, Sensory responses in motor cortex neurons during precise motor control, Neuroscience Letters, 5: 267.PubMedCrossRefGoogle Scholar
  15. Evarts E.V., Shinoda, Y., & Wise, S.P., 1984, “Neurophysiological Approaches to Higher Brain Functions,” John Wiley, New York.Google Scholar
  16. Gandevia, S., & Burke, D., 1985, Effect of training on voluntary activation of human fusimotor neurons. J. Neurophysiol., 54: 1422.PubMedGoogle Scholar
  17. Ghez, C., & Lenzi, G.L., 1971, Modulation of sensory transmission in cat lemniscal system during voluntary movement, Pflügers Arch. ges. Physiol., 323: 273.CrossRefGoogle Scholar
  18. Ghez, C., & Pisa, M., 1972, Inhibition of afferent transmission in cuneate nucleus during voluntary movement in the cat, Brain Res., 40: 145.PubMedCrossRefGoogle Scholar
  19. Gibson, J.J. (1941) A critical review of the concept of set in contemporary experimental psychology. Psychol. Bull., 38: 781.CrossRefGoogle Scholar
  20. Goodwin, G.M., & Luschei, E.S., 1975, Discharge of spindle afferents from jaw-closing muscles during chewing in alert monkeys, J. Neurophysiol., 38, 560.PubMedGoogle Scholar
  21. Granit, R., 1955, “Receptors and Sensory Perception,” Yale University Press, New Haven.Google Scholar
  22. Granit, R., 1979, Interpretation of supraspinal effects on the gamma system, in: “Reflex Control of Posture and Movement”. Progr. Brain Res., 50, Elsevier, Amsterdam.Google Scholar
  23. Granit, R., & Kaada, B. R., 1952, Influence of stimulation of central nervous structures on muscle spindles in cat, Acta Physiol. Scand. 27: 130.PubMedCrossRefGoogle Scholar
  24. Granit, R., Holmgren, B., & Merton, P.A., 1955, The two routes for excitation of muscle and their subservience to the cerebellum, J. Physiol. 130: 213.PubMedGoogle Scholar
  25. Greer, J.J., & Stein, R.B. (1986), Tonic and phasic activity of gamma motoneurons during respiration in the cat. Society for Neuroscience Abstracts 12, 683.Google Scholar
  26. Gregory, J.E., Prochazka, A., & Proske, U., 1977, Responses of muscle spindles to stretch after a period of fusimotor activity compared in freely moving and anaesthetised cats, Neuroscience Letters 4: 67.PubMedCrossRefGoogle Scholar
  27. Griffiths, R.I., & Hoffer, J.A., 1987, Muscle fibres shorten when the whole muscle is being stretched in the ‘yield’ phase of the freely walking cat. Soc. Neurosci. Abstr. In Press.Google Scholar
  28. Grillner, S., Hongo, T., & Lund, S., 1969, Descending monosynaptic and reflex control of ˠ-motoneurones, Acta Physiol. Scand. 75: 592.PubMedCrossRefGoogle Scholar
  29. Gurfinkel, V.S., & Kots, Y.M., 1966, Dvigatelnaya prednastroyka o cheloveka. in: “Nervyn Mekanismy Dvigatelnoi Deyatelnosty,” Akademia Nauk, SSSR.Google Scholar
  30. Hagbarth, K.-E., 1981, Fusimotor and stretch reflex functions studied in recordings from muscle spindle afferents in man, in: “Muscle Receptors and Movement”. A. Taylor, & A. Prochazka, eds. Macmilan, London.Google Scholar
  31. Hulliger, M., Horber, F., Medved, A., & Prochazka, A., 1987, An experimental simulation method for iterative and interactive reconstruction of unknown (fusimotor) inputs contributing to known (spindle afferent) responses, J. Neurosci. Methods, In Press.Google Scholar
  32. Hulliger, M., & Prochazka, A. (1983) A new simulation method to deduce fusimotor activity from afferent discharge recorded in freely moving cats. J. Neurosci. Methods. 8: 197.PubMedCrossRefGoogle Scholar
