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Takahashi-Karikawa Lab
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A lab that studies how people and machines can coexist safely.

AboutAbout the lab
The right relationship between humans and machines.
The Takahashi-Karikawa Lab studies how to improve the safety of large, complex systems in which humans play the main role in ensuring safety.
Focusing on aviation systems and nuclear power plants, the lab conducts practical research in partnership with people working in the field.
In addition to human cognitive models and the perspective of behavioral economics, the lab develops technologies that estimate a person's state from biological information such as visual information, heart rate variability, and brain activity.
The lab also studies the social acceptance of advanced technologies such as AI and nuclear power, drawing on the concept of subjective risk perception.
Key terms
- Human factors
- The characteristics of the humans who operate machines and systems. A perspective that is essential when thinking about safety
- Resilience
- The ability to respond well and maintain safety even when something unexpected happens
- Social acceptance
- How people in society view and accept technologies such as AI and nuclear power
ResearchResearch themes
The lab aims to improve the safety of large, complex systems in which humans play the main role in ensuring safety. Focusing on aviation systems and nuclear power plants, research groups carry out practical research that draws on knowledge from cognitive science and human physiology.
*Illustrative imageImproving the safety of aviation systems
The lab studies human factors in air traffic control in cooperation with active air traffic controllers and airlines. Centered on resilience, a key concept of Safety-II, it proposes systems that can also be used for training in the field.
*Illustrative imageCollaboration between humans and highly automated systems
Using a driving simulator and cognitive experiment methods, the lab works to improve the safety of highly automated systems. It also studies how to estimate a driver's state from human physiological indicators.
*Illustrative imageHazard sensitivity and risk-taking tendency
The lab investigates how people perceive risk and how they act, using behavioral experiments and brain measurement with fNIRS. Topics include risk perception of nuclear power generation, the conditions under which judgment biases (cognitive biases) arise, and the social acceptance of AI and nuclear power.
MembersFaculty
The Takahashi-Karikawa Lab consists of faculty members, doctoral, master's, and undergraduate students, and a secretary.As of 2026
- ProfessorMakoto Takahashi
- Associate ProfessorDaisuke Karikawa
- Assistant ProfessorYuto Horiuchi
VoicesStudent voices
Compiled from answers by students who were in the lab. Ratings and reviews reflect individual students' experiences, not the lab's official views.
Students who take part in an interview may receive a thank-you gift worth ¥1,000, regardless of what they say.
On a 4-point scale, ● marks where students' answers fall
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Okajima LabFaculty of Engineering, Department of Mechanical and Aerospace EngineeringAdvanced Fluid Machinery Systems Research FieldThe information on this page is compiled by the LabLog team from the lab's public information and interviews. For corrections or removal requests, please contact LabLog, not the lab.
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: “Boeing 747-8I flight deck Beltyukov” Alex Beltyukov / CC BY-SA 3.0 (cropped)
- Improving the safety of aviation systems: “Exterior of Athens–Ben Epps Airport control tower in Athens, Georgia 10” Harrison Keely / CC BY 4.0 (cropped)
- Collaboration between humans and highly automated systems: “Ds-low-100” FWeidner / CC BY-SA 4.0 (cropped)
- Hazard sensitivity and risk-taking tendency: “FNIRS 2023” Mentorklaspsy / CC BY-SA 4.0 (cropped)
- Related lab (Mizutani-Kuji Lab): “Dr. Vitalii Mocharskyi during experiments on laser processing” Vitterok / CC BY 4.0 (cropped)
- Related lab (Yusa-Yoshioka Lab): “Olympus EPOCH 600” Boevaya mashina / CC BY-SA 4.0 (cropped)
- Related lab (Iga Lab): “M-1 rocket turbopump” Selevercin at English Wikipedia / CC BY 3.0 (cropped)
- Related lab (Okajima Lab): “Kochendes wasser02” user:Markus Schweiss / CC BY-SA 3.0 (cropped)
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