Director and Advisor
Information and Agent Team
Reinforcement Learning Team
Brain Communication Team
Disease Biomarker Team
Meta Cognition Team
Neurotech Application Team



Ryota Kanai
Research Director

Founder & CEO of Araya, Inc. After graduating from the Faculty of Science at Kyoto University in 2000, he received his PhD (Cum Laude) in 2005 from Utrecht University in the Netherlands, where he studied visual information processing in the human brain. After working as a researcher at California Institute of Technology in the U.S. and University College London in the U.K., and as a JST PRESTO researcher and Associate Professor of Cognitive Neuroscience at the University of Sussex in the U.K., he founded Araya, Inc. and worked full time there since 2015.

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Shun-ichi Amari
Research Advisor

Dr Shun-ichi Amari is a mathematical neuroscientist. He is a professor emeritus at the University of Tokyo and a honorary science advisor at RIKEN. He initiated information geometry, which has been widely applied in various fields such as statistics, signal processing, information theory, machine learning and more. He is also one of pioneers in developing mathematical theories of neural networks. He is currently working on integrated information theory and Wasserstein distance using information geometry.

Information and Agent Team

Martin Biehl
Senior Researcher

Martin is a senior researcher at Araya. He has a BSc and MSc in physics from TU Vienna and a PhD in computer science from the University of Hertfordshire. His main research interests is in understanding the emergence of individuality and goal-directedness in dynamical systems. Currently, he focuses on probabilistic planning as inference which is a (relatively) general framework for modelling goal-directed individuals (i.e. agents).

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Pablo Morales
Senior Researcher

Pablo is a researcher at Araya. He received his Ph.D. in Theoretical Particle Physics at The University of Tokyo in 2018. He is a former Japan Society for the Promotion of Science (JSPS) fellow and MEXT scholar. His current research interests include information geometry and complex systems applied to theoretical neuroscience.

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Acer Chang
Researcher

Acer is a post-doctor researcher at Araya. He received his Ph.D at University of Sussex and was a member in Sackler Centre for Consciousness Science from 2012 to 2017. He joined Araya from 2017. His research interest includes theoretical and experimental science of consciousness, machine learning, and artificial intelligence. He currently with his colleagues in Araya proposes and works on the Information Closure Theory of Consciousness (ICT) based on information theory.

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Reinforcement Learning Team

Kai Arulkumaran
Research Team Leader

Kai is a research team lead at Araya and visiting researcher at Imperial College London. He received his B.A. in Computer Science at the University of Cambridge in 2012 and his Ph.D. in Bioengineering at Imperial College London in 2020. He has previously worked at DeepMind, Microsoft Research, Facebook AI Research, Twitter and NNAISENSE. His research interests are deep learning, reinforcement learning, evolutionary computation and theoretical neuroscience.

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Brain Communication Team

Shuntaro Sasai
Research Team Leader

Shuntaro is a Team Leader of the Neurotechnology R&D unit at Araya Inc. After graduating from the College of Arts and Sciences at the University of Tokyo in 2008, he received his Ph.D. in the Graduate School of Education at the University of Tokyo in 2013. Since 2013, he is a member of the Center for Sleep and Consciousness at the University of Wisconsin at Madison. His research interests are in understanding the brain-consciousness relationship and developing brain-machine interface techniques enabling cross-brain communications. Currently, he focuses on modeling the brain’s wiring architectures supporting conscious experience and cognitive functions.

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Arthur Juliani
Senior Researcher

Arthur Juliani is a Senior Research Scientist at Araya Inc. In 2020, he received his PhD from the University of Oregon in Cognitive Neuroscience. Before that, he worked as a Research Engineer at Unity Technologies, where he co-founded the ML-Agents projects, a popular open-source toolkit for training artificial agents in virtual environments. His research focus is the development of biologically inspired and phenomenologically grounded neural network models of perception, cognition, and action.

