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Erschienen in: Experimental Brain Research 3/2004

01.04.2004 | Research Article

Internal models underlying grasp can be additively combined

verfasst von: Paul R. Davidson, Daniel M. Wolpert

Erschienen in: Experimental Brain Research | Ausgabe 3/2004

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Abstract

Our ability to additively combine two learned internal models was investigated by studying the forces people generate when lifting objects with a precision grip. Subjects were required to alternately lift two objects of identical physical appearance but differing weight. Grip force scaling prior to lift-off was used to estimate the output of the internal model associated with each object. Appropriate internal models were formed when alternately lifting two objects of different weight. The objects were then combined by stacking them one upon the other, and the combined object was lifted. Results show that subjects can additively combine internal models of object dynamics but the sum is biased by a default estimate of the object’s weight.
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Metadaten
Titel
Internal models underlying grasp can be additively combined
verfasst von
Paul R. Davidson
Daniel M. Wolpert
Publikationsdatum
01.04.2004
Erschienen in
Experimental Brain Research / Ausgabe 3/2004
Print ISSN: 0014-4819
Elektronische ISSN: 1432-1106
DOI
https://doi.org/10.1007/s00221-003-1730-z

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