Print Email Facebook Twitter Tactile, visual, and bimodal P300s: Could bimodal P300s boost BCI performance? Title Tactile, visual, and bimodal P300s: Could bimodal P300s boost BCI performance? Author Brouwer, A.M. van Erp, J.B.F. Aloise, F. Cincotti, F. TNO Defensie en Veiligheid Publication year 2010 Abstract The P300 is a positive peak in EEG occurring after presentation of a target stimulus. For brain-computer interfaces (BCIs), eliciting P300s by tactile stimuli would have specific advantages; the display can be hidden under clothes and keeps the user’s gaze free. In addition, robust classification is especially important for BCIs. This motivated us to investigate P300s in response to tactile and visual stimuli unimodally and bimodally. Tactile stimuli were delivered by tactors around the participant’s waist. Visual stimuli were flashed circles on a monitor, schematically representing the tactors. Participants attended to the vibrations and/or flashes of a “target” presented in a stream of standards. The P300 amplitude for the different modalities was comparable in size and depended on electrode location. Classification accuracy was highest in the bimodal condition. We conclude that bimodal stimuli could enhance classification results within a BCI context compared to unimodal presentations. Subject HumanPCS - Perceptual and Cognitive SystemsBSS - Behavioural and Societal SciencesUser interfaces To reference this document use: http://resolver.tudelft.nl/uuid:9265194a-3b67-4bd0-92a1-05b24419cdd8 DOI https://doi.org/10.3814/2010/967027 TNO identifier 435181 Source SRX Neuroscience Article number 967027 Document type article Files To receive the publication files, please send an e-mail request to TNO Library.