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Neural mechanisms of feature binding 被引量:3
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作者 Yifei Zhang Yan-Yu Zhang Fang Fang 《Science China(Life Sciences)》 SCIE CAS CSCD 2020年第6期926-928,共3页
An object is usually composed of different features(e.g.,color,orientation,and motion),which are processed by segregated visual pathways and represented by functionally specialized brain areas.However,we perceive an o... An object is usually composed of different features(e.g.,color,orientation,and motion),which are processed by segregated visual pathways and represented by functionally specialized brain areas.However,we perceive an object as a coherent whole,rather than its isolated features.How we integrate those isolated features and achieve a precise perception of objects is a fundamental challenge for the visual system,which is referred to as the binding problem. 展开更多
关键词 Neural mechanisms of feature binding
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Brain functional network connectivity based on a visual task: visual information processing-related brain regions are significantly activated in the task state 被引量:2
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作者 Yan-li Yang Hong-xia Deng +2 位作者 Gui-yang Xing Xiao-luan Xia Hai-fang Li 《Neural Regeneration Research》 SCIE CAS CSCD 2015年第2期298-307,共10页
It is not clear whether the method used in functional brain-network related research can be applied to explore the feature binding mechanism of visual perception. In this study, we inves-tigated feature binding of col... It is not clear whether the method used in functional brain-network related research can be applied to explore the feature binding mechanism of visual perception. In this study, we inves-tigated feature binding of color and shape in visual perception. Functional magnetic resonance imaging data were collected from 38 healthy volunteers at rest and while performing a visual perception task to construct brain networks active during resting and task states. Results showed that brain regions involved in visual information processing were obviously activated during the task. The components were partitioned using a greedy algorithm, indicating the visual network existed during the resting state.Z-values in the vision-related brain regions were calculated, conifrming the dynamic balance of the brain network. Connectivity between brain regions was determined, and the result showed that occipital and lingual gyri were stable brain regions in the visual system network, the parietal lobe played a very important role in the binding process of color features and shape features, and the fusiform and inferior temporal gyri were crucial for processing color and shape information. Experimental ifndings indicate that understanding visual feature binding and cognitive processes will help establish computational models of vision, improve image recognition technology, and provide a new theoretical mechanism for feature binding in visual perception. 展开更多
关键词 nerve regeneration functional magnetic resonance imaging resting state task state brain network module division feature binding Fisher’s Z transform CONNECTIVITY visual stimuli NSFC grants neural regeneration
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