Abstract
Measuring and interpretation of brain wave signals through electroencephalography (EEG) is an emerging technology. The technique is traditionally applied in a clinical setting with EEG caps and conductive gels to ensure proper contact through a subject’s hair, and anticipate inter-subject anthropometric variations. Development of dry electrodes offers the potential to develop wearable EEG headsets. Such devices could induce medical and commercial applications. In this paper, we evaluate a prototype EEG headset that actively places electrodes at standardized positions on the subject’s head, where each electrode is applied with equal pressure. The system is designed for use with dry electrodes. Our research delivers a better understanding on the link between general level of comfort and possible useful clear data signals, that can be used in brain computer interfaces (BCI). The present study is confined to the impact of adjustable electrodes pressure on level of user comfort only. Levels of discomfort are assessed in twelve participants, wearing an EEG headset with controllable electrode pressure exerted at 14 locations. Of-the-shelf dry electrodes are used. In a first session, evenly distributed pressure is increased and afterwards decreased in fixed time intervals, going from 10 kPa to 30 kPa and vice versa with steps of 2 kPa. In a second session, a subject specific acceptable pressure level is retrieved from the data of the first session and constantly applied for 30 min. During this intervention, level of discomfort is assessed in a VAS-scale. Additional observation and surveys yields insights on user experience in wearing a pressure exerting EEG headset.
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References
Wolpaw, J.R., Wolpaw, E.W.: Brain-computer interfaces: something new under the sun. Brain-Comput. Interfaces: Princ. Pract. 3–12 (2012)
Teplan, M.: Fundamentals of EEG measurement. Meas. Sci. Rev. 2(2), 1–11 (2002)
Tautan, A.-M., Mihajlovic, V., Chen, Y.-H., Grundlehner, B., Penders, J., Serdijn, W.A. (eds.): Signal quality in dry electrode EEG and the relation to skin-electrode contact impedance magnitude. In: BIODEVICES (2014)
Lacko, D.: The application of 3D anthropometry for the development of headgear-a case study on the design of ergonomic brain-computer interfaces (2017)
Bousseta, R., El Ouakouak, I., Gharbi, M., Regragui, F.: EEG based brain computer interface for controlling a robot arm movement through thought. IRBM 39, 129–135 (2018)
Mihajlović, V., Grundlehner, B., Vullers, R., Penders, J.: Wearable, wireless EEG solutions in daily life applications: what are we missing? IEEE J. Biomed. Health Inform. 19(1), 6–21 (2015)
Hairston, W.D., Whitaker, K.W., Ries, A.J., Vettel, J.M., Bradford, J.C., Kerick, S.E., et al.: Usability of four commercially-oriented EEG systems. J. Neural Eng. 11(4), 046018 (2014)
Nijboer, F., Van De Laar, B., Gerritsen, S., Nijholt, A., Poel, M.: Usability of three electroencephalogram headsets for brain–computer interfaces: a within subject comparison. Interact. Comput. 27(5), 500–511 (2015)
Verwulgen, S., Vleugels, J., Lacko, D., Haring, E., De Bruyne, G., Huysmans, T. (eds.): Thickness of compressed hair layer: a pilot study in a manikin. In: Proceedings of the 7th International Conference on 3D Body Scanning Technologies, 3DBST 2016, Lugano, Switzerland, 30 November–1 December 2016 (2016)
Chi, Y.M., Wang, Y., Wang, Y.-T., Jung, T.-P., Kerth, T., Cao, Y. (eds.): A practical mobile dry EEG system for human computer interfaces. In: International Conference on Augmented Cognition. Springer (2013)
Estepp, J.R., Christensen, J.C., Monnin, J.W., Davis, I.M., Wilson, G.F. (eds.): Validation of a dry electrode system for EEG. In: Proceedings of the Human Factors and Ergonomics Society Annual Meeting. SAGE Publications, Los Angeles (2009)
Jurcak, V., Tsuzuki, D., Dan, I.: 10/20, 10/10, and 10/5 systems revisited: their validity as relative head-surface-based positioning systems. Neuroimage 34(4), 1600–1611 (2007)
Faes, N., Vandemergel, M., Van Hove, F., Willems, D.: Solution. Internally available: Artesis Hogeschool Antwerpen 2009–2010
Pheasant, S., Haslegrave, C.M.: Bodyspace, Anthropometry, Ergonomics and the Design of Work. Taylor and Francis Group, London (2006)
GmbH RD: A Fireworks of Creativity - Singapore Celebrates red dot Winners Gelsenkirchener Straße 181, 45309 Essen, Germany (2010). https://en.red-dot.org/4253.html. Accessed Feb 2018
Verwulgen, S., Lacko, D., Vleugels, J., Vaes, K., Danckaers, F., De Bruyne, G., et al.: A new data structure and workflow for using 3D anthropometry in the design of wearable products. Int. J. Ind. Ergon. 64, 108–117 (2018)
Lacko, D., Huysmans, T., Parizel, P.M., De Bruyne, G., Verwulgen, S., Van Hulle, M.M., et al.: Evaluation of an anthropometric shape model of the human scalp. Appl. Ergon. 48, 70–85 (2015)
Lacko, D., Huysmans, T., Vleugels, J., De Bruyne, G., Van Hulle, M.M., Sijbers, J., et al.: Product sizing with 3D anthropometry and k-medoids clustering. Comput.-Aided Des. 91, 60–74 (2017)
Duvinage, M., Castermans, T., Petieau, M., Hoellinger, T., Cheron, G., Dutoit, T.: Performance of the Emotiv Epoc headset for P300-based applications. Biomed. Eng. Online 12(1), 56 (2013)
Lacko, D., Vleugels, J., Fransen, E., Huysmans, T., De Bruyne, G., Van Hulle, M.M., et al.: Ergonomic design of an EEG headset using 3D anthropometry. Appl. Ergon. 58, 128–136 (2017)
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This work was financially supported by the University of Antwerp, Industrial Research Fund (Industrieel onderzoeksfonds-IOF).
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Verwulgen, S. et al. (2019). Determining Comfortable Pressure Ranges for Wearable EEG Headsets. In: Ahram, T. (eds) Advances in Human Factors in Wearable Technologies and Game Design. AHFE 2018. Advances in Intelligent Systems and Computing, vol 795. Springer, Cham. https://doi.org/10.1007/978-3-319-94619-1_2
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DOI: https://doi.org/10.1007/978-3-319-94619-1_2
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