title: Inter-stimulus interval study for the tactile point-pressure brain-computer interface.
abstract: The paper presents a study of an inter-stimulus interval (ISI) influence on a tactile point-pressure stimulus-based brain-computer interface's (tpBCI) classification accuracy. A novel tactile pressure generating tpBCI stimulator is also discussed, which is based on a three-by-three pins' matrix prototype. The six pin-linear patterns are presented to the user's palm during the online tpBCI experiments in an oddball style paradigm allowing for "the aha-responses" elucidation, within the event related potential (ERP). A subsequent classification accuracies' comparison is discussed based on two ISI settings in an online tpBCI application. A research hypothesis of classification accuracies' non-significant differences with various ISIs is confirmed based on the two settings of 120 ms and 300 ms, as well as with various numbers of ERP response averaging scenarios.
authors.forename: Kensuke
authors.initials: K
authors.lastname: Shimizu
authors.forename: Shoji
authors.initials: S
authors.lastname: Makino
authors.forename: Tomasz M
authors.initials: TM
authors.lastname: Rutkowski
mesh_terms: D000328:Adult; D062207:Brain-Computer Interfaces; D005071:Evoked Potentials; D006801:Humans; D008297:Male; D014110:Touch; D055815:Young Adult