Hayato Idei, Dr. Eng.

Affiliations

Section Chief, National Center of Neurology and Psychiatry, Tokyo, Japan

Research Interests

Computational Neurophenomenology, Cognitive Developmental Robotics, Computational Psychiatry, Neural Networks

Publications

Journal Papers

1. Hayato Idei, Jun Tani, Tetsuya Ogata, Yuichi Yamashita, “Future shapes present: autonomous goal-directed and sensory-focused mode switching in a Bayesian allostatic network model,” npj Complexity 2, 23, 2025. DOI: https://doi.org/10.1038/s44260-025-00046-y

2. Yuta Takahashi, Hayato Idei, Misako Komatsu, Jun Tani, Hiroaki Tomita, Yuichi Yamashita, “Digital twin brain simulator for real-time consciousness monitoring and virtual intervention using primate electrocorticogram data,” npj Digital Medicine 8, 80, 2025. DOI: https://doi.org/10.1038/s41746-025-01444-1

3. Hayato Idei, Keisuke Suzuki, Yuichi Yamashita, “Awareness of Being: A Computational Neurophenomenological Model of Mindfulness, Mind-wandering, and Meta-attentional Control.” PsyArXiv, 2024. DOI:https://doi.org/10.31234/osf.io/stxu6

4. Hayato Idei and Yuichi Yamashita, "Elucidating multifinal and equifinal pathways to developmental disorders by constructing real-world neurorobotic models," Neural Networks, vol. 169, pp. 57–74, 2024, DOI: 10.1016/j.neunet.2023.10.005

5. Hayato Idei, Wataru Ohata, Yuichi Yamashita, Tetsuya Ogata, and Jun Tani, "Emergence of sensory attenuation based upon the free-energy principle," Scientific Reports 12, 14542, 2022, DOI: https://doi.org/10.1038/s41598-022-18207-7

6. Yuta Takahashi, Shingo Murata, Hayato Idei, Hiroaki Tomita, and Yuichi Yamashita, “Neural network modeling of altered facial expression recognition in autism spectrum disorders based on predictive processing framework,” Scientific Reports, Vol. 11, Article number: 14684, pp. 1–14, 2021, DOI: 10.1038/s41598-021-94067-x

7. Hayato Idei, Shingo Murata, Yuichi Yamashita, and Tetsuya Ogata, "Paradoxical sensory reactivity induced by functional disconnection in a robot model of neurodevelopmental disorder," Neural Networks, Vol. 138, pp. 150–163, 2021, DOI: https://doi.org/10.1016/j.neunet.2021.01.033

8. Hayato Idei, Shingo Murata, Yuichi Yamashita, and Tetsuya Ogata, "Homogeneous intrinsic neuronal excitability induces overfitting to sensory noise: A robot model of neurodevelopmental disorder," Frontiers in Psychiatry, 11:762, 2020, DOI: https://doi.org/10.3389/fpsyt.2020.00762  (Press Release).

9. Hayato Idei, Shingo Murata, Yiwen Chen, Yuichi Yamashita, Jun Tani, and Tetsuya Ogata, "A Neurorobotics Simulation of Autistic Behavior Induced by Unusual Sensory Precision," Computational Psychiatry, Vol. 2, pp. 164–182, 2018, DOI: https://doi.org/10.1162/cpsy_a_00019

International Conference｜*Presenter is underlined

1. Daiki Goto, Hayato Idei, Tetsuya Ogata, “Computational Simulation of Wisconsin Card Sorting Task by Using Variational Recurrent Neural Network Based on the Free Energy Principle”, IEEE/SICE International Symposium on System Integration (SII 2025), Munich, Germany, January 2025.

2. Daiki Goto, Hayato Idei, Tetsuya Ogata, “A computational modeling of the Wisconsin Card Sorting Task as goal-oriented behavior via active inference”, 5th International Workshop on Active Inference (IWAI 2024), Oxford, UK, September 2024.

3. Hayato Idei, Jun Tani, Tetsuya Ogata, Yuichi Yamashita, “Future shapes present: allostatic interoceptive regulation and self-organizing sensory-goal interaction via variational Bayes”, Computational Psychiatry Conference, Minnesota, USA, July 2024.

