Print Email Facebook Twitter Bacteria Hunt: Evaluating multi-paradigm BCI interaction Title Bacteria Hunt: Evaluating multi-paradigm BCI interaction Author Mühl, C. Gürkök, H. Plass-Oude Bos, D. Thurlings, M.E. Scherffig, L. Duvinage, M. Elbakyan, A.A. Kang, S. Poel, M. Heylen, D. TNO Defensie en Veiligheid Publication year 2010 Abstract The multimodal, multi-paradigm brain-computer interfacing (BCI) game Bacteria Hunt was used to evaluate two aspects of BCI interaction in a gaming context. One goal was to examine the effect of feedback on the ability of the user to manipulate his mental state of relaxation. This was done by having one condition in which the subject played the game with real feedback, and another with sham feedback. The feedback did not seem to affect the game experience (such as sense of control and tension) or the objective indicators of relaxation, alpha activity and heart rate. The results are discussed with regard to clinical neurofeedback studies. The second goal was to look into possible interactions between the two BCI paradigms used in the game: steady-state visually-evoked potentials (SSVEP) as an indicator of concentration, and alpha activity as a measure of relaxation. SSVEP stimulation activates the cortex and can thus block the alpha rhythm. Despite this effect, subjects were able to keep their alpha power up, in compliance with the instructed relaxation task. In addition to the main goals, a new SSVEP detection algorithm was developed and evaluated. © 2010 The Author(s). Subject HumanPCS - Perceptual and Cognitive SystemsBSS - Behavioural and Societal SciencesPhysicsInformation SocietyBrain-computer interfacingConcentrationGameMultimodal interactionNeurofeedbackRelaxationSteady-state visually-evoked potentials To reference this document use: http://resolver.tudelft.nl/uuid:47094791-14a6-4882-b014-96c67455fdc2 DOI https://doi.org/10.1007/s12193-010-0046-0 TNO identifier 425706 ISSN 1783-7677 Source Journal on Multimodal User Interfaces, 4 (1), 11-25 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.