
doi: 10.1167/13.13.10 , 10.1167/13.9.624
pmid: 24213598
In object recognition, features are thought to be processed in a hierarchical fashion from low-level analysis (edges and lines) to complex figural processing (shapes and objects). Here, we show that figural processing determines low-level processing. Vernier offset discrimination strongly deteriorated when we embedded a vernier in a square. This is a classic crowding effect. Surprisingly, crowding almost disappeared when additional squares were added. We propose that figural interactions between the squares precede low-level suppression of the vernier by the single square, contrary to hierarchical models of object recognition.
Male, hierarchical processing, vernier acuity, Visual Acuity, grouping, 3212 Ophthalmology and optometry, Humans, RECEPTIVE FIELDS, 11 Medical and Health Sciences, contextual modulation, SPATIAL INTERACTION, Science & Technology, LATERAL MASKING, Experimental Psychology, 17 Psychology and Cognitive Sciences, crowding, Form Perception, Ophthalmology, Pattern Recognition, Visual, Sensory Thresholds, Female, Visual Fields, Life Sciences & Biomedicine
Male, hierarchical processing, vernier acuity, Visual Acuity, grouping, 3212 Ophthalmology and optometry, Humans, RECEPTIVE FIELDS, 11 Medical and Health Sciences, contextual modulation, SPATIAL INTERACTION, Science & Technology, LATERAL MASKING, Experimental Psychology, 17 Psychology and Cognitive Sciences, crowding, Form Perception, Ophthalmology, Pattern Recognition, Visual, Sensory Thresholds, Female, Visual Fields, Life Sciences & Biomedicine
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