I am studying visual information processing in the brain, especially how motion information of moving objects is processed in the visual system. I am also interested in emotional impressions of colors and forms, Japanese onomatopoeia, structure of human personality, and psychological data analysis.
Attractive Factors of My Research
We see things without special effort. In fact, however, an enormous amount of information is processed for seeing objects. Computers have become superior to humans in recognition to some specified objects, but humans are still much better than computers at recognizing various kinds of objects in various environments. Investigating into the human visual system, which can accomplish very difficult tasks without trouble, is very exciting and meaningful.
In experiencing flight simulator, we feel moving in an environment even if we do not actually move. This phenomenon indicates that humans perceive their own movements from visual information. I have revealed characteristics of self-motion perception from visual motion information by conducting psychophysical experiments. Based on the collected data, I modeled information processing of visual motion in self-motion perception. I am also studying visual illusion called motion contrast /motion assimilation; when a physically static stimulus surrounded by moving stimuli appears to move in the direction opposite to that of the surround motion, it is called motion contrast. When the center appears to move in the same direction, it is called motion assimilation. I discovered the conditions for motion contrast and motion assimilation. Furthermore, I found and reported new facts about perception of visual art and the dazzling feeling by glare. I also examined impressions of colors and personality structure, and perceptual dimensions of visual material perception using statistical techniques for signal processing.
Major Books and Papers
- Hanada, M. (2020). Food-texture dimensions expressed by Japanese onomatopoeic words. Journal of Texture Studies, 51(3), 398-411.
- Hanada, M. (2019). Associations of visual forms with colors: The minor role of emotion as the mediator. Color Research & Application, 44(4), 568-580.
- Hanada, M. (2019). Effects of peripheral gradient of color saturation on the feeling of being dazzled. Perception, 48(5), 412-427.
- Hanada, M. (2018). Correspondence analysis of color -emotion associations. Color Research & Application, 43(2), 224-237.
- Hanada, M. (2016). Using Japanese onomatopoeias to explore perceptual dimensions in visual material perception. Perception, 45(5), 568-587.
- Hanada, M. (2015). Effects of colors on the feeling of being dazzled evoked by stimuli with luminance gradients. Perceptual and Motor Skills, 121(1), 219-232.
- Hanada, M. (2013). Analyses of color emotion for color pairs with independent component analysis and factor analysis. Color Research and Application, 38(4), 297-308.
- Hanada, M. (2012). Luminance profiles of luminance gradients affect the feeling of dazzling. Perception, 41(7), 791-802.
- Hanada, M. (2012). Difference between highlight and object colors enhances glossiness. Perceptual and Motor Skills, 114(3), 735-747.
- Hanada, M. (2012). Investigation of center?surround interaction in motion with reaction time for direction discrimination. Vision Research, 59, 34-44.
- Hanada, M. (2010). Differential effect of luminance contrast reduction and noise on motion induction. Perception, 39(11), 1452-1465.
- Hanada, M. (2005). Phenomenal regression to the frontal and natural picture. Vision Research, 45(22), 2895-2909.
- Hanada, M. (2005). An algorithmic model of heading perception. Biological Cybernetics, 92(1), 8-20.
- Hanada, M. (2005). Computational analyses for illusory transformations in the optic flow field and heading perception in the presence of moving objects. Vision Research, 45(6), 749-758.
- Hanada, M. (2004). Effects of the noise level on induced motion. Vision Research, 44(15), 1757-1763.