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Creating Objects and Object Categories for Studying Perception and Perceptual Learning
Published on: November 2, 2012
Barrier effects in non-retinotopic feature attribution.
Murat Aydın1, Michael H Herzog, Haluk Oğmen
1Department of Electrical and Computer Engineering, University of Houston, Houston, TX 77024-4005, USA.
Vision Research
|July 20, 2011
Summary
Perceived motion correspondences help link features to objects. However, a static barrier can disrupt this feature attribution process, suggesting it
Area of Science:
- Visual perception
- Cognitive neuroscience
- Psychophysics
Background:
- The human visual system can maintain object identity and feature-object relationships despite changes in retinal images due to object motion.
- Previous research demonstrated that perceived motion correspondences facilitate non-retinotopic feature attribution using the Ternus-Pikler display.
Purpose of the Study:
- To determine if perceived motion correspondences are sufficient for feature attribution.
- To investigate the role of intervening stimuli in the feature attribution process.
Main Methods:
- Utilized a Ternus-Pikler display paradigm.
- Introduced a static "barrier" stimulus during the motion display.
- Assessed the impact of the barrier on feature attribution.
Main Results:
- The presence of a static barrier significantly interfered with feature attribution.
- Interference appeared specific to the feature attribution process, not solely dependent on perceived motion.
Conclusions:
- Perceived motion correspondences may not be a sufficient condition for feature attribution when visual processing is disrupted.
- Static visual elements can impede the non-retinotopic binding of features to objects, highlighting the complexity of visual object tracking.
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