Tetsuto Minami, Ph.D.
Professor,
Department of Computer Science and Engineering
Toyohashi University of Technology
1-1 Hibarigaoka, Tenpaku, Toyohashi, Aichi, 441-8580, Japan
Education
B.A. in Science (Mar 1994) Faculty of Science, Kyoto University.
M.A. in Science (Mar 1996) Faculty of Science, Kyoto University.
B.A. in Letters (Mar 2000) Faculty of Lettes, Kyoto University.
M.A. in Informatics (Sep 2001) Graduate School of Informatics, Kyoto University
Ph.D. (Mar 2004) Graduate School of Informatics, Kyoto University
Job Experiences
1996.4-1998.3 Sanwa bank
2001.4-2004.3 Kyoto Koka Women’s University, part-time lecturer
2002.4-2004.3 Research Fellow of the Japan Society for the Promotion of Science
2004.4-2008.2 the National Institute of Information and Communications Technology, Researcher
2008.3-2009.12 Intelligent Sensing System Research Center, Toyohashi University of Technology, Specially Appointed Associate Professor
2010.1-2014.12 Electronics-Inspired Interdisciplinary Research Institute (EIIRIS), Toyohashi University of Technology, Tenure-track Associate Professor
2015.1-2020.3 Electronics-Inspired Interdisciplinary Research Institute (EIIRIS), Toyohashi University of Technology, Associate Professor
2020.4- present Department of Computer Science and Engineering, Toyohashi University of Technology, Professor
Publications
Wu, S.*, Kinzuka, Y., Tamura, H., Nakauchi, S., & Minami, T. (20XX). Modulation of Glare Illusion Perception and Pupillary Responses with Visual Acuity and Stimulus Size, Perception, accepted.
Okawa, T., Martinsen, M. M., Tamura, H., Nakauchi, S., Nascimento, S. M. C., & Minami, T. *(20XX). Vertical Asymmetry in Central Colour Evaluation: How Spatial Position and Scene Structure Modulate the Perceived Size of Coloured Regions, Journal of Vision, accepted.
Yamauchi, T., Minami, T., Nakauchi, S., & Tamura, H.* (20XX). Speed perception bias for objects approaching from behind and its implications for robot motion design, IEEE Robotics and Automation Letters, accepted.
Tamura, H.*, Nakauchi, S., & Minami, T. (2026). Task-dependent pupillary responses to glossiness and attractiveness judgments, Journal of Vision, 26(9), 1. https://doi.org/10.1167/jov.26.9.1
Minami, T.*, Terasawa, S., Kinzuka, Y., Sato, F., & Nakauchi, S. (2026). Modulation of perceived time caused by stimulus clarity in object recognition. Attention, Perception, & Psychophysics, 88, 148. doi: 10.3758/s13414-026-03295-8
Kudaka, M.†, Ueda, S.†*, Tamura, H., Minami, T., & Nakauchi, S. (2026). Variance aftereffects in the perception of facial expressions in crowds, Vision Research, 239, 108730. https://doi.org/10.1016/j.visres.2025.108730
Matsubara, Y.†, Tamura, H.†*, Minami, T., & Nakauchi, S. (2026). Subjective Emotions and Physiological Responses During Collision Avoidance with a Virtual Autonomous Mobile Robot. Int J of Soc Robotics 18, 5 (2026). https://doi.org/10.1007/s12369-025-01341-3
Senda, H.†, Martinsen, M. M.†*, Tamura, H., Nakauchi, S., & Minami, T. (2025). Illusory brightness under unconscious processing: Evidence from continuous flash suppression, Consciousness and Cognition, 136, 103943, https://doi.org/10.1016/j.concog.2025.103943.
Tamura, H.†*, Konno, T.†, Ito, K.†, Matsubara, Y., Martinsen, M. M., Nakauchi, S., & Minami, T. (2025). Human Behavior and Comfort During Load Carrying to Autonomous Mobile Robot, International Journal of Social Robotics, https://doi.org/10.1007/s12369-025-01329-z.
