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Exploring the factors influencing de...

Chai, Yu-Chin.

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Exploring the factors influencing detection of shape changes in single objects.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Exploring the factors influencing detection of shape changes in single objects./
作者:	Chai, Yu-Chin.
面頁冊數:	69 p.
附註:	Source: Masters Abstracts International, Volume: 42-01, page: 0341.
Contained By:	Masters Abstracts International42-01.
標題:	Psychology, Experimental. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1414734
ISBN:	0496195239

Exploring the factors influencing detection of shape changes in single objects.
Chai, Yu-Chin.

Exploring the factors influencing detection of shape changes in single objects. - 69 p.

Source: Masters Abstracts International, Volume: 42-01, page: 0341.

Thesis (M.S.)--The University of Texas at Arlington, 2003.

The purpose of the research is to determine some principles for why some brief changes to the shapes of objects are detectable and some are not. In post hoc analyses of a pilot study, we explored what factors influence the ability of people to detect rapid, transient shape changes in a single object. The analyses suggested that the size of the changed area, the complexity of the feature structure of the object, and the typicality of the viewpoint of the object at which the change occurred are all factors that influence one's ability to detect such changes. The main experiment used single, nameable, non-specific-view objects as visual stimuli. We used a change-blindness flicker paradigm in which observers were to detect bends in the object. The proportion of the object that changed was held constant. Motion energy was varied via manipulating the degree of the bend and object complexity was varied via varying the number of visible colors in the object. We found that object complexity affected people's ability to detect the changes, but only when motion energy was low. A manipulation check of whether number of colors captures the essence of object complexity suggested that it may not be the most direct measure of complexity. However, another measure of complexity applied post hoc also produced the same result. Overall, the results suggest that when objects are not moving, detection of changes in complex objects requires attention to be directed to parts rather than the entire object, whereas detection of changes in simpler objects will be easy.

ISBN: 0496195239Subjects--Topical Terms:

517106
Psychology, Experimental.

Exploring the factors influencing detection of shape changes in single objects.
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