Masayoshi Nagai

Masayoshi Nagai, Ph. D.

Research Scientist

Cognition and Action Research Group
Institute for Human Science and Biomedical Engineering
National Institute of Advanced Industrial Science and Technology

AIST Tsukuba Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan

TEL: +81-29-861-6228
FAX: +81-29-861-6790

E-mail: masayoshi-nagai [at mark] aist.go.jp

Updated: November, 2009

Research　|　Publication　|　Presentation　|　Others　|　Links

Research

Key Words: Response Classification, Classification Image, Texture Segregation, Illusory Contour, Visual Spatiotemporal Processing, Representational Momentum, Event-Related Brain Potentials

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Publication

Nagai, M., Suganuma, M., Nijhawan, R., Freyd, J. J., Miller, G., Watanabe, K. (2010). Conceptual influence on the flash-lag effect and representational momentum. In Nijhawan, R. & Khurana, B. (Eds), pp.366-378, Space and Time in Perception and Action. Cambridge, UK: Cambridge University Press.
Hidaka, S, Nagai, M., Gyoba, J. (2009). Spatiotemporally coherent motion direction perception occurs even for spatiotemporal reversal of motion sequence. Journal of Vision, 9(13):6, 1-12, http://journalofvision.org/9/13/6/, doi:10.1167/9.13.6.
Endo, N., Nagai, M., & Kumada, T. (2009). Objective Estimation of State of Content Understanding by Near-Infrared Spectroscopy (NIRS). Japanese Journal of Psychonomic Science, 28(1), 2-16.
Noritake, A., Uttl, B., Terao, M., Nagai, M., Watanabe, J., Yagi, A. (2009). Saccadic Compression of Rectangle and Kanizsa Figures: Now You See It, Now You Don’t. PLoS ONE, 4(7), e6383, 1-11.
Honma, M., Kumada, T., Osada, Y., & Nagai, M. (2008). Synchronized stepping – Automatic imitation behavior between persons -. The Japanese Journal of Psychonomic Science, 27(1), 127-128.
Nagai, M., Bennett, P. J., & Sekuler, A. B. (2008). Exploration of vertical bias in perceptual completion of illusory contours: Threshold measures and response classification. Journal of Vision, 8(7):25, 1-17, http://journalofvision.org/8/7/25/, doi:10.1167/8.7.25.
Nagai, M., Bennett, P. J., & Sekuler, A. B. (2007). Spatiotemporal templates for detecting orientation-defined targets. Journal of Vision, 7(8):11, 1-16, http://journalofvision.org/7/8/11/, doi:10.1167/7.8.11.
Nagai, M. & Saiki, J. (2006). Re-examination of eye-movement related factors of Representational momentum. The Japanese Journal of Psychology, 77, 105-114 (In Japanese).
Nagai, M. & Yagi, A. (2005) Mismatch negativity related to updating information in object files, Psychologia. 48 (2), 127-132.
Nagai, M. & Saiki, J. (2005). Illusory motion and representational momentum. Perception & Psychophysics. 67 (5), 855-866.
Nagai, M., Kazai, K., & Yagi, A. (2002). Larger forward memory displacement in the direction of gravity. Visual Cognition, 9(1/2), 28-40.
Nagai, M., Kazai, K., & Yagi, A. (2001). Lambda response by orientation of striped patterns. Perceptual & Motor Skills, 93 (3), 672-676.
Nagai, M. & Yagi, A. (2001). The pointedness effect on representational momentum. Memory & Cognition, 29 (1), 91-99.
Takeda, Y., Nagai, M., Kazai, K., & Yagi, A. (1998). A static image of a rapidly moving pattern can be perceived by making a saccade. Psychologia, 41 (3), 199-202.

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Conference Presentation (International conferences only)

