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The heaviness of invisible objects: Predictive weight judgments from observed real and pantomimed grasps

Authors :
Jessica Podda
Roberta Vastano
Cristina Becchio
Caterina Ansuini
Andrea Cavallo
Source :
Cognition
Publication Year :
2017
Publisher :
Elsevier BV, 2017.

Abstract

Highlights • Observation of others’ actions provides a shared experience of objects acted upon. • Observation of grasping movements provides a shared experience of object weight. • Object weight can be predictively judged from the kinematics of real grasps. • Weight judgements are also possible from the observation of pantomimed grasps.<br />Observation of others’ actions has been proposed to provide a shared experience of the properties of objects acted upon. We report results that suggest a similar form of shared experience may be gleaned from the observation of pantomimed grasps, i.e., grasps aimed at pretended objects. In a weight judgment task, participants were asked to observe a hand reaching towards and grasping either a real or imagined glass, and to predictively judge its weight. Results indicate that participants were able to discriminate whether the to-be-grasped glass was empty, and thus light, or full, and thus heavy. Worthy of further investigation, this finding suggests that by observing others’ movements we can make predictions, and form expectations about the characteristics of objects that exist only in others’ minds.

Details

ISSN :
00100277
Volume :
168
Database :
OpenAIRE
Journal :
Cognition
Accession number :
edsair.doi.dedup.....d4f101e9f5a744f3bbab9aa1881c1e32
Full Text :
https://doi.org/10.1016/j.cognition.2017.06.023