4. Ryutaro Suzuki, Hayato Idei, Yuichi Yamashita, and Tetsuya Ogata, "Hierarchical Variational RNN Modeling of Sensory Attenuation with Temporal Delay in Action-Outcome", In Proceedings of IEEE International Conference on Development and Learning and on Epigenetic Robotics (ICDL-EpiRob 2023), Macau, China, November 2023. DOI: 10.1109/ICDL55364.2023.10364405

5. Hayato Idei, Jun Tani, Tetsuya Ogata, Yuichi Yamashita, “Surviving Uncertainty: Exploring Open-ended Allostatic Planning in a Homeostatic Variational Recurrent Neural Network”, International Symposium on Predictive Brain and Cognitive Feeling, Tokyo, Japan, July 2023.

6.  Yuichi Yamashita, Hayato Idei, “Similarities and contrasts of computational pathways to schizophrenia and autism spectrum disorders:implications from a developmental neurorobotics model of predictive processing”, Computational Psychiatry Conference, Dublin, Ireland, July 2023.

7. Hayato Idei, Wataru Ohata, Yuichi Yamashita, Tetsuya Ogata, Jun Tani, “An account of sensory attenuation by free energy principle”, IEEE International Conference on Development and Learning and on Epigenetic Robotics Workshop StEPP’21, Online, August 2021.

8. Hayato Idei, Shingo Murata, Yuichi Yamashita, and Tetsuya Ogata, “Altered Sense of Self Induced by Functional Disconnection in a Hierarchical Neural Network: A Neuro–Robotics Study,” International Consortium on Hallucination Research and Related Symptoms Kyoto Satellite Meeting (ICHR 2018 Kyoto), Accepted for Poster Presentation, Kyoto, Japan, October, 2018.

9. Hayato Idei, Shingo Murata, Yuichi Yamashita, and Tetsuya Ogata, “Altered Behavioral Flexibility and Generalization Induced by Reduced Heterogeneity of Intrinsic Neuronal Excitability: A Neurorobotics Study,” WPA XVII World Congress of Psychiatry, Accepted for Oral Presentation, Berlin, Germany, October 2017.

10. Hayato Idei, Shingo Murata, Yiwen Chen, Yuichi Yamashita, Jun Tani, and Tetsuya Ogata, "Reduced Behavioral Flexibility by Aberrant Sensory Precision in Autism Spectrum Disorder: A Neurorobotics Experiment," In Proceedings of the Seventh Joint IEEE International Conference on Development and Learning and on Epigenetic Robotics (ICDL-EpiRob 2017), Accepted for Oral Presentation, Lisbon, Portugal, September 2017. DOI: 10.1109/DEVLRN.2017.8329817

Domestic Conference

See Japanese page.

Education and Work Experience

November, 2024 –

National Center of Neurology and Psychiatry

Project Section Chief

April, 2022 – October, 2024

National Center of Neurology and Psychiatry

Research Fellow of Japan Society for the Promotion of Science (JSPS) PD

October, 2020 – March, 2021

Research Intern, Okinawa Institute of Science and Technology, Cognitive Neurorobotics Research Unit (Prof. Jun Tani)

April, 2019 – September, 2021

Doctor of Engineering, Dept. of Intermedia Studies + Embodiment Informatics, Waseda University

Research Fellow of Japan Society for the Promotion of Science DC1

April, 2017 – September, 2021

Graduate Programs for Embodiment Informatics, Waseda University

April, 2017 – March, 2019

Master of Engineering, Dept. of Intermedia Studies, Waseda University

April, 2013 – March, 2017

Bachelor of Engineering, Dept. of Intermedia Art and Science, Waseda University

Research Grants

April, 2019 – Grants-in-Aid for JSPS Research Fellow

Scholarships and Awards

December, 2017

HP MARS HOME PLANET JAPAN EDUCATION LEAGUE (awarded with the first prize out of 104 contestants)

April, 2017 – 

Scholarship of Graduate Programs for Embodiment Informatics, Waseda University, Japan

April, 2013 – March, 2017

Okuma Memorial Special Scholarship (exemption of tuition fees), Waseda University, Japan