Novel Flexible Dry PU/TiN-Multipin Electrodes: First Application in EEG Measurements

• Type: Article in International Conference Proceedings Book
• Date: 2011

Authors

Fiedler, P (Author) Other; Pedrosa, P (Author) Other; Griebel, S (Author) Other; C. Fonseca (Author) FEUP; Vaz, F (Author) Other; Zanow, F (Author) Other; Haueisen, J (Author) Other

Conference proceedings International

Title: 2011 ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY (EMBC)

Pages: 55-58

33rd Annual International Conference of the IEEE Engineering-in-Medicine-and-Biology-Society (EMBS)

Boston, MA, AUG 30-SEP 03, 2011

Indexing

ISI Web of Knowledge - 14 Citations

Scopus - 14 Citations

Other information

Authenticus ID: P-008-1KY

DOI: 10.1109/iembs.2011.6089895

Abstract (EN): Dry biosignal electrodes for electro-encephalography (EEG) are an essential step for realization of ubiquitous EEG monitoring and brain computer interface technologies. We propose a novel electrode design with a specific shape for hair layer interfusion and reliable skin contact. An electrically conductive Titanium-Nitride (TiN) thin layer is deposited on a polyurethane substrate using a multi-phase DC magnetron sputtering technique. In the current paper we describe the development and manufacturing of the electrode. Furthermore, we perform comparative EEG measurements with conventional Ag/AgCl electrodes in a 6-channel setup. Our results are promising, as the primary shape of the EEG is preserved in the signals of both electrodes sets, according to recordings of spontaneous EEG and visual evoked potentials. The variance of both signals is in the same order of magnitude. The Wilcoxon-Mann-Whitney two-sample rank-sum test revealed no significant differences for 25 of the 28 compared signal episodes. Hence, our novel electrodes show equivalent signal quality compared to conventional Ag/AgCl electrodes.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 4