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  What Is the speed of perceptual processes underlying joint-action recognition

de la Rosa, S., & Chatziastros, A. (2009). What Is the speed of perceptual processes underlying joint-action recognition. In 3rd Joint Action Meeting (JAM 2009) (pp. 21).

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-1328-B Version Permalink: http://hdl.handle.net/21.11116/0000-0003-1D0F-E
Genre: Meeting Abstract

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de la Rosa, S1, 2, 3, Author              
Chatziastros, A1, 2, Author              
Affiliations:
1Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497794              
2Department Human Perception, Cognition and Action, Max Planck Institute for Biological Cybernetics, Max Planck Society, ou_1497797              
3Project group: Cognitive Engineering, Max Planck Institute for Biological Cybernetics, Max Planck Society, Spemannstrasse 38, 72076 Tübingen, DE, ou_2528702              

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 Abstract: oint-actions are an integral part of everyday human life. It is often critical in everyday situations that joint-act ions are recognized quickly as when one is driving on a road and has to recognize children playing with a ball on a sidewalk to detect a possible danger. Surprisingly relatively little is known about the speed of joint-action recogn ition. Here we investigated how fast joint-actions can be recognized on three levels of detail (detection, categorization, and identification). We assessed the speed of joint-action recognition by comparing the speed of j oint-action recognition with object recognition, which is known to be fast (e.g. Thorpe et al., 1996). In a series of experiments we present ed static images of object s and joint-actions at varying presentation times to partici pants and measured their detection, categorization, and identification pe rformance. We find that presentation times of less than 80 ms allowed joint-action recognition to be highly accurate (79%) in all three recognition tasks. Interestingly for some joint- actions we found identification to be as fast as object identification. Overall it seems that the speed of detecting and identifying joint-actions and objects are comparable. This poses a challenge to the notion that humans employ time consuming inferential processes in the recognition of joint- action (“theory of mind”). Moreover we find that the speed of joint-action and object categorization differ significantly suggesting that objects and joint-actions are processed early on by different perceptual processes.

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 Dates: 2009-07
 Publication Status: Published online
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Title: 3rd Joint Action Meeting (JAM 2009)
Place of Event: Amsterdam, The Netherlands
Start-/End Date: 2009-07-27 - 2009-07-29

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Title: 3rd Joint Action Meeting (JAM 2009)
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 21 Identifier: -