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| Volume 3, Number 1, Article 1, Pages 1-5 |
doi:10.1167/3.1.1 |
http://journalofvision.org/3/1/1/ |
ISSN 1534-7362 |
Effects of scene inversion on change detection of targets matched for visual salience
Todd A. Kelley |
Department of Psychology, Vanderbilt University, Nashville, TN, USA |
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Marvin M. Chun |
Department of Psychology, Vanderbilt University, Nashville, TN, USA |
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Kao-Ping Chua |
Department of Psychology, Vanderbilt University, Nashville, TN, USA |
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Abstract
This work examines how context may influence the detection of changes in flickering scenes. Each scene contained two changes that were matched for low-level visual salience. One of the changes was of high interest to the meaning of the scene, and the other was of lower interest. High-interest changes were more readily detected. To further examine the effects of contextual significance, we inverted the scene orientation to disrupt top-down effects of global context while controlling for contributions of visual salience. In other studies, inverting scene orientation has had inconsistent effects on detection of high-interest changes. However, this experiment demonstrated that inverting scene orientation significantly reduced the advantage for high-interest changes in comparison to lower-interest changes. Thus, scene context influences the deployment of attention and change-detection performance, and this top-down influence may be disrupted by scene inversion.
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