Shibusawa, M.†, Hasegawa, Y.†*, Tamura, H., Nakauchi, S., & Minami, T.* (2025). Dynamic vs. static facial color changes: Evidence for terminal color dominance in expression recognition. J Vis. 2025 Oct 1;25(12):8. doi: 10.1167/jov.25.12.8. PMID: 41051158.
Yamada, S.*, Nakakoga, S., Kinzuka, Y., Nakagawa, Y., & Minami, T.* (2025). Discriminating between facial expressions of anger and fear by individuals with high-functioning autism spectrum disorder. Perception, 0(0).
Kobayashi, Y.*, Tamura, H., Nakauchi, S., & Minami, T. (2025). Facial Expression Recognition is Modulated by Approach-Avoidance Behavior, International Journal of Affective Engineering, 2025, Volume 24, Issue 3, Pages 253-266
Yamauchi, T.†, Tamura, H.†*, Minami, T., & Nakauchi, S. (2025). Waist rotation angle as indicator of probable human collision-avoidance direction for autonomous mobile robots, PLOS One, 20(5): e0323632. https://doi.org/10.1371/journal.pone.0323632.
Taniyama, Y.*, Nihei, Y., Minami, T. and Nakauchi, S., Natural color composition induces oddball P3 asymmetry associated with processing fluency, Sci Rep. 2025 Feb 10;15(1):4878.
Hasegawa, Y., Tamura, H., Nakauchi, S., & Minami, T. *(2025). Interaction between facial expression and color in modulating ERP P3. ENeuro, 12(1).
Hasegawa, Y.†, Tamura, H.†*, Kanematsu, T., Yamada, Y., Ishiguro, Y., Nakauchi, S., and Minami, T. Visual cues for moisture perception of facial skin: A pilot study on the effects of enhancing high-spatial-frequency components of skin lightness to decrease perceived moisture levels in young Asian observes, J. Opt. Soc. Am. A 42(5) B23-B33 (2025).
Martinsen, M. M., Yoshino, K., Kinzuka, Y., Sato, F., Tamura, H., Minami, T., and Nakauchi, S. (2024). Facial ambiguity and perception: How face-likeness affects breaking time in continuous flash suppression. Journal of Vision, 24(9), 18-18.
Hasegawa Y, Tamura H*, Nakauchi S, Minami T.* Facial expressions affect the memory of facial colors. J Vis. 2024 May 1;24(5):14. doi: 10.1167/jov.24.5.14. PMID: 38814935; PMCID: PMC11148839.
Tamura, H.*, Nakauchi S, Minami T. Glossiness perception and its pupillary response. Vision Res. 2024 Jun;219:108393. doi: 10.1016/j.visres.2024.108393. Epub 2024 Apr 4. PMID: 38579405.
Nguyen, N., Tamura, H.*, Minami, T.*, Nakauchi, S. The effect of facial colour on implicit facial expressions. Cogn Emot. 2023 Nov-Dec;37(7):1290-1297.
Martinsen, M. M.*, Kinzuka, Y., Sato, F., Minami, T., & Nakauchi, S. (2023). Breakthrough Time Depends on Letter Type and Upright Orientation–A Pilot Study using Continuous Flash Suppression–. International Journal of Affective Engineering, 22(2), 157-165.
Taniyama, Y., Suzuki, Y., Kondo, T., Minami, T., & Nakauchi, S. (2023). Pupil dilation is driven by perceptions of naturalness of color composition in paintings. Psychology of Aesthetics, Creativity, and the Arts, 19(4), 866–877. https://doi.org/10.1037/aca0000580
Istiqomah N*, Kinzuka Y, Minami T, Nakauchi S. Brightness Perception in World-Centered Coordinates Assessed by Pupillometry. Behav. Sci. 2023, 13(1), 60; https://doi.org/10.3390/bs13010060
Nakauchi, S., Kondo, T., Kinzuka, Y., Taniyama, Y., Tamura, H., Higashi, H., Hine, K., Minami, T., Linhares, J. M. M., and Nascimento, S. M. C.* (2022)Universality and superiority in preference for chromatic composition of art paintings. Scientific Reports, 12, Article 4294 .