Honma, M., Kumada, T., Osada, Y., & Nagai, M. (2008, June 21st). The automatic synchronization of stepping phase of two persons when they see each other. The 12th Annual meeting of Association for Scientific Study of Consciousness. Taipei.
Hidaka, S., Nagai, M., & Gyoba, J. (2008). Non-reversed motion perception induced by the spatiotemporal reversal of apparent motion sequences. 8th Annual Meeting of Vision Science Society, Naples, Florida, USA.
Nagai, M., Kazai, K. Bennett, P. J., Katayose, H., Yagi, A., M. D. Rutherford, & Sekuler, A. B. (2008). The influence of eye and mouth position on judgments of face orientation. 8th Annual Meeting of Vision Science Society, Naples, Florida, USA.
Kazai, K., Konishi, K., Bennett, P. J., Sekuler, A. B., Yagi, A., Katayose, H.,　 Nagai, M. (2007, October 20th). Inversion effect of schematic face on N170. 47th Annual meeting for Society for Psychophysiological Research, Savannah, Georgia.
Nagai, M., Endo, N., & Kumada, T. (2007, July 25th). Measuring Brain Activities Related to Understanding Using Near-Infrared Spectroscopy (NIRS). 12th International Conference on Human-Computer Interaction 2007, Beijing, China.
Ikeda, H., Endo, N., Nagai, M., & Watanabe, K. (2007, June) Brain activation during visuomotor sequence tasks measured by NIRS. 13th Annual Meeting of Human Brain Mapping, Chicago, Illinois, USA.
Nagai, M., Bennett, P. J., M. D. Rutherford, Gaspar, C. M., Carbone, D., Nara, M., Ishii, H., Kumada, T., & Sekuler, A. B. (2007). Classification images for sampled stimuli: Comparing face processing in typical and autistic observers. 7th Annual Meeting of Vision Science Society, Sarasota, Florida, USA.
Bennett, P. J., Nagai, M., Honma, M., M. D. Rutherford, Gaspar, C. M., Carbone, D., Nara, M., Ishii, H., Kumada, T., & Sekuler, A. B. (2007). Two-element classification images for the discrimination of emotional expression in upright & inverted faces. 7th Annual Meeting of Vision Science Society, Sarasota, Florida, USA.
Masakura, Y., Nagai, M., & Kumada, T. (2006, July). Visual cues for helping people to focus important information on a visual display: an evaluation using subjective measure. The 5th International Conference of the Cognitive Science. Vancouver, Canada.
Nagai, M., Bennett, P. J., & Sekuler, A. B. (2005). Facilitation and inhibition in the spatiotemporal template for ring target detection. Perception, 34 (suppl.) 198b.
Nagai, M., Bennett, P. J., & Sekuler, A. B. (2005). Spatiotemporal templates for detecting 1st- and 2nd- order orientation- and luminance-defined targets. 4th Annual Meeting of Vision Science Society, Sarasota, Florida, USA.
Nagai, M., Bennett, P. J., & Sekuler, A. B. (2004). Spatiotemporal templates for detecting orientation- and luminance-defined targets. Technical Report on Attention & Cognition, No.30.
Bennett, P. J. Nagai, M., & Sekuler, A. B. (2004). Perceptual completion is not better than within than across hemispheres. 4th Annual Meeting of Vision Science Society, Sarasota, Florida, USA.
Nagai, M., Sekuler, A. B., & Bennett, P. J. (2004). Representational momentum with different target’s contrast. Poster session presented at 4th Annual Meeting of Vision Science Society, Sarasota, Florida, USA.
Nagai, M. & Saiki, J. (2002). Representational momentum for a target not pursued by eye movements. Abstract of 43rd Annual meeting of the Psychonomic Society, 7, 51.
Nagai, M., Saiki, J., Nakai, R., & Yagi, (2002). Representational momentum with and without a non-target context. Perception, 31 (suppl.) 122c.
Ashida, H. & Nagai, M. (2002). Reference frame and representational momentum. Poster session presented at Visual Localization in Space-Time 2002, University of Sussex, Brighton, UK.
Nagai, M. & Saiki, J. (2002). Representational momentum was not affected by induced motion of a target. Poster session presented at Visual Localization in Space-Time 2002, University of Sussex, Brighton, UK.
Nagai, M., Saiki, J., Nakai, R., & Yagi, A. (2002). A. Interaction between memory for a moving and a static stimuli. Third Tsukuba International Conference on Memory, Tsukuba, Japan.
Nagai, M. & Saiki, J. (2001). Direction of forward memory displacement is different from perceived motion direction. Abstract of 42nd Annual meeting of the Psychonomic Society, 6, 65.
Nagai, M., Kazai, K., & Yagi, A. (2000). Larger flash lag effect when flashed objects are presented at the onset of a moving object. Perception, 29 (suppl.) 93c.
Nagai, M., Kazai, K., & Yagi, A.　 (2000). Larger forward memory shift in the direction of the gravity irrespective of observers' postures. The first international workshop on representational momentum (RepMo2000), Max Planck Institute for Biological Cybernetics, Tübingen, Germany.
Nagai, M., Tsubouchi, R., & Yagi, A. (1998). Memory shift for the final position of a moving stimulus : A further examination of gravity effect. Poster session presented at the First Tsukuba International Conference on Memory, Tsukuba, Japan.
Nagai, M. & Yagi, A. (1998). Gravitational influence on representational momentum. Perception, 27 (suppl.) 144b.
Nagai, M., Kazai, K., & Yagi, A. (1998). Effects of orientations of striped patterns on the amplitude of lambda response. Proceedings at Conference on Psychophysiology in Ergonomics (PIE'98), 90-91.
Yagi, A., Takeda, Y., Nagai, M., & Sakamaki, E. (1997). Eye fixation-related potentials during a computer graphic task. Paper presented at the 37th Annual Meeting of the Society for Psychophysiological Research. North Falmouth, MA, USA.

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Others

2005 – present　　　 Research Scientist, Cognition & Action Research Group, Institute for Human Science and Biomedical Engineering, National Institute of Advanced Industrial Science and Technology (AIST).
2003– 2005　　　　　　　　Visiting postdoctoral research fellow, Department of Psychology, McMaster University, Ontario, Canada. Supervisor: Professor Allison Sekuler & Professor Patrick Bennett.
2002 – 2005　　　　　　　 Postdoctoral research fellow, Japan Society for the Promotion of Science (JSPS), Research Fellowship for Young Scientists. Department of Intelligence Science and Technology, Graduate School of Informatics, Kyoto University, Kyoto, Japan. Supervisor: Associate Professor Jun Saiki.
2000- 2002　　　　　　　　　 Research Associate, Japan Society for the Promotion of Science (JSPS), The Research for the Future Program. Department of Intelligence Science and Technology, Graduate School of Informatics, Kyoto University, Kyoto, Japan. Supervisor: Associate Professor Jun Saiki.

Best presentation award at Annual meeting of Kansai Psychological Association (2000, in Japanese).

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Links

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