Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/22681
Title: STUDY OF THE CHARACTERISTICS OF FAST DEPLOYABLE EEG ELECTRODE
Authors: NG WU CHUN
Keywords: dry EEG electrode, skin impedance, appedageal, skin compression, penetration enhancer, micro-spike electrode
Issue Date: 14-Sep-2010
Source: NG WU CHUN (2010-09-14). STUDY OF THE CHARACTERISTICS OF FAST DEPLOYABLE EEG ELECTRODE. ScholarBank@NUS Repository.
Abstract: In the use of conventional EEG electrode, minimizing EEG measurement noise is important and this is done by reducing skin impedance by means of skin preparation and the use of electrolyte, leading to long set-up and skin impedance stabilization time. This thesis provides the fundamentals for the comprehensive understanding of the factors concerned with resistive bio-potential measurement that cover most of the important time-variant characteristics of skin impedance. The present study showed that skin appendages play a more significant role than the Stratum Corneum in defining skin impedance. This study also showed that both a larger electrolyte-skin contact area and the presence of ethanol and propylene glycol in the electrolyte result in a shorter time for skin impedance to reduce and stabilize. Besides, the effect of compression on skin impedance had also been investigated and the change in skin impedance is found to enhance significantly with additional skin compression. Based on the above studies, two fast deployable dry EEG electrode systems have been proposed, designed, developed and evaluated.
URI: http://scholarbank.nus.edu.sg/handle/10635/22681
Appears in Collections:Ph.D Theses (Open)

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