Istiqomah N, Suzuki Y*, Kinzuka Y, Minami T, Nakauchi S. Anisotropy in the peripheral visual field based on pupil response to the glare illusion. Heliyon 2022:e09772. https://doi.org/10.1016/j.heliyon.2022.e09772.
Kinzuka Y*, Sato F, Minami T*, Nakauchi S. The effect of red/blue color stimuli on temporal perception under different pupillary responses induced by different equiluminant methods, PLOS ONE, 2022 Jun 21;17(6):e0270110.
Sato F, Shiomoto R, Nakauchi S, Minami T* Backward and forward neck tilt affects perceptual bias when interpreting ambiguous figures, Scientific Reports, 2022 May 4;12(1):7276.
Nakakoga S., Shimizu K., Muramatsu J., Kitagawa T., Nakauchi S., Minami T.* Pupillary response reflects attentional modulation to sound after emotional arousal. Scientific Reports. 2021 Aug 26;11(1):17264.
Kinzuka, Y., Sato, F., Minami, T.*, Nakauchi, S., Effect of glare illusion-induced perceptual brightness on temporal perception. Psychophysiology. 2021 Sep;58(9):e13851.
Minami T*, Azuma K, Nakauchi S (2020) Steady-state visually evoked potential is modulated by the difference of recognition condition. PLoS ONE 15(7): e0235309.
Kinzuka Y., Minami T.*, Nakauchi S. Pupil dilation reflects English /l//r/ discrimination ability for Japanese learners of English: a pilot study. Scientific reports. 2020 May 15;10(1):8052..
Nakakoga S, Higashi H., Muramatsu j., Nakauchi S, Minami T*. Asymmetrical characteristics of emotional responses to pictures and sounds: evidence from pupillometry . PLOS ONE. 2020 Apr 6;15(4):e0230775.
Sato F, Laeng B., Nakauchi S, Minami T*. Cueing the Necker cube: Pupil dilation reflects the viewing-from-above constraint in bistable perception. Journal of Vision. 2020 Apr 9;20(4):7.
Higashi H*, Minami T, Nakauchi S. Cooperative update of beliefs and state-transition functions in human reinforcement learning. Scientific Reports. 2019 Nov 27;9(1):17704.
Suzuki Y., Minami T.*, Nakauchi S. Pupil constriction in the glare illusion modulates the steady-state visual evoked potentials. Neuroscience 2019 Aug 7;416:221-228.
Suzuki Y.*, Minami T., Laeng B., Nakauchi S. Colorful glares: Effects of colors on brightness illusions measured with Pupillometry. Acta Psychologica 2019 Jul;198:102882.
Minami, T.*, Shinkai, T, Nakauchi, S., Hemifield crossings during multiple object tracking affect task performance and steady-state visual evoked potentials. Neuroscience 2019 June; 409:162-168.
Minami T.*, Nakajima K. and Nakauchi S., Effects of face color and background color on facial expression perception., Front. Psychol 2018. 9:1012.
Suzuki, Y., Minami, T*., Nakauchi, S., Association between pupil dilation and implicit processing prior to object recognition via insight. Scientific Reports 2018, 8, 6843
Nihei Y, Minami T*, Nakauchi S. Brain activity related to the judgment of face-likeness. Frontiers in Human Neuroscience 2018, 12, 56. [frontiers]
Higashi H*,Minami T, Nakauchi S. Fluctuation of event-related potentials on transition states. Frontiers in Human Neuroscience 2017, 27, 75. [frontiers]
Nakajima K, Minami T*, Nakauchi S. Interaction between facial expression and color. Scientific Reports 2017, 7, 41019.[Pubmed]
Minami T*, Nakajima K, Linda C, Nakauchi S. The effects of facial color and inversion on the N170 ERP component. Neuroscience, 2015 Dec 17;311:341-8. [Pubmed]
Nakajima K, Minami T*, Nakauchi S.Effects of facial color on the subliminal processing of fearful faces. Neuroscience, 2015 Dec 3;310:472-85. [Pubmed][EurekAlert!]
