2014 Fiscal Year Final Research Report
A study of perception of hierarchical structure embedded in object motion
| Project/Area Number |
23530961
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Experimental psychology
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| Research Institution | Aoyama Gakuin University |
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Principal Investigator |
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| Research Collaborator |
UEDA Sachiyo
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| Project Period (FY) |
2011-04-28 – 2015-03-31
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| Keywords | 認知心理学 / 認知科学 / 運動知覚 / 形態知覚 / 行為知覚 / ベイズモデル |
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| Outline of Final Research Achievements |
In this study, we investigated what aspect of hierarchical structure embedded in object motion is used to detect the critical point of shape change of object. The critical point of shape change is the point where the most important movement that causes the whole change of the object shape occurs. We used arm-like artificial point-light displays and conducted several psychophysical experiments and Bayesian simulations. The results show that human observers utilized hierarchical order information to detect the critical point, not the strict positioning of each point guided by the location of their ancestor. We also conducted experiments to examine whether the trajectory of points affects the determination of hierarchical structure (or the perceptual problem “which point was in the highest rank of the hierarchical structure”). The results suggests that smooth trajectory did not help the determination much, and that the grouping process might be important to solve this problem.
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| Free Research Field |
認知心理学
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