| Project/Area Number |
26870911
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Cognitive science
Experimental psychology
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| Research Institution | National Institute of Information and Communications Technology |
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Principal Investigator |
Ban Hiroshi 国立研究開発法人情報通信研究機構, 脳情報通信融合研究センター・脳情報通信融合研究室, 研究員 (00467391)
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | fMRI / 奥行き知覚 / 3D / 視覚心理学 / 神経科学 / 視知覚 / 3D知覚 / 物体知覚 / 物体認知 / 実験心理学 / 脳機能イメージング |
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| Outline of Final Research Achievements |
A fundamental challenge in visual neuroscience is to understand how the outputs of neurons responding to local, simple elements are progressively transformed to encode the critical features of spatially-extensive objects. While models of the ventral stream detail the decoding transformations that support invariance, much less is known about the dorsal hierarchy. In this research project, using human fMRI, I especially focused on the cortical processing of binocular depth signals that strongly engage dorsal pathways. In addition, I tried to reveal how and where in the brain binocular disparities and pictorial depth cues (e.g. shading, motion) are fused into a unified depth representation. I found that local binocular disparities are gradually integrated into a coherent 3D surface from V1 to V3B, and that multiple depth cues are integrated in V3B, an adjacent region of V3A. I further tried to apply those findings for future novel 3D visualization techniques.
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