| 2021 | ICONIP | Performance Improvement of FORCE Learning for Chaotic Echo State Networks. | Ruihong Wu, Kohei Nakajima, Yongping Pan |
| 2021 | IROS | Wearable Tactile Sensor Suit for Natural Body Dynamics Extraction: Case Study on Posture Prediction Based on Physical Reservoir Computing. | Hidenobu Sumioka, Kohei Nakajima, Kurima Sakai, Takashi Minato, Masahiro Shiomi |
| 2020 | IROS | Shape reconstruction of CCD camera-based soft tactile sensors. | Gabor Soter, Helmut Hauser, Andrew Conn, Jonathan Rossiter, Kohei Nakajima |
| 2019 | ICANN | Echo State Property of Neuronal Cell Cultures. | Tomoyuki Kubota, Kohei Nakajima, Hirokazu Takahashi |
| 2018 | ICANN | Mass-Spring Damper Array as a Mechanical Medium for Computation. | Yuki Yamanaka, Takaharu Yaguchi, Kohei Nakajima, Helmut Hauser |
| 2013 | ICRA | Online learning for behavior switching in a soft robotic arm. | Tao Li, Kohei Nakajima, Rolf Pfeifer |
| 2013 | ICRA | Computing with a muscular-hydrostat system. | Kohei Nakajima, Helmut Hauser, Rongjie Kang, Emanuele Guglielmino, Darwin G. Caldwell, Rolf Pfeifer |
| 2013 | IROS | Spine dynamics as a computational resource in spine-driven quadruped locomotion. | Qian Zhao, Kohei Nakajima, Hidenobu Sumioka, Helmut Hauser, Rolf Pfeifer |
| 2012 | ICRA | Behavior switching using reservoir computing for a soft robotic arm. | Tao Li, Kohei Nakajima, Matteo Cianchetti, Cecilia Laschi, Rolf Pfeifer |
| 2012 | IJCNN | Timing-based control via echo state network for soft robotic arm. | Junichi Kuwabara, Kohei Nakajima, Rongjie Kang, David T. Branson, Emanuele Guglielmino, Darwin G. Caldwell, Rolf Pfeifer |
| 2012 | IROS | Embodiment enables the spinal engine in quadruped robot locomotion. | Qian Zhao, Kohei Nakajima, Hidenobu Sumioka, Xiaoxiang Yu, Rolf Pfeifer |
| 2011 | GECCO | Biologically inspired control of a simulated octopus ARM via recurrent neural networks. | Kohei Nakajima, Tao Li, Naveen Kuppuswamy, Rolf Pfeifer |
| 2010 | ALIFE | Self-organized Segregation Effect on Water Based Self-Assembling Robots. | Aubery Marchel Tientcheu Ngouabeu, Shuhei Miyashita, Rudolf M. Fchslin, Kohei Nakajima, Maurice Gldi, Rolf Pfeifer |
| 2008 | ALIFE | Considering the reconfiguration process of subjective temporal order by using recurrent neural networks. | Kohei Nakajima, Takashi Ikegami |