研究内容

Material perception

We can recognize objects from visual information. At the same time, we successfully recognize their materials such as wood, metal, fabric, water, fire, and gas. What kind of visual information does the visual system utilize to see the materials? We are interested in the role of image motion signals in material perception. In particular, we reported that the visual system recognizes liquid and its viscosity from visual motion.

  • Kawabe, T. (2017). What property of the contour of a deforming region biases percepts toward liquid? Frontiers in Psychology, section Perception Science, 8:1014. Open access
  • Kawabe, T., & Kogovšek, R. (2017). Image deformation as a cue to material category judgment. Scientific Reports, 7, Article number: 44274.
  • [Conference paper]Kawabe, T., & Nishida, S. (2016). Seeing jelly: judging elasticity of a transparent object. SAP '16 Proceedings of the ACM Symposium on Applied Perception Pages 121-128. Open access
  • Kawabe, T., Maruya, K., & Nishida, S. (2015). Perceptual transparency from image deformation. PNAS, 112(33), E4620-E4627. Open access
  • Paulun, V.C., Kawabe, T., Nishida, S. and R.W. Fleming (2015). Seeing liquids from static snapshots. Vision Research, 115, 163-174. Open access
  • Kawabe, T., Maruya, K., Fleming, R. W., & Nishida, S. (2015). Seeing liquids from visual motion. Vision Research, 109, 125-138. Open access

Visual illusion and its application

Based on scientific knowledge on visual illusion, we try to develop image presentation techniques to edit the appearance of real objects. In particular, we developed Deformation Lamps to make static real objects perceptually dynamic. Recently, we have also developed "Hidden stereo" which enables to present a clear 2D for non-glassed observers while displaying a clear 3D image for glassed observers.


Sense of agency

Sense of agency is a subjective experience wherein an agent feels a control of her/his own action, and through the action, feels a control of external events. We are interested in a question, "Does multimodal perception underpin the determination of sense of agency?" Our tentative answer to this question is "yes". Recently, we found that the disruption of cross-modal grouping bewteen action and its outcome reduced the sense of agency (Kawabe, Roseboom, & Nishida, 2012, 2013). Moreover, we demonstrated that the quantitative aspect of action outcome strongly modulated the sense of agency (Kawabe, 2013). Taken together, we suggest that the sense of agency stems partly from a causality perception based on multimodal grouping. Moreover, recently we found that sense of causality between action and its outcome facilitated the acquisition of action-outcome statistical features (Kawabe, 2013). Causality perception possibly plays an important role for human beings to appropriately interact with their environments. 。

  • Kawabe, T. (2015). Delayed visual feedback of one’s own action promotes sense of control for auditory events. Frontiers in Integrative Neuroscience, 9:57.Open access

  • Kawabe, T. (2013). Side effect of acting on the world: Acquisition of action-outcome statistic relation alters visual interpretation of action outcome. Frontiers in Human Neuroscience, 25, 7:610. doi: 10.3389/fnhum.2013.00610.

  • Kawabe, T., Roseboom, W., and Nishida, S. (2013). The sense of agency is action-effect causality perception based on cross-modal grouping. Proceedings of the Royal Society B: Biological Sciences, 280: 20130991.

  • Kawabe, T. (2013). Inferring sense of agency from the quantitative aspect of action outcome. Consciousness and Cognition, 22, 407-412.

  • Kawabe, T., Roseboom, W., & Nishida, S. (2012). Crossmodal perceptual grouping modulates subjective causality between action and outcome. Presentations at Asia-Pacific Conference on Vision on July 13-15, 2012, Incheon, Korea.