学術論文

学術論文

• Duay Killian, & Takehiro Nagai: Theoretical physical color gamuts define luminosity and naturalness perceptual limits in natural scenes (under review)

• Minwoo Son, & Takehiro Nagai: Simple reaction time properties under an abrupt decrease in background luminance (under review)

• 1. Kashi Li, & Takehiro Nagai: Attention plays a greater role in judging large color differences than small ones. Journal of the Optical Society of America A, 42(5), B353-B364, 2025. (Published article, Open Access).

  2. Takehiro Nagai, Hiroaki Kiyokawa, & Juno Kim: Top-down effects on translucency perception in relation to shape cues. PLOS ONE, 20(2):e0314439, 2025. (Published article, Open Access).

  3. Killian Duay, & Takehiro Nagai: Impact of field of view on color constancy in virtual reality. Journal of the Optical Society of America A, 42(5), B199-B213, 2025. (Postprint) (Published article, Subscription required)

  4. Killian Duay, Yoko Mizokami, & Takehiro Nagai: VR HMD color calibration and accurate control of emitted light using Three.js. Journal of Vision, 25(2):4, 2025. (Published article, Open access).

  5. Minwoo Son, & Takehiro Nagai: Luminance and chromaticity discrimination sensitivities right after an abrupt decrease in background luminance. Color Research and Application, 50(1), 25-35, 2025. (Published article, Open access)

  6. Kashi Li, & Takehiro Nagai: Increasing magnitude of color differences amplifies category effects. Scientific Reports, 14, 13665, 2024. (Published article, Open access)

  7. Suzuha Horiuchi, & Takehiro Nagai: Color discrimination repetition distorts color representations. Scientific Reports, 14, 9615, 2024. (Published article, Open access)

  8. Hiroaki Kiyokawa, Takehiro Nagai, Yasuki Yamauchi, & Juno Kim: The perception of translucency from surface gloss.  Vision Research, 205, 108140, 2023. (Published article, Open access)

  9. Yuyang Cai, Hiroaki Kiyokawa, Takehiro Nagai, Leyla Haghzare, Matthew Arnison, & Juno Kim: Effects of specular roughness on the perception of colour and opacity. Journal of the Optical Society of America A, 40(3), A220-A229, 2023. (Published article, Subscription required)

  10. Hiroki Nohira, & Takehiro Nagai: Texture statistics involved in specular highlight exclusion for object lightness perception. Journal of Vision, 23(3):1, 2023. (Published article, Open access)

  11. Kazuto Koizumi, & Takehiro Nagai: The dominating impacts of Helmholtz-Kohlrausch effect on color-induced glossiness enhancement.  Journal of Vision, 23(1):11, 1−19, 2023. (Published article, Open access)

  12. Takehiro Nagai, Kana Kakuta, & Yasuki Yamauchi: Luminance dependency of perceived color shift after color contrast adaptation caused by higher-order color channels. Journal of Vision, 22(7):8, 2022. (Published article, Open access)

  13. Takehiro Nagai, Takuya Okada, Ken Nishino, & Natsuko Okiyama: Impact of local luminance contrast on facial skin lightness perception: a psychophysical reverse correlation study using sub-band contrast modulation noise. Vision Research, 196:108028, 2022. (Published article, Open access)

  14. Misaki Hayasaka, Takehiro Nagai, Yasuki Yamauchi, Tomoharu Sato, & Ichiro Kuriki: Luminance contrast detection is optimized for the large-scale luminance texture of the surround. Color Research and Application, 47(2), 271-287, 2022. (Published article, Open access)

  15. Hiroaki Kiyokawa, Tomonori Tashiro, Yasuki Yamauchi, & Takehiro Nagai: Spatial frequency effective for increasing perceived glossiness by contrast enhancement.  Frontiers in Psychology, 12:625135, 2021. (Published article, Open access) 

  16. Tomoharu Sato, Takehiro Nagai, & Ichiro Kuriki: Hue selectivity of collinear facilitation. Journal of the Optical Society of America A,  A154-A162, 2020. (Postprint) (Published article, Subscription required)

  17. Hiroaki Kiyokawa, Tomonori Tashiro, Yasuki Yamauchi, & Takehiro Nagai: Luminance edge is a cue for glossiness perception based on low-luminance specular components. Journal of Vision, 19(12):5, 1-22, 2019. (Published article, Open access) 

  18. Takehiro Nagai, Yuta Hosaka, Tomoharu Sato, & Ichiro Kuriki: Relative contributions of low- and high-luminance components to material perception. Journal of Vision, 18(13):6, 1-19, 2018. (Published article, Open access) 

  19. 清川宏暁，川島祐貴，山内泰樹，永井岳大：能動的課題遂行による視覚的質感判断への知覚学習．日本感性工学会論文誌，17(2)，309-319，2018．(Published article, Open access)

  20. Yusuke Tani, Ryo Nishijima, Kowa Koida, Takehiro Nagai, Michiteru Kitazaki, & Shigeki Nakauchi: Trained visual art experts make more stable judgments of glossiness. The Japanese Journal of Psychonomic Science, 36(3) 17-29, 2017. (Published article, Open access) 日本基礎心理学会 2017年度優秀論文賞受賞.

