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BR Lab (Matsumoto Lab)
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The lab uses VR to understand and extend human perception of space and time.
AboutAbout the lab
Understanding and extending human senses and behavior
BR Lab (Matsumoto Lab) researches spatial perception, time perception, and related topics using VR (virtual reality), with the theme of understanding and extending human senses and behavior.
Taking on the question of how humans perceive reality, the lab aims to create new experiences that overcome physical constraints such as space, time, and the body.
In spatial perception, the lab studies redirection techniques that exploit the interaction between vision and somatosensation, among other senses.
In time perception, the lab designs and evaluates time modulation methods, and also works on personalization, presenting sensory information tailored to each user's sensory characteristics.
Key terms
- Redirection
- A technique that uses the interaction between vision and somatosensation, among other senses, to enable interaction beyond physical constraints
- Time modulation
- A method of adjusting psychological time while maintaining consistency of causality and timing among multiple users
- Free energy principle
- One theory that describes with a mathematical model how people perceive and predict the world. The lab uses it as a foundation for methods that create illusions
NewsLab news
View More ↗ResearchResearch themes
Using VR and HCI technologies, the lab asks "What is reality?" and aims to implement new experiences freed from the physical constraints of space, time, and the body. It builds mathematical models of human perception to uncover how the brain comes to recognize something as "reality," and conducts research on engineering interventions with VR/HCI technologies based on those models.
*Illustrative imageWalking Through Vast VR Spaces in a Small Physical Space
The lab studies technologies such as Redirected Walking that let people walk around an infinitely large VR space within a small physical space. By manipulating vision, touch, and the vestibular sense, it acts on the brain's spatial cognition.
*Illustrative imageExtending Physical Abilities with Avatars
This research manipulates the movements of an avatar's arms and legs to let people gain physical abilities they do not naturally have, such as an extending arm or a splitting hand. The lab also explores how the body schema changes.
Capturing Perception with Mathematical Models
The lab builds mathematical models of how people perceive and predict the world, using the free energy principle and other frameworks. It aims to create methods for generating illusions based on theory rather than rules of thumb.
MembersFaculty
The members of BR Lab (Matsumoto Lab) consist of faculty, master's students, and undergraduate students.As of 2025
- Assistant ProfessorKeigo Matsumoto
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: “InclusiveGameLab Person-Playing-Virtual-Reality 7 CC-BY-SA” InclusiveGameLab / CC BY-SA 4.0 (cropped)
- Walking Through Vast VR Spaces in a Small Physical Space: “Virtualizer Elite 2 with Rehab Module for Rehabilitation and Therapy” Holger2130 / CC BY-SA 4.0 (cropped)
- Extending Physical Abilities with Avatars: “InclusiveGameLab Person-Playing-Virtual-Reality 4 CC-BY-SA” InclusiveGameLab / CC BY-SA 4.0 (cropped)
- Related lab (身体知能研究室): “REEM-B humanoid robot” Facontidavide at English Wikipedia / Public domain (cropped)
- Related lab (感触工学研究室): “Head-mounted display and wired gloves, Ames Research Center” National Aeronautics and Space Administration. / Public domain (cropped)
- Related lab (田中文英研究室): “SMS robot” Clubfirst / CC BY-SA 4.0 (cropped)
- Related lab (バーチャルリアリティ研究室): “KAT Walk Omni-directional VR Treadmill” Tim Sheerman-Chase / CC BY 2.0 (cropped)
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