Abstract:
:We offer a hypothesis on the organization of multi-effector motor synergies and illustrate it with the task of force production with a set of fingers. A physical metaphor, a leaking bucket, is analyzed to demonstrate that an inanimate structure can show apparent error compensation among its elements. A neural model is developed using tunable back-coupling loops as means of assuring error compensation in a task-specific way. The model demonstrates non-trivial features of multi-finger interaction such as delayed emergence of force stabilizing synergies and simultaneous stabilization of the total force and total moment produced by the fingers. The hypothesis suggests that neurophysiological structures involving short-latency feedback may play a central role in the formation of motor synergies.
journal_name
Biol Cybernjournal_title
Biological cyberneticsauthors
Latash ML,Shim JK,Smilga AV,Zatsiorsky VMdoi
10.1007/s00422-005-0548-0keywords:
subject
Has Abstractpub_date
2005-03-01 00:00:00pages
186-91issue
3eissn
0340-1200issn
1432-0770journal_volume
92pub_type
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