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CNT/PDMS-based canal-typed ear electrodes for inconspicuous EEG recording
Joong Hoon Lee1, Seung Min Lee, Hang Jin Byeon
1Department of Bio-convergence Engineering, College of Health Science, Korea University, Seoul 136-100, Korea.
Journal of Neural Engineering
|June 26, 2014
Summary
New ear-based electrodes offer discreet electroencephalogram (EEG) monitoring. These carbon nanotube devices are biocompatible and suitable for brain-computer interfaces and ubiquitous healthcare applications.
Area of Science:
- Biomedical Engineering
- Neuroscience
- Materials Science
Background:
- Traditional electroencephalogram (EEG) monitoring requires scalp electrodes, limiting private recordings in public.
- Existing systems are often cumbersome and visually obtrusive.
Purpose of the Study:
- To develop a small, user-friendly, and biocompatible electrode for inconspicuous EEG monitoring.
- To integrate EEG recording with auditory stimulation for auditory brain-computer interfaces (BCI).
Main Methods:
- Fabrication of carbon nanotube polydimethylsiloxane (CNT/PDMS)-based canal-type ear electrodes (CEE).
- Evaluation of electrode performance using standard EEG paradigms (alpha rhythms, N100 AEP, SSVEP, ASSR).
- Testing of CNT/PDMS bio- and skin-compatibility.
Main Results:
- Successful feasibility studies demonstrating EEG recording capabilities with the fabricated electrodes.
- Proof of CNT/PDMS biocompatibility and skin compatibility.
Conclusions:
- The developed CEEs are suitable for clinical EEG monitoring.
- These electrodes can be utilized in ubiquitous healthcare and advanced brain-computer interfaces.
- The ear-based design enables discreet and convenient EEG acquisition.