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Leonardo Barbosa
Senior Researcher

Leonardo is a senior researcher at Araya. He has a BSc and MSc in physics from the University of Sao Paulo, and a PhD in cognitive neuroscience from the Ecole Normale Superieure (PSL). His main research interest is consciousness. More specifically, he is interested in building better scientific explanations of phenomenal consciousness through the use of mathematical models, which informs experiments and allows a better understanding of the neural mechanisms underpinning conscious experience. He is also interested in how we can use this knowledge in order to build artificial intelligence that enhances and extends both cognitive functions and conscious experience.

Motoshige Sato
Intern

Motoshige is Ph.D. student at the Graduate School of Pharmaceutical Sciences, the University of Tokyo. He is interested in Brain-AI symbiosis. He is currently working on brain decoding.

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Yasuo Kabe
Intern

Yasuo is a Ph.D. student in the Department of Mechano-Informatics at the University of Tokyo. His research interest is in developing design principles for human augmentation based on neuroscience.

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Anna Maria Hadjiev
Intern

Anna is a current Masters student at Hokkaido University, with a B.S. in computer science from the University of Wisconsin – Madison. Her interest is natural language processing, especially dialogue systems.

Nao Yukawa
Intern

Nao is in the 4th year of the department of Engineering at the University of Tokyo. He is interested in deep generative learning, multimodal learning, and brain-inspired deep learning models.

Masanori Ue
Intern

Masanori is a master’s student at Nara Institute of Science and Technology (NAIST) and Advanced Telecommunications Research Institute International (ATR). He is interested in consciousness and brain dynamics.

Disease Biomarker Team

Junichi Chikazoe
Research Team Leader

Junichi is a research team leader at Araya. He received his M.D. and Ph.D. from the Graduate School of Medicine, the University of Tokyo. He did his postdoc with Adam K. Anderson at the University of Toronto and Cornell University. After working as an associate professor at National Institute for Physiological Sciences, he joined Araya in 2021. His research interest is creating AI with emotion. He currently focuses on understanding how value/valence emerges from sensory information by combining fMRI and deep learning. Please see his latest work at the following link.

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Haruki Niwa
Intern

Haruki is a master’s student at Aichi Prefectural University. He is interested in machine learning.

Shota Nishiyama
Intern

Shota is a master’s student at Aichi Institute of Technology. His bachelor’s degree is computer science. He is interested in video recognition, image processing, anomalous sound detection, metric learning, and neuroscience.

Yuta Nagai
Intern

Yuta is in the 4th year of the department of Electrical Engineering and Bioscience at Waseda University. He is interested in electroencephalogram (EEG) and machine learning.

Tatsuki Yotsushima
Intern
Ryutaro Hashimoto
Intern

Ryutaro is a master’s student at the University of Michigan, Ann Arbor. He is interested in machine learning and causal inference.

Fuka Kanada
Intern

Huka is in the 2nd year of the department of Marine Biology at the University of Hokkaido. She is interested in animal behavior.

Meta Cognition Team

Ippei Fujisawa
Senior Researcher

Ippei is a researcher at Araya. He recieved his Ph.D in Theoretical Particle Physics at Hokkaido University in 2016. His research interests include deep learning, computer vision and meta learning.

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Hiro Hamada
Researcher

Hiro is a researcher at Araya. He received his Ph.D in systems neuroscience at Okinawa Institute of Science and Technology (OIST) in 2019. His research interests are cognitive neuroscience, computational neuroscience and phenomenology of consciousness.

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Neurotech Application Team

Daisuke Matsuyoshi
Researcher
Yi-Chen Lin
Researcher

Yi-Chen is a post-doctoral researcher at Araya. She received her Ph.D. at National Yang-Ming University in 2019. Her research interest are cognitive neuroscience and neuroimaging.

 

Masaru Kuwabara
Junior Researcher

Masaru received his Ph.D. in cognitive neuroscience from Osaka University. After his postdoc research in neuroeconomics, he joined Araya in 2019. His research interests are consciouness, AI inspired neurosicence and application of neuroTech.

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