Presentation | 2007/6/21 Two stages in object-based attentional guidance : Evidence from event-related brain potentials Tetsuko KASAI, |
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Abstract(in Japanese) | (See Japanese page) |
Abstract(in English) | Attention selects "objects" as the most fundamental unit, which may be achieved through a process where attention automatically spreads within the whole region of an object. The present study examined effects of connectedness (connected/unconnected, thickness of the connecting line) on the attention-spreading over bilateral-stimulus arrays by using event-related brain potentials (ERPs). Directions of attention at the moment were indexed by lateralized potentials that enhanced at the hemisphere contralateral to the attended hemi-field. As a result, electrophysiological effects associated with the attention-spreading were identified in the early phase (150-200 ms post-stimulus) and the later phase (330-390 ms). This indicates that attention is serially guided by hierarchical object representations. |
Keyword(in Japanese) | (See Japanese page) |
Keyword(in English) | Selective Attention / Object / Visual Grouping / Event-Related Brain Potential |
Paper # | HIP2007-34 |
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Committee | HIP |
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Conference Date | 2007/6/21(1days) |
Place (in Japanese) | (See Japanese page) |
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Registration To | Human Information Processing (HIP) |
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Language | JPN |
Title (in Japanese) | (See Japanese page) |
Sub Title (in Japanese) | (See Japanese page) |
Title (in English) | Two stages in object-based attentional guidance : Evidence from event-related brain potentials |
Sub Title (in English) | |
Keyword(1) | Selective Attention |
Keyword(2) | Object |
Keyword(3) | Visual Grouping |
Keyword(4) | Event-Related Brain Potential |
1st Author's Name | Tetsuko KASAI |
1st Author's Affiliation | Faculty of Education, Hokkaido University() |
Date | 2007/6/21 |
Paper # | HIP2007-34 |
Volume (vol) | vol.107 |
Number (no) | 117 |
Page | pp.pp.- |
#Pages | 6 |
Date of Issue |