Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Przeglądasz jako GOŚĆ
Tytuł pozycji:

Flexible representations of dynamics are used in object manipulation.

Tytuł :
Flexible representations of dynamics are used in object manipulation.
Autorzy :
Ahmed AA; Computational and Biological Learning Lab, Department of Engineering, University of Cambridge, Cambridge CB2 1PZ, United Kingdom.
Wolpert DM; Computational and Biological Learning Lab, Department of Engineering, University of Cambridge, Cambridge CB2 1PZ, United Kingdom.
Flanagan JR; Department of Psychology and Centre for Neuroscience Studies, Queen's University, Kingston, Ontario K7L 3N6, Canada. Electronic address: .
Pokaż więcej
Źródło :
Current biology : CB [Curr Biol] 2008 May 20; Vol. 18 (10), pp. 763-768.
Typ publikacji :
Journal Article; Research Support, Non-U.S. Gov't
Język :
English
Imprint Name(s) :
Publication: Cambridge, MA : Cell Press
Original Publication: London, UK : Current Biology Ltd., c1991-
MeSH Terms :
Arm/*physiology
Brain/*physiology
Learning/*physiology
Psychomotor Performance/*physiology
Adolescent ; Adult ; Biomechanical Phenomena ; Female ; Humans ; Male ; Motor Activity/physiology
References :
Curr Opin Neurobiol. 1999 Dec;9(6):718-27. (PMID: 10607637)
Curr Biol. 2006 Dec 19;16(24):2440-5. (PMID: 17174919)
Proc Natl Acad Sci U S A. 2000 Feb 29;97(5):2259-63. (PMID: 10681435)
J Neurosci. 2000 Oct 15;20(20):7807-15. (PMID: 11027245)
Nature. 2000 Oct 12;407(6805):742-7. (PMID: 11048720)
Nat Neurosci. 2000 Nov;3 Suppl:1212-7. (PMID: 11127840)
Neuron. 2001 May;30(2):593-607. (PMID: 11395017)
Curr Biol. 2001 Sep 18;11(18):R729-32. (PMID: 11566114)
Nature. 2002 Jun 27;417(6892):938-41. (PMID: 12087402)
J Neurosci. 2002 Nov 15;22(22):9656-60. (PMID: 12427820)
Exp Brain Res. 2003 Jan;148(2):272-6. (PMID: 12520418)
Curr Biol. 2003 Jan 21;13(2):146-50. (PMID: 12546789)
J Neurosci. 2003 Jun 15;23(12):4821-5. (PMID: 12832503)
PLoS Biol. 2004 Oct;2(10):e330. (PMID: 15383835)
Exp Brain Res. 1988;71(1):59-71. (PMID: 3416958)
Prog Neurobiol. 1992;38(1):35-56. (PMID: 1736324)
J Neurosci. 1994 May;14(5 Pt 2):3208-24. (PMID: 8182467)
Nature. 1996 Jul 18;382(6588):252-5. (PMID: 8717039)
Neuroreport. 1996 Oct 2;7(14):2325-30. (PMID: 8951846)
J Neurosci. 1997 Feb 15;17(4):1519-28. (PMID: 9006993)
J Neurosci. 1998 Sep 15;18(18):7511-8. (PMID: 9736669)
J Neurosci. 2006 Jun 28;26(26):7121-6. (PMID: 16807341)
Nature. 2000 Jan 13;403(6766):192-5. (PMID: 10646603)
Grant Information :
United Kingdom Wellcome Trust
Entry Date(s) :
Date Created: 20080520 Date Completed: 20080805 Latest Revision: 20181113
Update Code :
20210210
PubMed Central ID :
PMC2387196
DOI :
10.1016/j.cub.2008.04.061
PMID :
18485709
Czasopismo naukowe
To manipulate an object skillfully, the brain must learn its dynamics, specifying the mapping between applied force and motion. A fundamental issue in sensorimotor control is whether such dynamics are represented in an extrinsic frame of reference tied to the object or an intrinsic frame of reference linked to the arm. Although previous studies have suggested that objects are represented in arm-centered coordinates [1-6], all of these studies have used objects with unusual and complex dynamics. Thus, it is not known how objects with natural dynamics are represented. Here we show that objects with simple (or familiar) dynamics and those with complex (or unfamiliar) dynamics are represented in object- and arm-centered coordinates, respectively. We also show that objects with simple dynamics are represented with an intermediate coordinate frame when vision of the object is removed. These results indicate that object dynamics can be flexibly represented in different coordinate frames by the brain. We suggest that with experience, the representation of the dynamics of a manipulated object may shift from a coordinate frame tied to the arm toward one that is linked to the object. The additional complexity required to represent dynamics in object-centered coordinates would be economical for familiar objects because such a representation allows object use regardless of the orientation of the object in hand.

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies