title: Corrective jitter motion shows similar individual frequencies for the arm and the finger.
abstract: A characteristic of visuomotor tracking of non-regular oscillating stimuli are high-frequency jittery corrective motions, oscillating around the tracked stimuli. However, the properties of these corrective jitter responses are not well understood. For example, does the jitter response show an idiosyncratic signature? What is the relationship between stimuli properties and jitter properties? Is the jitter response similar across effectors with different inertial properties? To answer these questions, we measured participants' jitter frequencies in two tracking tasks in the arm and the finger. Thirty participants tracked the same set of eleven non-regular oscillating stimuli, vertically moving on a screen, once with forward-backward arm movements (holding a tablet stylus) and once with upward-downward index finger movements (with a motion tracker attached). Participants' jitter frequencies and tracking errors varied systematically as a function of stimuli frequency and amplitude. Additionally, there were clear individual differences in average jitter frequencies between participants, ranging from 0.7 to 1.15 Hz, similar to values reported previously. A comparison of individual jitter frequencies in the two tasks showed a strong correlation between participants' jitter frequencies in the finger and the arm, despite the very different inertial properties of the two effectors. This result suggests that the corrective jitter response stems from common neural processes.
authors: Department of Molecular Cell Biology, Weizmann Institute of Science, Rehovot, Israel.
authors: Lior
authors: L
authors: Noy
authors: Uri
authors: U
authors: Alon
authors: Jason
authors: J
authors: Friedman
mesh_terms: D000328:Adult; D000704:Analysis of Variance; D001132:Arm / Q000502:physiology*; D001696:Biomechanical Phenomena; D004558:Electric Stimulation; D056228:Feedback, Sensory / Q000502:physiology*; D005260:Female; D005385:Fingers / Q000502:physiology*; D006801:Humans; D008297:Male; D009038:Motion; D009068:Movement / Q000502:physiology*; D015999:Multivariate Analysis; D013223:Statistics as Topic
references: Exp Brain Res. 2006 Sep;173(4):742-50
references: 16604313
references: J Neurophysiol. 2000 Oct;84(4):1708-18
references: 11024063
references: J Neurophysiol. 2004 Feb;91(2):1050-63
references: 14561687
references: Neural Netw. 1998 Oct;11(7-8):1345-1356
references: 12662754
references: J Mot Behav. 1991 Dec;23(4):280-92
references: 14766510
references: Proc Natl Acad Sci U S A. 2011 Dec 27;108(52):20947-52
references: 22160696
references: Biol Cybern. 2006 May;94(5):409-14
references: 16570179
references: J Mot Behav. 1987 Mar;19(1):96-114
references: 23944915
references: Science. 2003 May 30;300(5624):1437-9
references: 12775842
references: Percept Psychophys. 2005 Feb;67(2):335-44
references: 15971695
references: J Cogn Neurosci. 2013 Sep;25(9):1418-27
references: 23574582
references: Brain Cogn. 2009 Mar;69(2):360-8
references: 18834653
references: Spat Vis. 1997;10(4):433-6
references: 9176952
references: J Cogn Neurosci. 2014 Sep;26(9):1966-80
references: 24564462
references: Neurosci Lett. 2012 Nov 7;529(2):144-9
references: 22914583
references: J Mot Behav. 2000 Jun;32(2):193-9
references: 11005948
references: J Mot Behav. 2010 Jan-Feb;42(1):29-36
references: 19906636
references: Exp Brain Res. 2006 Jun;172(1):77-84
references: 16424978
references: PLoS One. 2010 Aug 17;5(8):e12166
references: 20808907
references: Biol Cybern. 2011 Feb;104(1-2):31-51
references: 21327829
references: J Mot Behav. 1982 Mar;14(1):3-23
references: 15151886
references: J Exp Psychol Gen. 2007 Aug;136(3):414-29
references: 17696691
references: Biol Cybern. 1998 Apr;78(4):307-18
references: 9652080
references: J Cogn Neurosci. 1991 Summer;3(3):220-30
references: 23964837
references: Psychol Bull. 1967 Mar;67(3):202-13
references: 5341896
references: PLoS One. 2014 Feb 12;9(2):e87213
references: 24533054
references: Proc Natl Acad Sci U S A. 1999 Apr 13;96(8):4645-9
references: 10200316
references: Front Neural Circuits. 2013 Apr 04;7:51
references: 23576955
references: Q J Exp Psychol (Hove). 2010 Nov;63(11):2220-30
references: 20694920
references: Clin Neurophysiol. 2000 Apr;111(4):651-63
references: 10727916
references: Exp Brain Res. 2014 Nov;232(11):3525-33
references: 25059912
references: J Mot Behav. 2005 Sep;37(5):395-403
references: 16120566
references: Exp Brain Res. 2015 Apr;233(4):1307-20
references: 25630905
references: J Mot Behav. 1992 Sep;24(3):281-287
references: 12736133
references: Biophys J. 1968 Feb;8(2):252-302
references: 5639937
references: Exp Brain Res. 2009 Jul;196(4):497-509
references: 19521692
references: Behav Brain Res. 1986 May;20(2):185-201
references: 3730133
references: J Neurophysiol. 2013 Mar;109(5):1307-14
references: 23221416
references: Exp Brain Res. 2004 Jun;156(4):422-38
references: 15167977
references: J Mot Behav. 1993 Mar;25(1):53-63
references: 12730041
references: Front Comput Neurosci. 2013 Feb 28;7:12
references: 23450266
references: Ann N Y Acad Sci. 2002 Dec;978:302-17
references: 12582062
references: Biol Cybern. 2010 Jan;102(1):45-55
references: 19937068
references: Sci Rep. 2012;2:959
references: 23233878