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Motor Adaptation and Manual Transfer: Insight into the Persistent Nature of Sensorimotor Representations

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Title: Motor Adaptation and Manual Transfer: Insight into the Persistent Nature of Sensorimotor Representations
Language: English
Authors: Green, Sharon, Grierson, Lawrence E. M., Dubrowski, Adam
Source: Brain and Cognition. Apr 2010 72(3):385-393.
Availability: Elsevier. 6277 Sea Harbor Drive, Orlando, FL 32887-4800. Tel: 877-839-7126; Tel: 407-345-4020; Fax: 407-363-1354; e-mail: usjcs@elsevier.com; Web site: http://www.elsevier.com
Peer Reviewed: Y
Physical Description: PDF
Page Count: 9
Publication Date: 2010
Document Type: Journal Articles
Reports - Research
Descriptors: Perceptual Motor Learning, Feedback (Response), Task Analysis, Experiments, Evaluation Methods, Cognitive Processes, Human Body
DOI: 10.1016/j.bandc.2009.11.006
ISSN: 0278-2626
Abstract: It is well known that sensorimotor memories are built and updated through experience with objects. These representations are useful to anticipatory and feedforward control processes that preset grip and load forces during lifting. When individuals lift objects with qualities that are not congruent with their memory-derived expectations, feedback processes adjust motor plans to achieve successful lifts and contribute to the updating of the stored representations. The two experiments presented examine motor adaptation to an illusory size--weight lifting task, and the transfer of this motor adaptation to the unexposed hand. In Experiment 1, performers acquired motor adaptation with their right hand and transfer was measured on their left hand. In Experiment 2, adaptation was acquired with the left hand and transfer was measured on the right hand. In order to investigate the persistence of sensorimotor memories, these experiments measure adaptation, retention, and transfer after 15 min and 24 h delay periods. Both experiments confirm that experience with objects leads to adaptation of force scaling processes, that these adaptations transcend effector and are persistent. The results are discussed in terms favouring interpretations that describe motor adaptations to illusion as being centrally available. (Contains 7 figures and 2 tables.)
Abstractor: As Provided
Entry Date: 2010
Accession Number: EJ874804
Database: ERIC
FullText Text:
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  Data: Motor Adaptation and Manual Transfer: Insight into the Persistent Nature of Sensorimotor Representations
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  Data: <searchLink fieldCode="SO" term="%22Brain+and+Cognition%22"><i>Brain and Cognition</i></searchLink>. Apr 2010 72(3):385-393.
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  Data: Elsevier. 6277 Sea Harbor Drive, Orlando, FL 32887-4800. Tel: 877-839-7126; Tel: 407-345-4020; Fax: 407-363-1354; e-mail: usjcs@elsevier.com; Web site: http://www.elsevier.com
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  Data: It is well known that sensorimotor memories are built and updated through experience with objects. These representations are useful to anticipatory and feedforward control processes that preset grip and load forces during lifting. When individuals lift objects with qualities that are not congruent with their memory-derived expectations, feedback processes adjust motor plans to achieve successful lifts and contribute to the updating of the stored representations. The two experiments presented examine motor adaptation to an illusory size--weight lifting task, and the transfer of this motor adaptation to the unexposed hand. In Experiment 1, performers acquired motor adaptation with their right hand and transfer was measured on their left hand. In Experiment 2, adaptation was acquired with the left hand and transfer was measured on the right hand. In order to investigate the persistence of sensorimotor memories, these experiments measure adaptation, retention, and transfer after 15 min and 24 h delay periods. Both experiments confirm that experience with objects leads to adaptation of force scaling processes, that these adaptations transcend effector and are persistent. The results are discussed in terms favouring interpretations that describe motor adaptations to illusion as being centrally available. (Contains 7 figures and 2 tables.)
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