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Weight discrimination ability during an action observation task is dependent on the type of muscle contraction.

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Title: Weight discrimination ability during an action observation task is dependent on the type of muscle contraction.
Authors: Albergoni, Andrea (AUTHOR), Paizis, Christos (AUTHOR), Papaxanthis, Charalambos (AUTHOR), Biggio, Monica (AUTHOR), Bove, Marco (AUTHOR), Bisio, Ambra (AUTHOR)
Source: European Journal of Neuroscience. Dec2024, Vol. 60 Issue 12, p7025-7037. 13p.
Subjects: Discrimination against overweight persons, Psychometrics, Sensitivity analysis, Volunteers, Resonance, Muscle contraction
Abstract: Concentric and eccentric contractions show different patterns of neural activity at both peripheral and cortical levels, which are thought to influence the perception of action properties such as the weight of objects moved by others. The aim of this study was to investigate how the type of muscle contraction influences weight estimation during action observation. Forty‐eight volunteers completed the Main experiment and the Control experiment. In the Main experiment, they performed a weight discrimination video task in which they watched videos of an actor moving two objects, a comparison, and a reference box, executing concentric or eccentric contractions and they had to indicate which box was the heaviest. Sensitivity analysis and psychometric functions were used to analyse the data. In the Control experiment, observers judged the actor's effort in moving the boxes. The results of the Main experiment showed that the weight discrimination sensitivity was higher in the eccentric condition for the light boxes. Conversely, for the heaviest boxes, discrimination sensitivity was higher in the concentric condition. These results were confirmed by the psychometric function analysis. The control experiment showed that the perceived difference in effort between the comparison and reference stimuli was greater in the eccentric than in the concentric condition for light stimuli. These results showed that the ability to evaluate the weight of the object involved in the observed action was influenced by the type of contraction and the amount of weight. The effort attributed to the actor influenced the observer's perception. [ABSTRACT FROM AUTHOR]
Copyright of European Journal of Neuroscience is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Weight discrimination ability during an action observation task is dependent on the type of muscle contraction.
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  Data: <searchLink fieldCode="AR" term="%22Albergoni%2C+Andrea%22">Albergoni, Andrea</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Paizis%2C+Christos%22">Paizis, Christos</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Papaxanthis%2C+Charalambos%22">Papaxanthis, Charalambos</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Biggio%2C+Monica%22">Biggio, Monica</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bove%2C+Marco%22">Bove, Marco</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Bisio%2C+Ambra%22">Bisio, Ambra</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22European+Journal+of+Neuroscience%22">European Journal of Neuroscience</searchLink>. Dec2024, Vol. 60 Issue 12, p7025-7037. 13p.
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  Data: <searchLink fieldCode="DE" term="%22Discrimination+against+overweight+persons%22">Discrimination against overweight persons</searchLink><br /><searchLink fieldCode="DE" term="%22Psychometrics%22">Psychometrics</searchLink><br /><searchLink fieldCode="DE" term="%22Sensitivity+analysis%22">Sensitivity analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Volunteers%22">Volunteers</searchLink><br /><searchLink fieldCode="DE" term="%22Resonance%22">Resonance</searchLink><br /><searchLink fieldCode="DE" term="%22Muscle+contraction%22">Muscle contraction</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Concentric and eccentric contractions show different patterns of neural activity at both peripheral and cortical levels, which are thought to influence the perception of action properties such as the weight of objects moved by others. The aim of this study was to investigate how the type of muscle contraction influences weight estimation during action observation. Forty‐eight volunteers completed the Main experiment and the Control experiment. In the Main experiment, they performed a weight discrimination video task in which they watched videos of an actor moving two objects, a comparison, and a reference box, executing concentric or eccentric contractions and they had to indicate which box was the heaviest. Sensitivity analysis and psychometric functions were used to analyse the data. In the Control experiment, observers judged the actor's effort in moving the boxes. The results of the Main experiment showed that the weight discrimination sensitivity was higher in the eccentric condition for the light boxes. Conversely, for the heaviest boxes, discrimination sensitivity was higher in the concentric condition. These results were confirmed by the psychometric function analysis. The control experiment showed that the perceived difference in effort between the comparison and reference stimuli was greater in the eccentric than in the concentric condition for light stimuli. These results showed that the ability to evaluate the weight of the object involved in the observed action was influenced by the type of contraction and the amount of weight. The effort attributed to the actor influenced the observer's perception. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of European Journal of Neuroscience is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.1111/ejn.16604
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        Text: English
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      – SubjectFull: Discrimination against overweight persons
        Type: general
      – SubjectFull: Psychometrics
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      – SubjectFull: Sensitivity analysis
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      – SubjectFull: Muscle contraction
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      – TitleFull: Weight discrimination ability during an action observation task is dependent on the type of muscle contraction.
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              Text: Dec2024
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              Y: 2024
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