Fully Open-Access Passive Dry Electrodes BIOADC: Open-Electroencephalography (EEG) Re-Invented

Sensors

Paolo Bifulco¹  Mario Cesarelli¹  Neethu Sreenivasan²  Upul Gunawardana²  Alistair McEwan³  Craig Jin³  TaraJ. Hamilton⁴  Armin Nikpour⁵  Andrew Wabnitz⁶  GaetanoD. Gargiulo⁶ 

[1] Department of Electrical Engineering and Information Technologies, University “Federico II” of Naples, 80121 Naples, Italy;School of Computing, Engineering and Mathematics, Western Sydney University, Penrith, NSW 2747, Australia;School of Electrical and Information Engineering, The University of Sydney, Camperdown, NSW 2006, Australia;School of Engineering, Macquarie University, Ryde, NSW 2113, Australia;Sydney Medical School, Central, Royal Prince Alfred Hospital, Camperdown, NSW 2006, Australia;The MARCS Institute, Western Sydney University, Milperra, NSW 2214, Australia;

关键词: dry electrodes;    brain computer interface;    electroencephalography;    BCI;    EEG;    BCI2000;   

DOI  :  10.3390/s19040772

来源: DOAJ

【 摘 要 】

The Open-electroencephalography (EEG) framework is a popular platform to enable EEG measurements and general purposes Brain Computer Interface experimentations. However, the current platform is limited by the number of available channels and electrode compatibility. In this paper we present a fully configurable platform with up to 32 EEG channels and compatibility with virtually any kind of passive electrodes including textile, rubber and contactless electrodes. Together with the full hardware details, results and performance on a single volunteer participant (limited to alpha wave elicitation), we present the brain computer interface (BCI)2000 EEG source driver together with source code as well as the compiled (.exe). In addition, all the necessary device firmware, gerbers and bill of materials for the full reproducibility of the presented hardware is included. Furthermore, the end user can vary the dry-electrode reference circuitry, circuit bandwidth as well as sample rate to adapt the device to other generalized biopotential measurements. Although, not implemented in the tested prototype, the Biomedical Analogue to Digital Converter BIOADC naturally supports SPI communication for an additional 32 channels including the gain controller. In the appendix we describe the necessary modification to the presented hardware to enable this function.

【 授权许可】

Unknown