CNT/PDMS-based canal-typed ear electrodes for inconspicuous EEG recording

Joong Hoon Lee, Seung Min Lee, Hang Jin Byeon, Joung Sook Hong, Kwangsuk Park, Sang Hoon Lee

Research output: Contribution to journalArticleResearchpeer-review

27 Citations (Scopus)

Abstract

Objective. Current electroencephalogram (EEG) monitoring systems typically require cumbersome electrodes that must be pasted on a scalp, making a private recording of an EEG in a public place difficult. We have developed a small, user friendly, biocompatible electrode with a good appearance for inconspicuous EEG monitoring. Approach. We fabricated carbon nanotube polydimethylsiloxane (CNT/PDMS)-based canal-type ear electrodes (CEE) for EEG recording. These electrodes have an additional function, triggering sound stimulation like earphones and recording EEG simultaneously for auditory brain-computer interface (BCI). The electrode performance was evaluated by a standard EEG measurement paradigm, including the detection of alpha rhythms and measurements of N100 auditory evoked potential (AEP), steady-state visual evoked potential (SSVEP) and auditory steady-state response (ASSR). Furthermore, the bio- and skin-compatibility of CNT/PDMS were tested. Main results. All feasibility studies were successfully recorded with the fabricated electrodes, and the biocompatibility of CNT/PDMS was also proved. Significance. These electrodes could be used to monitor EEG clinically, in ubiquitous health care and in brain-computer interfaces.

Original languageEnglish
Article number046014
JournalJournal of Neural Engineering
Volume11
Issue number4
DOIs
StatePublished - 1 Aug 2014

Fingerprint

Ear Canal
Carbon Nanotubes
Canals
Polydimethylsiloxane
Electroencephalography
Carbon nanotubes
Electrodes
Bioelectric potentials
Brain-Computer Interfaces
Brain computer interface
Earphones
Alpha Rhythm
Auditory Evoked Potentials
Visual Evoked Potentials
Monitoring
Feasibility Studies
baysilon
Scalp
Biocompatibility
Health care

Keywords

  • BCI
  • CNT/PDMS
  • Ear electrode
  • Electroencephalogram (EEG)
  • Inconspicuous recording
  • U-healthcare

Cite this

Lee, Joong Hoon ; Lee, Seung Min ; Byeon, Hang Jin ; Hong, Joung Sook ; Park, Kwangsuk ; Lee, Sang Hoon. / CNT/PDMS-based canal-typed ear electrodes for inconspicuous EEG recording. In: Journal of Neural Engineering. 2014 ; Vol. 11, No. 4.
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CNT/PDMS-based canal-typed ear electrodes for inconspicuous EEG recording. / Lee, Joong Hoon; Lee, Seung Min; Byeon, Hang Jin; Hong, Joung Sook; Park, Kwangsuk; Lee, Sang Hoon.

In: Journal of Neural Engineering, Vol. 11, No. 4, 046014, 01.08.2014.

Research output: Contribution to journalArticleResearchpeer-review

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AU - Lee, Sang Hoon

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N2 - Objective. Current electroencephalogram (EEG) monitoring systems typically require cumbersome electrodes that must be pasted on a scalp, making a private recording of an EEG in a public place difficult. We have developed a small, user friendly, biocompatible electrode with a good appearance for inconspicuous EEG monitoring. Approach. We fabricated carbon nanotube polydimethylsiloxane (CNT/PDMS)-based canal-type ear electrodes (CEE) for EEG recording. These electrodes have an additional function, triggering sound stimulation like earphones and recording EEG simultaneously for auditory brain-computer interface (BCI). The electrode performance was evaluated by a standard EEG measurement paradigm, including the detection of alpha rhythms and measurements of N100 auditory evoked potential (AEP), steady-state visual evoked potential (SSVEP) and auditory steady-state response (ASSR). Furthermore, the bio- and skin-compatibility of CNT/PDMS were tested. Main results. All feasibility studies were successfully recorded with the fabricated electrodes, and the biocompatibility of CNT/PDMS was also proved. Significance. These electrodes could be used to monitor EEG clinically, in ubiquitous health care and in brain-computer interfaces.

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