  33. Kots, Y.M., 1977, “The Organization of Voluntary Movement”, Plenum, New York.Google Scholar
  34. Larson, C.R., Smith, A., & Luschei, E.S., 1981, Discharge characteristics and stretch sensitivity of jaw muscle afferents in the monkey during controlled isometric bites. J. Neurophysiol., 46: 130.PubMedGoogle Scholar
  35. Leinonen, L. (1980) Functional properties of neurones in the posterior part of area 7 in awake monkeys. Acta Physiologica Scandinavica, 108: 301PubMedCrossRefGoogle Scholar
  36. Loeb, G.E., 1984, The control and responses of mammalian muscle spindles during normally executed motor tasks, Exercise Sport Sci. Rev., 12: 158.CrossRefGoogle Scholar
  37. Loeb, G.E., & Duysens, J., 1979, Activity patterns in individual hindlimb primary and secondary muscle spindle afferents during normal movements in unrestrained cats. J. Neurophysiol., 42: 420.PubMedGoogle Scholar
  38. Loeb, G.E., Hoffer, J.A., & Pratt, C.A., 1985a, Activity of spindle afferents from cat anterior thigh muscles. I. Identification and patterns during normal locomotion. J. Neurophysiol., 54: 549.PubMedGoogle Scholar
  39. Loeb, G.E., & Hoffer, J.A., 1985b, Activity of spindle afferents from cat anterior thigh muscles. II. Effects of fusimotor blockade. J. Neurophysiol., 54: 565.PubMedGoogle Scholar
  40. Loeb, G.E., Hoffer, J.A., & Marks, W.B., 1985c, Activity of spindle afferents from cat anterior thigh muscles. III. Effects of external stimuli, J. Neurophvsiol., 54: 578.Google Scholar
  41. MacKay, W.A., & Crammond, D.J., 1987, Neuronal correlates in posterior parietal lobe of the expectation of events, Behav. Brain Res. 24, 167.PubMedCrossRefGoogle Scholar
  42. Macpherson, J.M., Rasmusson, D.D., & Murphy, J.T, 1980, Activities of neurons in “motor” thalamus during control of limb movement in the primate, J. Neurophvsiol., 44: 11.Google Scholar
  43. Martin, J.H., & Ghez, C., 1985, Task-related coding of stimulus and response in cat motor cortex, Exp. Brain Res. 57: 427.PubMedCrossRefGoogle Scholar
  44. Mauritz, K.-H., & Wise, S.P., 1986, Premotor cortex of the rhesus monkey: neuronal activity in anticipation of predictable environmental events, Exp. Brain Res., 61: 229.PubMedCrossRefGoogle Scholar
  45. Mountcastle, V.B., Lynch, J.C., Georgopoulos, A., Sakata, H., & Acuna, C., 1975, Posterior parietal association cortex of the monkey: command functions for operations within extrapersonal space, J. Neurophysiol., 38: 871.PubMedGoogle Scholar
  46. Neafsey, E.J., Hull, C.D., & Buchwald, N.A., 1978, Preparation for movement in the cat. II. Unit activity in the basal ganglia and thalamus, Electroenceph. clin. Neurophysiol., 44: 714.PubMedCrossRefGoogle Scholar
  47. Poppele, R., 1967, Responses of gamma and alpha motor systems to phasic and tonic vestibular inputs, Brain Res., 6: 535.PubMedCrossRefGoogle Scholar
  48. Prochazka, A., 1983, The uncoupling of alpha and of static and dynamic fusimotor activity in the cat: fusimotor “set”, Proc. Internat. Union Physiol. Sci. 15: 12.Google Scholar
  49. Prochazka, A., & Hulliger, M., 1983, Muscle afferent function and its significance for motor control mechanisms during voluntary movements in cat, monkey and man, in: “Motor Control Mechanisms in Health and Disease” J.E. Desmedt, ed., Raven, New York.Google Scholar
  50. Prochazka, A., Hulliger, M., Zangger, P., & Appenteng, K., 1985, “Fusimotor set”: new evidence for α-independent control of ˠ-motoneurones during movement in the awake cat, Brain Res., 339: 136.PubMedCrossRefGoogle Scholar
