Biomedical Engineering Systems and Technologies: 5th by Giovanna Sansoni, Franco Docchio (auth.), Joaquim Gabriel,

By Giovanna Sansoni, Franco Docchio (auth.), Joaquim Gabriel, Jan Schier, Sabine Van Huffel, Emmanuel Conchon, Carlos Correia, Ana Fred, Hugo Gamboa (eds.)

This booklet constitutes the completely refereed post-conference complaints of the fifth overseas Joint convention on Biomedical Engineering structures and applied sciences, BIOSTEC 2012, held in Vilamoura, Portugal, in February 2012. The 26 revised complete papers provided including one invited lecture have been rigorously reviewed and chosen from a complete of 522 submissions. The papers hide a variety of themes and are geared up in 4 common topical sections on biomedical electronics and units; bioinformatics types, equipment and algorithms; bio-inspired platforms and sign processing; future health informatics.

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Extra info for Biomedical Engineering Systems and Technologies: 5th International Joint Conference, BIOSTEC 2012, Vilamoura, Portugal, February 1-4, 2012, Revised Selected Papers

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The application of electrolyte and the electrodes, even when typical EEG caps are used, requires expert assistance. The setup process is lengthy as it includes preparing the skin, applying the gel, positioning the electrodes (or the cap) and ensuring that the EEG signal quality level is acceptable. Additionally, the user (or expert) has to remove the electrolyte and clean the user’s head afterwards, and also clean and dry the electrodes (and the cap) that were used. This also takes time and requires additional effort.

C Springer-Verlag Berlin Heidelberg 2013 24 V. Mihajlovi´c, G. Garcia-Molina, and J. Peuscher 1. Cumbersome and inconvenient procedures to prepare the user before BCI operation, low comfort during the BCI operation, and issues in detaching the system at the end of the usage. 2. Lower accuracy of the BCI command classification algorithms, especially when deployed outside lab conditions, leading to a lower information transfer rate (ITR). 3. , long calibration procedure. 4. Unpleasant and intrusive interaction with a BCI system that results in users being aversive to the use of BCIs.

Classification accuracy for three setups with the optimal selection of 3 electrodes for PSD computation: a) Dry contact electrodes; b) Water-based electrodes c) Conductive gel electrodes of using the channels with the lowest noise for dry and gel electrodes, irrespective of the approach used for noise estimation. The effect for water-based electrodes is not so pronounced. 3 SSVEP Discrimination Power and Electrode Selection The second feature that we explored for optimal electrode selection was the discrimination level of the PSD of the RVS during the stimuli period versus PSD of the RVS during the non-stimuli period.

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