The present study investigated the effects of two-dimensional arm stiffness and muscle effort required to maintain horizontal arm posture on position-reproduction errors. 12 participants performed a multi-joint position-reproduction task without visual feedback. They were required to indicate a proprioceptively remembered target position with the fingertip of the ipsilateral arm. The results showed that both constant and variable errors were larger in the direction of lower stiffness rather than in the direction of higher stiffness in the stiffness ellipse. In the condition where participants' arm was supported during position perception, variable error was larger than when it was vertically unsupported. These results suggested that proprioceptive accuracy and precision are positively related to the axis length of elliptically represented arm stiffness, and that exerting muscle effort to maintain the arm against the force of gravity may be supportive of human proprioceptive mechanisms.
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References
1.
AllenT.AnsemsG. E.ProskeU. (2007) Effects of muscle conditioning on position sense at the human forearm during loading or fatigue of elbow flexors and the role of the sense of effort. Journal of Physiology, 580, 423–434.
2.
AnsemsG. E.AllenT. J.ProskeU. (2006) Position sense at the human forearm in the horizontal plane during loading and vibration of elbow muscles. Journal of Physiology, 576, 445–455.
3.
BurdetE.OsuR.FranklinD. W.MilnerT. E.KawatoM. (2001) The central nervous system stabilizes unstable dynamics by learning optimal impedance. Nature, 414, 446–449.
4.
BurkeD.HagbarthK. E.LofstedtL.WallinB. G. (1976) The responses of human muscle spindle endings to vibration of non-contracting muscles. Journal of Physiology, 261, 695–711.
5.
CareyI. M.OkeL. E.MatyasT. (1996) Impaired limb position sense after stroke: A quantitative test for clinical use. Archives of Physical Medicine and Rehabilitation, 77, 1271–1278.
6.
DarainyM.MalfaitN.GribbleP. L.TowhidkhahF.OstryD. (2004) Learning to control arm stiffness under static conditions. Journal of Neurophysiology, 92, 3344–3350.
7.
DukelowS. P.HerterT. M.MooreK. D.DemersM. J.GlasgowJ. I.BaggS. D.NormanK. E.ScottS. H. (2010) Quantitative assessment of limb position sense following stroke. Neurorehabilitation and Neural Repair, 24, 178–187.
8.
FranklinD. W.MilnerT. E. (2003) Adaptive control of stiffness to stabilize hand position with large loads. Experimental Brain Research, 152, 211–220.
9.
GandeviaS. C.McCloskeyD. I.BurkeD. (1992) Kinaesthetic signals and muscle contraction. Trends in Neurosciences, 15, 62–65.
10.
GandeviaS. C.SmithJ. L.MatthewC.ProskeU.TaylorJ. L. (2006) Motor commands contribute to human position sense. Journal of Physiology, 571, 3703–3710.
11.
GobleD. J.BrownS. H. (2010) Upper limb asymmetries in the perception of proprioceptively determined dynamic position sense. Journal of Experimental Psychology: Human Perception and Performance, 36, 768–775.
12.
GomiH.OsuR. (1998) Task-dependent viscoelasticity of human multijoint arm and its spatial characteristics for interaction with environments. Journal of Neuroscience, 18, 8965–8978.
13.
GoodwinG. M.McCloskeyD. I.MatthewsP. B. (1972a) Proprioceptive illusions induced by muscle vibration: Contribution by muscle spindles to perception?Science, 24, 1382–1384.
14.
GoodwinG. M.McCloskeyD. I.MatthewsP. B. (1972b) The contribution of muscle afferents to kinaesthesia shown by vibration induced illusions of movement and by the effects of paralysing joint afferents. Brain, 95, 705–748.
15.
GribbleP. L.MullinL. I.CothrosN.MattarA. (2003) Role of cocontraction in arm movement accuracy. Journal of Neurophysiology, 89, 2396–2405.
16.
