Takumi Yokosaka, Ph.D.

Takumi Yokosaka (横坂 拓巳)
Distinguished Researcher,
Sensory Representation Research Group,
Human Information Science Laboratory,
NTT Communication Science Laboratories,
Nippon Telegraph and Telephone Corporation.


  • 2013.04-
    • NTT Communication Science Laboratories
  • 2015.10-2018.09
    • The Interdisciplinary Graduate School of Science and Engineering, Tokyo Institute of Technology
    • Doctor of Philosophy in Information Processing
  • 2011.04-2013.03
    • Bioinfomatic Engineering, Information Science & Technology, Osaka University
    • Master of Information Science
  • 2007.04-2011.03
    • Electronic and Information Engineering, Engineering, Osaka University
    • Bachelor of Engineering

NTT Communication Science Laboratories,
3-1, Morinosato Wakamiya, Atsugi, Kanagawa, 243-0124, Japan.


  1. Takumi Yokosaka, Yusuke Ujitoko, and Takahiro Kawabe,
    "Force illusion induced by visual illusion: Illusory curve in cursor path is interpreted as unintended force",
    Journal of Vision, 23(4), 5 (2023).
  2. Yusuke Ujitoko, Seitaro Kaneko, Takumi Yokosaka, and Takahiro Kawabe,
    "Falling and heaviness: Heaviness judgment for a visual object which users lift up is influenced by the presentation of the object's falling or staying still",
    Frontiers in Psychology, 14, 1042188 (2023).
  3. Yusuke Ujitoko, Takumi Yokosaka, Yuki Ban and Hsin-Ni Ho,
    "Tracking changes in touch desire and touch avoidance before and after the COVID-19 outbreak",
    Frontiers in Psychology, 13, 1016909 (2022).
  4. Takahiro Kawabe, Yusuke Ujitoko, Takumi Yokosaka, and Scinob Kuroki,
    "Underestimation in temporal numerosity judgments computationally explained by population coding model",
    Scientific Reports, 12, 15632 (2022).
  5. Seitaro Kaneko*, Takumi Yokosaka*, Hiroyuki Kajimoto, and Takahiro Kawabe,
    "A pseudo-haptic method using auditory feedback: the role of delay, frequency, and loudness of auditory feedback in response to a user’s button click in causing a sensation of heaviness",
    IEEE Access, 10, 50008-50022 (2022). (* Equal contribution)
  6. Takahiro Kawabe, Yusuke Ujitoko, and Takumi Yokosaka,
    "The Relationship Between Illusory Heaviness Sensation and the Motion Speed of Visual Feedback in Gesture-Based Touchless Inputs. ",
    Frontiers in Psychology, 13, 811881 (2022).
  7. Takumi Yokosaka and Takahiro Kawabe,
    "Delay and speed of visual feedback of a keystroke cause illusory heaviness and stiffness",
    Frontiers in Neuroscience,16, 761687 (2022).
  8. Yusuke Ujitoko, Yuki Ban, and Takumi Yokosaka,
    "Getting Insights from Twitter: What People Want to Touch in Daily Life",
    IEEE Transactions on Haptics, 15(1), 142-153 (2022).
  9. Takumi Yokosaka, Yosuke Suzuishi and Scinob Kuroki,
    "Feeling illusory textures through a hole: Rotating frame at skin-object interface modifies perceived tactile texture",
    IEEE Transactions on Haptics, 15(2), 304-314 (2022).
  10. Takumi Yokosaka, Scinob Kuroki and Shin'ya Nishida,
    "Describing the sensation of the 'velvet hand illusion' in terms of common materials",
    IEEE Transactions on Haptics, 14(3), 680-685 (2021).
  11. Takahiro Kawabe, Yusuke Ujitoko, Takumi Yokosaka, and Scinob Kuroki,
    "Sense of Resistance for a Cursor Moved by User's Keystrokes",
    Frontiers in Psychology, 12, 652781 (2021).
  12. Takumi Yokosaka, Masanobu Inubushi, Scinob Kuroki and Junji Watanabe,
    "Frequency of Switching Touching Mode Reflects Tactile Preference Judgment",
    Scientific Reports, 10, 3022 (2020).
  13. Takumi Yokosaka, Scinob Kuroki, Junji Watanabe and Shin'ya Nishida,
    "Estimating tactile perception by observing explorative hand motion of others",
    IEEE Transactions on Haptics, 11(2), 192-203 (2018).
  14. Scinob Kuroki, Takumi Yokosaka, and Junji Watanabe,
    "Sub-Second Temporal Integration of Vibro-Tactile Stimuli:
    Intervals between Adjacent, Weak, and Within-Channel Stimuli Are Underestimated.",
    Frontiers in Psychology, 8, 1295 (2017).
  15. Takumi Yokosaka, Scinob Kuroki, Junji Watanabe and Shin'ya Nishida,
    "Linkage between free exploratory movements and subjective tactile ratings",
    IEEE Transactions on Haptics, 10(2) 217-225 (2017).
  16. Takumi Yokosaka, Scinob Kuroki, Shin'ya Nishida and Junji Watanabe,
    "Apparent time interval of visual stimuli is compressed during fast hand movement",
    PLoS ONE, 10(4), e0124901 (2015).
  17. Takumi Yokosaka, Hiroyuki Iizuka, Tomoko Yonemura, Daisuke Kondo, Hideyuki Ando and Taro Maeda,
    "Alternating images of congruent and incongruent movement creates the illusion of agency",
    Scientific Reports, 4, 6201 (2014).

Under construction.

  1. 横坂拓巳(分担翻訳(7章, 8章共訳, 11章), 編集協力)
    ラファエル・A・カルヴォ(著), ドリアン・ピーターズ(著), 渡邊淳司(監訳), ドミニク・チェン(監訳)
    ビー・エヌ・エヌ新社 (2017.01.24).


This figure represents my research interests as visualized by conducting the similarity rating between papers and the multidimensional scaling analysis. The numbers in the figure correspond to the ordered list numbers of the PAPERS in the PUBLICATION above.

© 2020- Takumi Yokosaka.