Saehyuck Oh, Janghwan Jekal, Jinyoung Won, Kyung Seob Lim, Chang-Yeop Jeon, Junghyung Park, Hyeon-Gu Yeo, Yu Gyeong Kim, Young Hee Lee, Leslie Jaesun Ha, Han Hee Jung, Junwoo Yea, Hyeokjun Lee, Jeongdae Ha, Jinmo Kim, Doyoung Lee, Soojeong Song, Jieun Son, Tae Sang Yu, Jungmin Lee, Sanghoon Lee, Jaehong Lee, Bong Hoon Kim, Ji-Woong Choi, Jong-Cheol Rah, Young Min Song, Jae-Woong Jeong, Hyung Jin Choi, Sheng Xu, Youngjeon Lee, Kyung-In Jang
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A stealthy neural recorder for the study of behaviour in primates
By monitoring brain neural signals, neural recorders allow for the study of neurological mechanisms underlying specific behavioural and cognitive states. However, the large brain volumes of non-human primates and their extensive range of uncontrolled movements and inherent wildness make it difficult to carry out covert and long-term recording and analysis of deep-brain neural signals. Here we report the development and performance of a stealthy neural recorder for the study of naturalistic behaviours in non-human primates. The neural recorder includes a fully implantable wireless and battery-free module for the recording of local field potentials and accelerometry data in real time, a flexible 32-electrode neural probe with a resorbable insertion shuttle, and a repeater coil-based wireless-power-transfer system operating at the body scale. We used the device to record neurobehavioural data for over 1 month in a freely moving monkey and leveraged the recorded data to train an artificial intelligence model for the classification of the animals’ eating behaviours.
期刊介绍:
Nature Biomedical Engineering is an online-only monthly journal that was launched in January 2017. It aims to publish original research, reviews, and commentary focusing on applied biomedicine and health technology. The journal targets a diverse audience, including life scientists who are involved in developing experimental or computational systems and methods to enhance our understanding of human physiology. It also covers biomedical researchers and engineers who are engaged in designing or optimizing therapies, assays, devices, or procedures for diagnosing or treating diseases. Additionally, clinicians, who make use of research outputs to evaluate patient health or administer therapy in various clinical settings and healthcare contexts, are also part of the target audience.