GritsenkoV.KrouchevN. I.KalaskaJ. F. (2007) Afferent input, efference copy, signal noise, and biases in perceptions of joint angle during active versus passive elbow movements. Journal of Neurophysiology, 98, 1140–1154.
17.
JonesA. A. H.CressmanE. K.HenriquesD. Y. P. (2010) Proprioceptive localization of the left and right hands. Experimental Brain Research, 204, 373–383.
18.
KamimuraN.OsuR.IwasakiH.NakanoE.HarrisC. M.WadaY.KawatoM. (2003) Tradeoff between task optimization and energy consumption: Selecting appropriate stiffness. Technical Report of the Institute of Electronics, Information, and Communication Engineers, 103, 37–42.
19.
KelsoJ. A. (1977) Planning and efferent components in the coding of movement. Journal of Motor Behavior, 9, 33–47.
20.
LauferY.HochermanS.DicksteinR. (2001) Accuracy of reproducing hand position when using active compared with passive movement. Physiotherapy Research International, 6, 65–75.
21.
McCloskeyD. I.EbelingP.GoodwinG. M. (1974) Estimation of weights and tensions and apparent involvement of a “sense of effort.”Experimental Neurology, 42, 220–232.
22.
Mussa-IvaldiF. A.HoganN.BizziE. (1985) Neural, mechanical and geometric factors subserving arm posture in humans. Journal of Neuroscience, 5, 2732–2743.
23.
NonakaR.SatoM.KoikeY. (2004) Speed-accuracy trade-off from the point of view of muscle activity. The Journal of the Institute of Electronics, Information, and Communication Engineers, J87-D2, No. 4, 1008–1019.
24.
OsuR.GomiH. (1999) Multijoint muscle regulation mechanisms examined by measured human arm stiffness and EMG signals. Journal of Neurophysiology, 81, 1458–1468.
25.
PaillardJ.BrouchonM.A. (1974) Proprioceptive contribution to the spatial encoding of position cues for ballistic movements. Brain Research, 71, 273–284.
26.
ProskeU. (2005) What is the role of muscle receptors in proprioception?Muscle and Nerve, 31, 780–787.
27.
Ribot-CiscarE.RollJ. P. (1998) Ago-antagonist muscle spindle inputs contribute together to joint movement coding in man. Brain Research, 791, 167–176.
28.
Rincon-GonzalezL.BuneoC. A.TilleryHelms S. I. (2011) The proprioceptive map of the arm is systematic and stable, but idiosyncratic. PLoS ONE, 6, e25214.
29.
RollJ. P.VedelJ. P. (1982) Kinaesthetic role of muscle afferents in man, studied by tendon vibration and microneurography. Experimental Brain Research, 47, 177–190.
30.
StelmachG. E.KelsoJ. A.WallaceS. A. (1975) Preselection in short-term motor memory. Journal of Experimental Psychology: Human Learning and Memory, 1, 745–755.
31.
VallboA. B. (1974) Afferent discharge from human muscle spindles in noncontracting muscles. Acta Physiologica Scandinavica, 90, 303–318.
32.
van BeersR. J.SittigA. C.van der GonDenier J. J. (1998) The precision of proprioceptive position sense. Experimental Brain Research, 122, 367–377.
33.
VindrasP.VivianiP. (1998) Frames of reference and control parameters in visuomanual pointing. Journal of Experimental Psychology, Human Perception, and Performance, 24, 569–591.
34.
WalshL. D.AllenT. J.GandeviaS. C.ProskeU. (2006) Effect of eccentric exercise on position sense at the human forearm in different postures. Journal of Applied Physiology, 100, 1109–1116.
35.
WilsonE. T.WongJ.GribbleP. L. (2010) Mapping proprioception across a 2D horizontal workspace. PLoS ONE, 5, ell851.
36.
WinterJ. A.AllenT. J.ProskeU. (2005) Muscle spindle signals combine with the sense of effort to indicate limb position. Journal of Physiology, 568, 1035–1046.
