2010 Fiscal Year Final Research Report
Neuronal representation of visual salience in macaque posterior parietal cortex
| Project/Area Number |
20500283
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Neuroscience in general
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| Research Institution | Kyoto University |
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Principal Investigator |
OGAWA Tadashi Kyoto University, 大学院・医学研究科, 准教授 (50311197)
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| Research Collaborator |
TANAKA Tomohiro 京都大学, 大学院・医学研究科, 博士課程学生
FUJIMOTO Atsushi 京都大学, 大学院・医学研究科, 博士課程学生
NISHIDA Satoshi 京都大学, 大学院・医学研究科, 博士課程学生
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| Project Period (FY) |
2008 – 2010
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| Keywords | 注意 / 視覚的顕在性 / 視覚探索 / サル / サッカード / ニューロン活動 |
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| Research Abstract |
We found that a subset of neurons in the posterior parietal cortex (PPC) significantly discriminated the target from other stimuli only when the target was defined by a particular stimulus dimension and had specific stimulus features, such as a shape-singleton, bar stimulus (condition-dependent target selection), whereas another subset did so irrespective of the stimulus features and the target-defining dimension (condition-independent target selection). There was thus a great deal of variety in the neural representations specifying the locus of the target. The coexistence of these distinctly different types of target-discrimination processes suggests that the PPC may be situated at the level where the transition from nonspatial- to spatial-based target selection takes place.
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[Journal Article] Relating neuronal firing patterns to functional differentiation of cerebral cortex.2009
Author(s)
Shinomoto S, Kim H, Shimokawa T, Matsuno N, Funahashi S, Shima K, Fujita I, Tamura H, Doi T, Kawano K, Inaba N, Fukushima K, Kurkin S, Kurata K, Taira M, Tsutsui K, Komatsu H, Ogawa T, Koida K, Tanji J, Toyama K.
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Journal Title
PLoS Comput Biol. 5
Pages: 1000433
Peer Reviewed
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