Yokota Y, Minami T*, Naruse Y, Nakauchi S. Neural processes in pseudo perceptual rivalry: An ERP and time-frequency approach. Neuroscience, 2014 Jun 20;271:35-44. [PubMed]
Nakajima K, Minami T*, Tanabe HC, Sadato N, Nakauchi S. Facial color processing in the face-selective regions: an fMRI study. Human Brain Mapping, 2014 Sep;35(9):4958-64. [PubMed]
Minami T*, Noritake Y, Nakauchi S. Decreased beta-band activity is correlated with disambiguation of hidden figures. Neuropsychologia, 2014 Apr;56:9-16. [PubMed]
Kongthong N, Minami T*, Nakauchi S. Gamma oscillations distinguish mere exposure from other likability effects. Neuropsychologia 2014 Feb;54:129-38. [PubMed]
Kongthong N, Minami T*, Nakauchi S. Semantic processing in subliminal face stimuli: An EEG and tDCS study. Neurosci Lett 2013; 544:141-6. [PubMed]
Hashimoto Y, Minami T*, Nakauchi S. Electrophysiological differences in the processing of affect misattribution. PLoS One 2012;7(11):e49132. [PubMed]
Nakajima K*, Minami T, Nakauchi S. The face-selective N170 component is modulated by facial color. Neuropsychologia 2012;50(10):2499-505. [PubMed]
Minami T*, Goto K, Kitazaki M, Nakauchi S. Effects of color information on face processing using event-related potentials and gamma oscillations. Neuroscience 2011;176:265-73. [PubMed]
Minami T*, Goto K, Kitazaki M, Nakauchi S. Asymmetry of P3 amplitude during oddball tasks reflects the unnaturalness of visual stimuli. Neuroreport 2009;20(16):1471-6. [PubMed]
Minami T*, Inui T. Roles of the prefrontal neurons in delayed matching-to-category task: a modeling study. Neurocomputing 2005;65:609-616.
Minami T*, Inui T. A recurrent neural network model of rule-guided delayed tasks. Neurocomputing 2004;58:761-767.
Minami T*, Inui T. A neural architecture for rule-guided behavior: A simulation of physiological experiments. Psychologia 2004;46(4):268-283.
Grants and Fellowships
KAKENHI, Transformative Research Areas (A): Multilayered analysis of qualia structure underlying unconscious processing, 2026-2028
KAKENHI, Grant-in-Aid for Challenging Research (Exploratory): Mechanisms of improved phonemic discrimination through manipulation of pupil diameter, 2026-
SCAT Research Grant: Estimation of emotional traits using pupillary responses, 2025-2027
Kose Cosmetology Research Foundation: Effects of eye size on facial expression recognition — psychological effects of eye makeup, 2025-2026
KAKENHI, Transformative Research Areas (A): Glare perception and physiological responses — a multifaceted approach to qualia structure science, 2024-2025
KAKENHI, Fund for the Promotion of Joint International Research (International Collaborative Research): Applying pupil-based estimation of cognitive state to real environments, 2023-2028
JSPS Bilateral Program (Open Partnership, Norway): Interaction with virtual reality through pupillometry, 2021-2023
KAKENHI, Grant-in-Aid for Scientific Research (B): Transformation of the cognitive world indexed by pupil diameter, 2020-2023
JSPS Bilateral Program (Open Partnership, Norway): Interaction with information environments created through the pupil, 2019-2020
KAKENHI, Fund for the Promotion of Joint International Research (Fostering Joint International Research): Time-series models toward pupillometry under natural light, 2018-2020
KAKENHI, Grant-in-Aid for Scientific Research on Innovative Areas: Cross-cultural and cross-generational comparison of the interaction between facial colour and expression perception, 2018-2019
INTPART — International Partnerships for Excellent Education and Research (Co-investigator): International Partnership for RITMO Center for Excellent Research, 2018-2021
