The sensorimotor system minimizes prediction error for object lifting when the object’s weight is uncertain

A reliable mechanism to predict the heaviness of an object is important for manipulating an object under environmental uncertainty. Recently, Cashaback et al. (Cashaback JGA, McGregor HR, Pun HCH, Buckingham G, Gribble PL. J Neurophysiol 117: 260–274, 2017) showed that for object lifting the sensori...

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Bibliographic Details
Published inJournal of neurophysiology Vol. 118; no. 2; pp. 649 - 651
Main Authors Brooks, Jack, Thaler, Anne
Format Journal Article
LanguageEnglish
Published United States American Physiological Society 01.08.2017
SeriesSensory Processing
Subjects
Body Weight
Humans
Lifting
Neuro Forum
Psychomotor Performance
Uncertainty
object lifting
Bayesian inference
predictive control
uncertainty
motor control
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Summary:A reliable mechanism to predict the heaviness of an object is important for manipulating an object under environmental uncertainty. Recently, Cashaback et al. (Cashaback JGA, McGregor HR, Pun HCH, Buckingham G, Gribble PL. J Neurophysiol 117: 260–274, 2017) showed that for object lifting the sensorimotor system uses a strategy that minimizes prediction error when the object’s weight is uncertain. Previous research demonstrates that visually guided reaching is similarly optimized. Although this suggests a unified strategy of the sensorimotor system for object manipulation, the selected strategy appears to be task dependent and subject to change in response to the degree of environmental uncertainty.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
ObjectType-Commentary-3
content type line 23
ISSN:0022-3077
1522-1598
1522-1598
DOI:10.1152/jn.00232.2017