The coordination patterns observed when two hands reach-to-grasp separate objects

What determines coordination patterns when both hands reach to grasp separate objects at the same time? It is known that synchronous timing is preferred as the most stable mode of bimanual coordination. Nonetheless, normal unimanual prehension behaviour predicts asynchrony when the two hands reach towards unequal targets, with synchrony restricted to targets equal in size and distance. Additionally, sufficiently separated targets require sequential looking. Does synchrony occur in all cases because it is preferred in bimanual coordination or does asynchrony occur because of unimanual task constraints and the need for sequential looking? We investigated coordinative timing when participants (n = 8) moved their right (preferred) hand to the same object at a fixed distance but the left hand to objects of different width (3, 5, and 7 cm) and grip surface size (1, 2, and 3 cm) placed at different distances (20, 30, and 40 cm) over 270 randomised trials. The hand movements consisted of two components: (1) an initial component (IC) during which the hand reached towards the target while forming an appropriate grip aperture, stopping at (but not touching) the object; (2) a completion component (CC) during which the finger and thumb closed on the target. The two limbs started the IC together but did not interact until the deceleration phase when evidence of synchronisation began to appear. Nonetheless, asynchronous timing was present at the end of the IC and preserved through the CC even with equidistant targets. Thus, there was synchrony but requirements for visual information ultimately yielded asynchronous coordinative timing.

[1]  S. Vogt,et al.  Multijoint grasping movements , 2001, Experimental Brain Research.

[2]  D Goodman,et al.  On the nature of human interlimb coordination. , 1979, Science.

[3]  Yong Li,et al.  Proprioceptive regulation of interlimb behavior: interference between passive movement and active coordination dynamics , 2001, Experimental Brain Research.

[4]  M. Jeannerod.  The neural and behavioural organization of goal-directed movements , 1990, Psychological Medicine.

[5]  M. Goodale,et al.  The effects of unilateral brain damage on visually guided reaching: hemispheric differences in the nature of the deficit , 2004, Experimental Brain Research.

[6]  G. Ermentrout.  Dynamic patterns: The self-organization of brain and behavior , 1997 .

[7]  M. Jeannerod.  The timing of natural prehension movements. , 1984, Journal of motor behavior.

[8]  D. Rosenbaum,et al.  Coordination of reaching and grasping by capitalizing on obstacle avoidance and other constraints , 1999, Experimental Brain Research.

[9]  R. Ivry,et al.  A Cognitive Neuroscience Perspective on Bimanual Coordination and Interference , 2004 .

[10]  Richard J. Jagacinski,et al.  A Dynamical Systems Approach to Manual Tracking Performance , 2000, Journal of motor behavior.

[11]  David R. Collins,et al.  Perceptual coupling in rhythmic movement coordination: stable perception leads to stable action , 2005, Experimental Brain Research.

[12]  W. Prinz,et al.  Perceptual basis of bimanual coordination , 2001, Nature.

[13]  A. Wing,et al.  Grasp size and accuracy of approach in reaching. , 1986, Journal of motor behavior.

[14]  M. Turvey,et al.  Phase transitions and critical fluctuations in the visual coordination of rhythmic movements between people. , 1990, Journal of experimental psychology. Human perception and performance.

[15]  Geoffrey P. Bingham,et al.  A Perceptually Driven Dynamical Model of Bimanual Rhythmic Movement (and Phase Perception) , 2004 .

[16]  G. E. Stelmach,et al.  Common organization for unimanual and bimanual reach-to-grasp tasks , 1997, Experimental Brain Research.

[17]  Geoffrey P. Bingham,et al.  A Perceptually Driven Dynamical Model of Rhythmic Limb Movement and Bimanual Coordination , 2001 .

[18]  Andrew D. Wilson,et al.  Human movement coordination implicates relative direction as the information for relative phase , 2005, Experimental Brain Research.

