Configural processing of different topologically structured figures: an ERP Study |
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Authors: | JunJun Zhang WeiNa Zhu XiaoJun Ding ChangLe Zhou XinTian Hu YuanYe Ma |
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Institution: | 1 Lab of Mind, Art and Computation, Xiamen University, Xiamen 361005, China; 2 Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming 650223, China; 3 State Key Laboratory of Brain and Cognitive Science, Institute of Biophysics, Chinese Academy of Sciences, Beijing 1001001, China; 4 School of Information Science, Yunnan University, Kunming 650223, China |
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Abstract: | According to Chen’s theory, topological differences are perceived faster than feature differences in early visual perception. We hypothesized that topological perception is caused by the sensitivity in discriminating figures with and without “holes”. An ERP experiment was conducted utilizing a passive paradigm to investigate the differences in perceiving figures with “hole” and with “no-hole”. The results showed differences in N170 components between figures with “holes” and with “no-holes”. The inversion of the “hole” could influence the latency of N170, but the inversion of the “no-hole” could not, which indicated that global features are processed first in the “hole” perception whilst local features are given priority to the “no-hole” perception. This result was similar to studies concerning face and non-face objects, suggesting a configural processing of the “hole”. |
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Keywords: | visual evoked potential topological perception N170 |
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