  51. Prochazka, A., Stephens, J.A., & Wand, P., 1979, Muscle spindle discharge in normal and obstructed movements, J. Phvsiol., 287: 57.Google Scholar
  52. Prochazka, A., & Wand, P., 1981, Independence of fusimotor and skeletomotor systems during voluntary movement, in: “Muscle Receptors and Movement” A. Taylor, & A. Prochazka, eds. Macmillan, London.Google Scholar
  53. Prochazka, A., Westerman, R.A., & Ziccone, S.P., 1975, Spindle units recorded during voluntary hindlimb movements in the cat, Proc. Austral. Physiol. Pharmacol. Soc., 6: 101.Google Scholar
  54. Prochazka, A., Westerman, R.A., & Ziccone, S, 1976, Discharges of single hindlimb afferents in the freely moving cat, J. Neurophysiol., 39: 1090.PubMedGoogle Scholar
  55. Prochazka, A., Westerman, R.A., & Ziccone, S., 1977, Ia afferent activity during a variety of voluntary movements in the cat, J. Phvsiol., 268: 423.Google Scholar
  56. Requin, J., 1985, Looking forward to moving soon: ante factum selective processes in motor control. in: “Attention and Motor Performance XI”, M.I. Posner, & O.S.M. Marin, eds., Lawrence Erlbaum Assoc. Inc., Hillsdale, New Jersey.Google Scholar
  57. Requin, J., & Paillard, J., 1971, Depression of monosynaptic reflexes as a specific aspect of preparatory motor set in visual reaction time, in: “Visual Information Processing and Control of Motor Activity”. Bulgarian Academy of Sciences, Sofia.Google Scholar
  58. Ribot, E., Roll, J.-P., & Vedel, J.-P., 1986, Efferent discharges recorded from single skeletomotor and fusimotor fibres in man, J. Phvsiol., 375,: 251.Google Scholar
  59. Scheirs, J.G.M., & Brunia, C.H.M., 1985, Achilles tendon reflexes and surface EMG activity during anticipation of a significant event and preparation for a voluntary movement, J. Motor Behav., 17: 96.Google Scholar
  60. Sears, T.A., 1964, Efferent discharges in alpha and fusimotor fibres of intercostal nerves of the cat, J. Physiol., 174: 295.PubMedGoogle Scholar
  61. Strick, P.L., 1976, Activity of ventrolateral thalamic neurons during arm movement, J. Neurophysiol., 39: 1032.PubMedGoogle Scholar
  62. Tanji, J., 1976, Selective activation of neurons in cortical area 3a associated with accurate maintenance of limb positions, Brain Res., 115, 328.PubMedCrossRefGoogle Scholar
  63. Tanji, J., & Kurata, K., 1983, Functional organization of the supplementary motor area, in: “Motor Control Mechanisms in Health and Disease”, J.E. Desmedt, ed., Raven, New York.Google Scholar
  64. Taylor, A., & Cody, F.W.J., 1974, Jaw muscle spindle activity in the cat during normal movements of eating and drinking, Brain Res., 71: 523.PubMedCrossRefGoogle Scholar
  65. Taylor, J., Stein, R.B., & Murphy, P.R., 1985, Impulse rates and sensitivity to stretch of soleus muscle spindle afferent fibres during locomotion in premammillary cats. J. Neurophysiol. 53: 341.PubMedGoogle Scholar
  66. Watson, R.I., 1963, “The Great Psychologists. From Aristotle to Freud”, Lippincott, Philadelphia.Google Scholar
  67. Watt, H.J., 1905, Experimentelle Beiträge zu einer Theorie des Denkens, Arch. ges. Psychol., 4: 289.Google Scholar

Copyright information

© Springer Science+Business Media New York 1988

Authors and Affiliations

  • A. Prochazka
    • 1
  • M. Hulliger
    • 2
  • P. Trend
    • 3
  • N. Dürmüller
    • 2
  1. 1.University of AlbertaEdmontonCanada
  2. 2.Brain Research InstituteZürichSwitzerland
  3. 3.St. Thomas’s Hospital LondonUK

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