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Mathematical Engineering Lab
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The lab explores time perception in vision and hearing using mathematical models.
AboutAbout the lab
Exploring the mechanisms of perception with mathematical models
Assistant Professor Kenichi Sawai specializes in mathematical engineering and studies how temporal information obtained through vision and hearing is perceived.
Using Bayesian models and causal inference as clues, the lab studies how temporal information from vision and hearing is integrated into perception, and it also develops psychophysical experiment methods for studying perception.
In the School of Design, Assistant Professor Sawai teaches mathematics-related courses, including mathematical statistics. In the graduate school, Assistant Professor Sawai teaches courses in human informatics, which is the area of specialty.
Depending on the year, Assistant Professor Sawai also teaches project courses on topics such as music informatics, mathematical design, and Kansei modeling.
Key terms
- Bayesian model
- A mathematical model that combines prior expectations with newly obtained information to estimate the most likely answer
- causal inference
- An approach to estimating what caused an observed result
- method of constant stimuli
- An experimental method widely used in psychological experiments that examine how things appear, for example by varying the magnitude of a stimulus
ResearchResearch themes
The lab investigates time perception in vision and hearing, using Bayesian models and causal inference as clues. It also develops psychophysical experiment methods for studying perception.
*Illustrative imageInformation Integration in Audiovisual Time Perception
The lab investigates how temporal information obtained through vision and hearing is integrated in perception. The research keywords are Bayesian models and causal inference.
*Illustrative imageDevelopment of Psychophysical Experiment Methods
The lab works on developing psychophysical experiment methods for studying perception. The research keywords include the method of constant stimuli and maximum likelihood estimation.
MembersFaculty
- Assistant ProfessorKenichi Sawai
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Wooden hourglass 3” User:S Sepp / CC BY-SA 3.0 (cropped)
- Information Integration in Audiovisual Time Perception: “Triangular wave and square wave on oscilloscope screen” User:Xato / CC0 (cropped)
- Development of Psychophysical Experiment Methods: “GRAS Type 45CA Hearing Protector Test Fixture with Aviation Headphones - NIOSH Acoustics Laboratory” Chuck Kardous / Public domain (cropped)
- Related lab (Mathematical Engineering Lab): “Eye iris” che (Please credit as "Petr Novák, Wikipedia" in case you use this outside Wikimedia projects.) / CC BY-SA 2.5 (cropped)
- Related lab (Visual Physiology and Perception Lab): “Eight Ishihara charts for testing colour blindness, Europe Wellcome L0059155” Shinobu Ishihara / Public domain (cropped)
- Related lab (Visual Physiology and Perception Lab): “CIELChab hue wheel at maximum chroma” 8-leaf clover / CC0 (cropped)
- Related lab (Mathematical Biology Lab): “Maritime beacon and a flock of birds on the silt at sunrise, Parque Tejo, Lisbon, Portugal julesvernex2” Jules Verne Times Two / CC BY-SA 4.0 (cropped)
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