KAKENHI, Challenging Research (Pioneering) (Co-investigator): Objective measurement of glare perception — toward medical diagnostic support and visual environment assessment based on cognitive neuroscience, 2017-2020
KAKENHI, Grant-in-Aid for Scientific Research (B): Identification of subjective perception without verbal report, 2017-2021
MIC, Strategic Information and Communications R&D Promotion Programme (SCOPE, Young ICT Researchers): R&D of a multi-frequency BMI using steady-state visual evoked potentials, 2014-2015
KAKENHI, Grant-in-Aid for Scientific Research (C): Study of cognitive state transitions using steady-state visual evoked potentials, 2013-2016
KAKENHI, Grant-in-Aid for Challenging Exploratory Research (Co-investigator): Gait training robot achieving optimal body-weight support and free walking — toward zero-gravity rehabilitation, 2013-2014
KAKENHI, Grant-in-Aid for Young Scientists (B): Causal network analysis during insight using EEG and transcranial electrical stimulation, 2011-2012
KAKENHI, Grant-in-Aid for Challenging Exploratory Research (Co-investigator): Omnidirectional gait rehabilitation using intelligent biomechatronics based on brain information, 2011-2012
MIC, Strategic Information and Communications R&D Promotion Programme (SCOPE, Young ICT Researchers): R&D on causal relations in human face information processing, 2010-2012
MHLW, Project for Development of Assistive Devices for Persons with Disabilities (Co-investigator): Development of cognitive BMI technology to support communication for people with severe motor impairment, 2010-2012
KAKENHI, Grant-in-Aid for Scientific Research (B) (Co-investigator): Extraction of kansei information related to individuality from EEG, 2010-2013
MHLW, Health and Welfare Promotion Project for Persons with Disabilities (Co-investigator): Development of cognitive BMI technology to support communication for people with severe motor impairment, 2009
KAKENHI, Grant-in-Aid for Young Scientists (B): Extraction of ambiguous perceptual states by frequency analysis of EEG, 2009-2010
KAKENHI, Grant-in-Aid for Scientific Research (C) (Co-investigator): Development of brain information decoding by time-frequency analysis of local field potentials, 2007-2009
KAKENHI, Grant-in-Aid for Young Scientists (B): How does the brain resolve contradiction? Brain activity dynamics during perceptual rivalry, 2006-2007
Nakatani Foundation, Technology Development Grant (Principal Investigator)
Tateisi Science and Technology Foundation, Research Grant (Principal Investigator)
Hyogo Science and Technology Association, Encouragement Research Grant (Principal Investigator)
Awards
The Author Service Award (2025). Scientific Reports, Springer Nature.
The Editorial Contribution Award (2025). Scientific Reports, Springer Nature.
Paper Award, Japan Society of Kansei Engineering (2023). Kobayashi, Y., Taniyama, Y., Nakauchi, S., & Minami, T. Effects of the strength of face pareidolia on brain activity. Transactions of the Japan Society of Kansei Engineering, 2022, 21(1), 33-39.
ISNIP membership award (2011). Minami, T., Inoue, Y., & Hasegawa, R. Efficient and fatigueless methods of presenting visual stimuli for neurocommunicator system, International Society for Neuroimaging in Psychiatry (ISNIP2011).
ISBET2010 Award (2010). Noritake, Y., Minami, T., & Nakauchi, S. EEG study of insight process of hidden figures, 7th Annual ECNS / ISNIP Conference.
U35 Encouragement Award, Japan Biomagnetism and Bioelectromagnetics Society (2005).