Dynamics of Feature Binding during Object-Selective Attention
Objects in the environment may be attended selectively and perceived as unified ensembles of their constituent features. To investigate the timing and cortical localization of feature-integration mechanisms in object-based attention, recordings of event-related potentials and magnetic fields were co...
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| Veröffentlicht in: | Proceedings of the National Academy of Sciences - PNAS 2003-09, Vol.100 (20), p.11806-11811 |
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| container_title | Proceedings of the National Academy of Sciences - PNAS |
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| creator | Schoenfeld, M. A. Tempelmann, C. Martinez, A. J. -M. Hopf Sattler, C. H. -J. Heinze Hillyard, S. A. |
| description | Objects in the environment may be attended selectively and perceived as unified ensembles of their constituent features. To investigate the timing and cortical localization of feature-integration mechanisms in object-based attention, recordings of event-related potentials and magnetic fields were combined with functional MRI while subjects attended to one of two superimposed transparent surfaces formed by arrays of dots moving in opposite directions. A spatiotemporal analysis revealed evidence for a rapid increase in neural activity localized to a color-selective region of the fusiform gyrus when the surface moving in the attended direction displayed an irrelevant color feature. These data provide support for the "integrated-competition" model of object-selective attention and point to a dynamic neural substrate for the rapid binding process that links relevant and irrelevant features to form a unified perceptual object. |
| doi_str_mv | 10.1073/pnas.1932820100 |
| format | Article |
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| source | Jstor Complete Legacy; MEDLINE; PubMed Central; Alma/SFX Local Collection; Free Full-Text Journals in Chemistry |
| subjects | Adult Attention - physiology Behavioral neuroscience Brain research Color Color change Coordinate systems Evoked Potentials Experimentation Face Humans Magnetic fields Magnetic Resonance Imaging Male Medical imaging Perception Perceptual localization Psychology Sensory perception Social Sciences Visual Perception - physiology Waveforms |
| title | Dynamics of Feature Binding during Object-Selective Attention |
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