Recent advances in wireless epicortical and intracortical neuronal recording systems

Bowen Ji, Zekai Liang, Xichen Yuan, Honglai Xu, Minghao Wang, Erwei Yin, Zhejun Guo, Longchun Wang, Yuhao Zhou, Huicheng Feng, Honglong Chang, Jingquan Liu

Research output: Contribution to journalReview articlepeer-review

21 Scopus citations

Abstract

An implantable brain-computer interface (BCI) has proven to be effective in the field of sensory and motor function restoration and in the treatment of neurological disorders. Using a BCI recording system, we can transform current methods of human interaction with machines and the environment, especially to help those with cognitive and mobility disabilities regain mobility and reintegrate into society. However, most reported work has focused on a simple aspect of the whole system, such as electrodes, circuits, or data transmission, and only a very small percentage of systems are wireless. A miniature, lightweight, wireless, implantable microsystem is key to realizing long-term, real-time, and stable monitoring on freely moving animals or humans in their natural conditions. Here, we summarize typical wireless recording systems, from recording electrodes, processing chips and controllers, wireless data transmission, and power supply to the system-level package for either epicortical electrocorticogram (ECoG) or intracortical local field potentials (LFPs)/spike acquisition, developed in recent years. Finally, we conclude with our vision of challenges in next-generation wireless neuronal recording systems for chronic and safe applications.

Original languageEnglish
Article number140401
JournalScience China Information Sciences
Volume65
Issue number4
DOIs
StatePublished - Apr 2022

Keywords

  • neuronal recording system
  • power supply
  • processing chips
  • recording electrodes
  • system-level package
  • wireless data transmission
  • wireless implant

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