Kajornvut Ounjai, Ph.D.
+66 (0)2-470-9365
+66 (0)2-470-9391
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Research Interests:
  • Signal processing
  • Evaluative decision making
  • Dopaminergic system
  • Metacognition
  • Eyetracking Application
  • Gamification in education


  • 2016 – 2019 Kyushu University, Ph.D. in Systems Life Sciences
  • 2012 – 2015 King Mongkut’s University of Technology Thonburi (KMUTT)Master of Biological Engineering program, GPA 4.00
  • 2008 – 2012 King Mongkut’s University of Technology Thonburi (KMUTT)Bachelor of Computer Engineering program, GPA 3.27

Honors and Awards

  • Royal Thai Government Scholarship program from 2016 to 2019
  • 3rd Prize of Graduate Consortium Award in the 4th ICIEV 2015, Kitakyushu, Japan
  • 1st runner up of iMedbot 2014, Bring life, Brighten the world, from the title “Swarm robot for Autism”
  • Honorable mention award in Mobile game contest at SIPA game award 2010, Bangkok, Thailand


Journal Articles
  • Xu, J., Zommara, N. M., Ounjai, K., Takahashi, M., Kobayashi, S., Matsuda, T. and Lauwereyns, J., 2020, “Urgency Promotes Affective Disengagement: Effects From Bivalent Cues on Preference Formation for Abstract Images”, Frontiers in Psychology, Vol. 11, pp. 1404.
  • Angsuwatanakul, T., O’Reilly, J., Ounjai, K., Kaewkamnerdpong, B. and Iramina, K.,  2020, “Multiscale Entropy as a New Feature for EEG and fNIRS Analysis”, Entropy, Vol. 22, No. 2, pp. 189.
  • Wolf, A., Ounjai, K., Takahashi, M., Kobayashi, S., Matsuda, T. and Lauwereyns, J., 2019, “Evaluative Processing of Food Images: Longer Viewing for Indecisive Preference Formation”, Frontiers in Psychology, Vol. 10, pp. 608.
  • Ounjai, K., Kobayashi, S., Takahashi, M., Matsuda, T., & Lauwereyns, J. (2018). Active Confirmation Bias in the Evaluative Processing of Food Images. Scientific reports, 8(1), 16864.
  • Wolf, A., Ounjai, K., Takahashi, M., Kobayashi, S., Matsuda, T., & Lauwereyns, J. (2018). Evaluative processing of food images: A conditional role for viewing in preference formation. Frontiers in Psychology, 9.
  • Zommara, N. M., Takahashi, M., Ounjai, K., & Lauwereyns, J. (2018). A gaze bias with coarse spatial indexing during a gambling task. Cognitive neurodynamics, 12(2), 171- 181.
Conference Proceedings
  • Ounjai, K., Kobayashi, S., & Lauwereyns, J. (2019, November). Effects of Predictive Information on Pupil Dilation during the Evaluation of Food Images. In 2019 12th Biomedical Engineering International Conference (BMEiCON) (pp. 1-5). IEEE.
  • Santatiwongchai, S., Kaewkamnerdpong, B., Jutharee, W., & Ounjai, K. (2016, July). BLISS: Using robot in learning intervention to promote social skills for Autism therapy. In Proceedings of the international Convention on Rehabilitation Engineering & Assistive Technology (p. 16).
  • Ounjai, K., Kaewkamnerdpong, B., & Pichitpornchai, C. (2015, June). Improving parameter estimation in Dynamic Casual Modeling with Artificial Bee Colony optimization. In 2015 International Conference on Informatics, Electronics & Vision (ICIEV) (pp. 1-6).
  • Ounjai, K., & Kaewkamnerdpong, B. (2012, December). Growing Art: The Evolutionary Art Tools. In International Conference on Advances in Information Technology (pp. 126-136).

Poster Presentation

  • Ounjai, K., Shunsuke, K. and Lauwereyns, J. (2017, August). Effects of expectation on gaze fixation on and pupil dilation on during evaluative decision-making. Poster presentation at the European Conference on Visual Perception, Berlin, Germany. 
  • Ounjai, K., Shunsuke, K. and Lauwereyns, J. (2017, September). Modulation of subjective evaluation by predictive information. Poster presentation at the 20th Conference of the European Society for Cognitive Psychology (ESCoP), Potsdam, Germany.
  • Ounjai, K., Shunsuke, K. and Lauwereyns, J. (2017, October). Effect of predictive information in subjective evaluation task. Poster presentation at the Fechner Day 2017, Fukuoka, Japan
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