Local form interference in biological motion perception

被引:0
作者
Jess E. Kerr-Gaffney
Amelia R. Hunt
Karin S. Pilz
机构
[1] University of Aberdeen,School of Psychology
来源
Attention, Perception, & Psychophysics | 2016年 / 78卷
关键词
Motion; Biological; Object Recognition;
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学科分类号
摘要
Replacing the local dots of point-light walkers with complex images leads to significant detriments to performance in biological motion detection and discrimination tasks. This detriment has previously been shown to be larger when the local elements match the global shape in object category and facing direction. In contrast, studies using Navon stimuli have demonstrated that local interference on global processing primarily occurs when local elements are dissimilar to the global form. In 3 experiments, we investigated this contradiction by replacing the local dots of a point-light walker with human images or stick figures. Participants were significantly faster and more accurate at discriminating the facing and walking direction of a walker when the local images were facing in the same direction as the global walker than when they were facing in the opposite direction. These results provide support for the idea that organization of biological motion depends on allocation of limited processing resources to the global motion information when the local elements are complex. However, there is more disruption to global form processing when the local elements and global form conflict in task-related properties.
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页码:1434 / 1443
页数:9
相关论文
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