[19]  Umberto Castiello,et al.  The bilateral reach to grasp movement , 1993, Behavioural Brain Research.

[20]  M. Jeannerod,et al.  Selective perturbation of visual input during prehension movements , 1991, Experimental Brain Research.

[21]  C. MacKenzie,et al.  The speed-accuracy trade-off in manual prehension: effects of movement amplitude, object size and object width on kinematic characteristics , 2004, Experimental Brain Research.

[22]  J. Stahl,et al.  Amplitude of human head movements associated with horizontal saccades , 1999, Experimental Brain Research.

[23]  G E Stelmach,et al.  Stability of reach-to-grasp movement patterns in Parkinson's disease. , 1997, Brain : a journal of neurology.

[24]  Patrick Haggard,et al.  Coordinated responses following mechanical perturbation of the arm during prehension , 2004, Experimental Brain Research.

[25]  David R. Collins,et al.  The effect of frequency on the visual perception of relative phase and phase variability of two oscillating objects , 2001, Experimental Brain Research.

[26]  Wilfried Kunde,et al.  Goal congruency in bimanual object manipulation. , 2005, Journal of experimental psychology. Human perception and performance.

[27]  S. Jackson,et al.  Attention for action: coordinating bimanual reach-to-grasp movements. , 1999, British journal of psychology.

[28]  M. Santello,et al.  The role of vision on hand preshaping during reach to grasp , 2003, Experimental Brain Research.

[29]  J. Duysens,et al.  Neuro-Behavioral Determinants of Interlimb Coordination , 2004, Springer US.

[30]  J. Napier.  The prehensile movements of the human hand. , 1956, The Journal of bone and joint surgery. British volume.

[31]  D Goodman,et al.  On the coordination of two-handed movements. , 1979, Journal of experimental psychology. Human perception and performance.

[32]  Heiko Hecht,et al.  Theories of time-to-contact , 2004 .

[33]  S. Jackson,et al.  A Kinematic Analysis of Goal-directed Prehension Movements Executed under Binocular, Monocular, and Memory-guided Viewing Conditions , 1997 .

[34]  A. Wing,et al.  The Contribution of the Thumb to Reaching Movements , 1983, The Quarterly journal of experimental psychology. A, Human experimental psychology.

[35]  James R. Tresilian,et al.  A simple rule of thumb for elegant prehension , 2001, Current Biology.

[36]  M. Turvey,et al.  Phase transitions and critical fluctuations in the visual coordination of rhythmic movements between people. , 1990 .

[37]  R. H. Wimmers,et al.  Phase transitions in rhythmic tracking movements: A case of unilateral coupling , 1992 .

[38]  G P Bingham,et al.  Visual perception of the relative phasing of human limb movements , 1999, Perception & psychophysics.

[39]  M. Mon-Williams,et al.  When two eyes are better than one in prehension: monocular viewing and end-point variance , 2004, Experimental Brain Research.

[40]  E. Brenner,et al.  A new view on grasping. , 1999, Motor control.

[41]  James C Craig,et al.  Proprioceptive perception of phase variability. , 2003, Journal of experimental psychology. Human perception and performance.

[42]  R. Ivry,et al.  Moving to Directly Cued Locations Abolishes Spatial Interference During Bimanual Actions , 2001, Psychological science.

[43]  Geoffrey P. Bingham,et al.  Chapter 18 Another timing variable composed of state variables: Phase perception and phase driven oscillators , 2004 .

[44]  S. Riek,et al.  Bimanual aiming and overt attention: one law for two hands , 2003, Experimental Brain Research.

[45]  P. Matthews.  The neural and behavioural organisation of goal-directed movements by Marc Jeannerod, Clarendon Press, 1988. £32.50 (xi + 283 pages) ISBN 0 19 852117 0 , 1989, Trends in Neurosciences.

[46]  P. Fitts.  The information capacity of the human motor system in controlling the amplitude of movement. , 1954, Journal of experimental psychology.