  21. Takehiro Nagai, Shigeyuki Kaneko, Yuki Kawashima, & Yasuki Yamauchi: Do specular highlights and the daylight locus act as cues for estimating illumination color from a single object? Optical Review, 24(1), 47-61, 2017. (Postprint) (Published article, Subscription required)

  22. Tomoharu Sato, Takehiro Nagai, Ichiro Kuriki, & Shigeki Nakauchi: Dissociation of equilibrium points for color-discrimination and color-appearance mechanisms in incomplete chromatic adaptation. Journal of the Optical Society of America A, 33(3), A150-A163, 2016. (Postprint) (Published article, Subscription required)

  23. Takehiro Nagai, Kazuki Nakayama, Yuki Kawashima, & Yasuki Yamauchi: Contrast adaptation to luminance and brightness modulations. Journal of the Optical Society of America A, 33(3), A37-A44, 2016. (Postprint) (Published article, Subscription required)

  24. Takehiro Nagai, Toshiki Matsushima, Kowa Koida, Yusuke Tani, Michiteru Kitazaki, & Shigeki Nakauchi: Temporal properties of material categorization and material rating: visual vs non-visual material features. Vision Research, 115(PartB), 259-270, 2015. (Postprint) (Published article, Subscription required)

  25. 谿雄祐，西島遼，永井岳大，鯉田孝和，北崎充晃，中内茂樹：前方・後方照明強度比による透明感知覚の変化．映像情報メディア学会誌，68 (12)，J534−J536, 2014．(Postprint)

  26. Tomoharu Sato, Takehiro Nagai, & Shigeki Nakauchi: Reverse correlation analysis of chromatic contrast perception based on chromatic mechanism models. Optical Review, 21(5), 526-540, 2014. (Postprint) (Published article, Subscription required)

  27. Yusuke Tani, Takehiro Nagai, Kowa Koida, Michiteru Kitazaki, & Shigeki Nakauchi: Experts and novices use the same factors -but differently- to evaluate pearl quality. PLOS ONE, 9(1):e86400, 2014. (Published article, Open access)

  28. Takehiro Nagai, Yuki Ono, Yusuke Tani, Kowa Koida, Michiteru Kitazaki, & Shigeki Nakauchi: Image regions contributing to perceptual translucency: A psychophysical reverse correlation study. i-Perception, 4(6), 407-428, 2013. (Published article, Open access)

  29. Takehiro Nagai, Hiroto Kimura, & Shigeki Nakauchi: Color signal integration for color discrimination along a long-range apparent motion trajectory. Multisensory Research, 26(3), 241-265, 2013. (Published article, Subscription required)

  30. Yusuke Tani, Keisuke Araki, Takehiro Nagai, Kowa Koida, Shigeki Nakauchi, & Michiteru Kitazaki: Enhancement of glossiness perception by retinal-image motion: additional effect of head-yoked motion parallax. PLOS ONE, 8(1), e54549, 2013. (Published article, Open access)

  31. Takehiro Nagai, R. Dirk Beer, Erin A. Krizay, & Donald I. A. MacLeod: Spatiotemporal averaging of perceived brightness along an apparent motion trajectory. Journal of Vision, 11(7):5, 1-15, 2011. (Published article, Open access)

  32. Takehiro Nagai, Takahiro Hoshino, & Keiji Uchikawa: Statistical significance testing with Mahalanobis distance for thresholds estimated from constant stimuli method. Seeing and Perceiving, 24(2), 91-124, 2011. (Published article, Subscription required)

  33. Takehiro Nagai & Keiji Uchikawa: Different hue coding underlying figure segregation and region detection tasks. Journal of Vision, 9(9):14, 1-19, 2009. (Published article, Open access)

  34. Takehiro Nagai & Keiji Uchikawa: Characteristics of grouping colors for figure segregation on a multicolored background. Journal of the Optical Society of America A, 25(11), 2618-2629, 2008. (Published article, Subscription required)

  35. 永井岳大，内川惠二：彩度分布を持った不均一領域間の色相の違いによる形状弁別と色弁別の比較．VISION，19，1-14，2007．

  36. 永井岳大，星野崇宏，内川惠二：恒常法により推定された閾値間の統計的有意差検定法．VISION，18，113-123，2006．日本視覚学会論文賞受賞．