title: Early induced beta/gamma activity during illusory contour perception.
abstract: The temporal binding hypothesis proposes that visual feature binding is achieved by neuronal synchronization. Nevertheless, the existing human neurophysiological evidence for the neuronal synchronization in visual feature binding-the oscillatory induced beta/gamma activity (IB/GA) is under suspicion. The previously observed IB/GA occurs at a later stage (after 200 ms), thus leading to the objection that IB/GA may be related to some later top-down processes rather than the early perceptual processing. However, the present EEG study identified an IB/GA as early as 90 ms after stimulus onset, which was stronger for a Kanizsa-type illusory contour (IC, a classic example of visual feature binding) than for a control stimulus. This finding provides new human evidence for the temporal binding hypothesis that neuronal synchronization occurs at the early stage of visual feature binding.
authors: Division of Bio-X Interdisciplinary Sciences, National Laboratory for Physical Science at Microscale, School of Life Science, University of Science and Technology of China, Hefei, Anhui, PR China.
authors: Xiang
authors: X
authors: Wu
authors: Daren
authors: D
authors: Zhang
mesh_terms: D001611:Beta Rhythm; D003344:Cortical Synchronization; D004569:Electroencephalography; D005260:Female; D005556:Form Perception; D006801:Humans; D007088:Illusions; D008297:Male; D010775:Photic Stimulation; D011930:Reaction Time; D055815:Young Adult