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A stealthy neural recorder for the study of behaviour in primates

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Author(s)
Oh, SaehyuckJekal, JanghwanWon, JinyoungLim, Kyung SeobJeon, Chang-YeopPark, JunghyungYeo, Hyeon-GuKim, Yu GyeongLee, Young HeeHa, Leslie JaesunJung, Han HeeYea, JunwooLee, HyeokjunHa, JeongdaeKim, JinmoLee, DoyoungSong, SoojeongSon, JieunYu, Tae SangLee, JungminLee, SanghoonLee, JaehongKim, Bong HoonChoi, Ji-WoongRah, Jong-CheolSong, Young MinJeong, Jae-WoongChoi, Hyung JinXu, ShengLee, YoungjeonJang, Kyung-In
Type
Article
Citation
Nature Biomedical Engineering
Issued Date
2024-11
Abstract
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. © The Author(s) 2024.
Publisher
Nature Research
ISSN
2157-846X
DOI
10.1038/s41551-024-01280-w
URI
https://scholar.gist.ac.kr/handle/local/9235
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