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A unique visual rhythm does not pop out |
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| Authors: | Hui Li Yan Bao Ernst Pöppel Yi-Huang Su |
| Affiliation: | 1. Institute of Medical Psychology and Human Science Center, Ludwig Maximilian University, Munich, Germany 2. Department of Psychology and Key Laboratory of Machine Perception (MoE), Peking University, 5 Yiheyuan Road, Beijing, 100871, China 3. Parmenides Center for Art and Science, Pullach, Germany 4. Institute of Psychology, Chinese Academy of Sciences, Beijing, China 5. Department of Movement Science, Technical University Munich, Munich, Germany |
| Abstract: | We investigated attentional demands in visual rhythm perception of periodically moving stimuli using a visual search paradigm. A dynamic search display consisted of vertically “bouncing dots” with regular rhythms. The search target was defined by a unique visual rhythm (i.e., a shorter or longer period) among rhythmic distractors with identical periods. We found that search efficiency for a faster or a slower periodically moving target decreased as the number of distractors increased, although searching for a faster target was about one second faster than searching for a slower target. We conclude that perception of a visual rhythm defined by a unique period is not a “pop-out” process, but a serial one that demands considerable attention. |
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