Soft, curved electrode systems capable of integration on the auricle as a persistent brain–computer interface

Norton, James J.  S.; Lee, Dong Sup; Lee, Jung Woo; Lee, Woosik; Kwon, Ohjin; Won, Phillip; Jung, Sung-Young; Cheng, Huanyu; Jeong, Jae-Woong; Akce, Abdullah; Umunna, Stephen; Na, Ilyoun; Kwon, Yong Ho; Wang, Xiao-Qi; Liu, ZhuangJian; Paik, Ungyu; Huang, Yonggang; Bretl, Timothy; Yeo, Woon-Hong; Rogers, John A.

doi:10.1073/pnas.1424875112

Soft, curved electrode systems capable of integration on the auricle as a persistent brain–computer interface

Journal Article · Mon Mar 16 00:00:00 EDT 2015 · Proceedings of the National Academy of Sciences of the United States of America

DOI:https://doi.org/10.1073/pnas.1424875112· OSTI ID:1356186

Norton, James J. S. ^[1]; Lee, Dong Sup ^[2]; Lee, Jung Woo ^[3]; Lee, Woosik ^[4]; Kwon, Ohjin ^[4]; Won, Phillip ^[5]; Jung, Sung-Young ^[6]; Cheng, Huanyu ^[7]; Jeong, Jae-Woong ^[8]; Akce, Abdullah ^[9]; Umunna, Stephen ^[10]; Na, Ilyoun ^[11]; Kwon, Yong Ho ^[5]; Wang, Xiao-Qi ^[12]; Liu, ZhuangJian ^[13]; Paik, Ungyu ^[14]; Huang, Yonggang ^[7]; Bretl, Timothy ^[15]; Yeo, Woon-Hong ^[4]; Rogers, John A. ^[5]

Univ. of Illinois, Urbana-Champaign, IL (United States). Neuroscience Program; Office of Scientific and Technical Information (OSTI)
Virginia Commonwealth Univ., Richmond, VA (United States). Dept. of Chemical and Life Science Engineering and Dept. of Mechanical and Nuclear Engineering
Univ. of Illinois, Urbana-Champaign, IL (United States). Dept. of Materials Science and Engineering; Hanyang Univ., Seoul (Korea, Republic of). Dept. of Nuclear Engineering. Dept. of Materials Science and Engineering
Virginia Commonwealth Univ., Richmond, VA (United States). Dept. of Mechanical and Nuclear Engineering
Univ. of Illinois, Urbana-Champaign, IL (United States). Dept. of Materials Science and Engineering
Univ. of Illinois, Urbana-Champaign, IL (United States). Dept. of Materials Science and Engineering; Pohang Univ. of Science and Technology (POSTECH) (Korea, Republic of). Dept. of Mechanical Engineering
Northwestern Univ., Evanston, IL (United States). Dept. of Civil and Environmental Engineering and Mechanical Engineering and Center for Engineering and Health and Skin Disease Research Center
Univ. of Colorado, Boulder, CO (United States). Dept. of Electrical, Computer, and Energy Engineering
Google Inc., Mountain View, CA (United States)
Univ. of Illinois, Urbana-Champaign, IL (United States). Dept. of Molecular and Integrative Physiology
Univ. of Illinois, Urbana-Champaign, IL (United States). Dept. of Materials Science and Engineering; Pohang Univ. of Science and Technology (POSTECH) (Korea, Republic of). Dept. of Chemical Engineering
Northwestern Univ., Chicago, IL (United States). Feinberg School of Medicine
Inst. of High Performance Computing, Connexis (Singapore)
Hanyang Univ., Seoul (Korea, Republic of). Dept. of Nuclear Engineering. Dept. of Materials Science and Engineering
Univ. of Illinois, Urbana-Champaign, IL (United States). Dept. of Aerospace Engineering

Some recent advances in electrodes for noninvasive recording of electroencephalograms expand opportunities collecting such data for diagnosis of neurological disorders and brain–computer interfaces. Existing technologies, but, cannot be used effectively in continuous, uninterrupted modes for more than a few days due to irritation and irreversible degradation in the electrical and mechanical properties of the skin interface. We introduce a soft, foldable collection of electrodes in open, fractal mesh geometries that can mount directly and chronically on the complex surface topology of the auricle and the mastoid, to provide high-fidelity and long-term capture of electroencephalograms in ways that avoid any significant thermal, electrical, or mechanical loading of the skin. Experimental and computational studies establish the fundamental aspects of the bending and stretching mechanics that enable this type of intimate integration on the highly irregular and textured surfaces of the auricle. Furthermore, cell level tests and thermal imaging studies establish the biocompatibility and wearability of such systems, with examples of high-quality measurements over periods of 2 wk with devices that remain mounted throughout daily activities including vigorous exercise, swimming, sleeping, and bathing. Demonstrations include a text speller with a steady-state visually evoked potential-based brain–computer interface and elicitation of an event-related potential (P300 wave).

View Accepted Manuscript (DOE)

Research Organization:: Univ. of Illinois, Urbana, IL (United States); Virginia Commonwealth Univ., Richmond, VA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

Grant/Contract Number:: SC0005436

OSTI ID:: 1356186

Journal Information:: Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Issue: 13 Vol. 112; ISSN 0027-8424

Publisher:: National Academy of Sciences, Washington, DC (United States)Copyright Statement

Country of Publication:: United States

Language:: English

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Analysis of miniaturization effects and channel selection strategies for EEG sensor networks with application to auditory attention detection Narayanan, Abhijith Mundanad; Bertrand, Alexander IEEE Transactions on Biomedical Engineering https://doi.org/10.1101/593194	journal	April 2019
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60 APPLIED LIFE SCIENCES
97 MATHEMATICS AND COMPUTING
auricle integration
brain–computer interface
soft electronics
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Soft, curved electrode systems capable of integration on the auricle as a persistent brain–computer interface

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