Research article summary (published 8 Jul 2009):

Early induced beta/gamma activity during illusory contour perception.

Full 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.

Author information

Author/s: Wu, Xiang (X); Zhang, Daren (D);

Affiliation: 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.

Journal and publication information

Publication Type: Journal Article; Research Support, Non-U.S. Gov't

Journal: Neuroscience letters (Neurosci Lett), published in Ireland. (Language: eng)

Reference: 2009-Oct; vol 462 (issue 3) : pp 244-7

Dates: Created 2009/08/04; Completed 2009/10/26;

PMID: 19595738, status: MEDLINE (last retrieval date: 10/26/2009, IMS Date: )

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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MeSH headings (categories)

This article was linked to the MESH Headings shown below.

Beta Rhythm Cortical Synchronization Electroencephalography Female Form Perception Humans

Humans Illusions Male Photic Stimulation Reaction Time Young Adult

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