{"url":"/dataset/bnci-2015-004-motor-imagery-dataset-1","name":"BNCI 2015-004 Motor Imagery dataset","full_name":null,"description_markdown":"**Dataset description**\r\n\r\nWe provide EEG data recorded from nine users with disability (spinal cord\r\ninjury and stroke) on two different days (sessions).  Users performed,\r\nfollow- ing a cue-guided experimental paradigm, five distinct mental tasks\r\n(MT).  MTs include mental word association (condition WORD), mental\r\nsubtraction (SUB), spatial navigation (NAV), right hand motor imagery\r\n(HAND) and\r\nfeet motor imagery (FEET). Details on the experimental paradigm are\r\nsummarized in Figure 1.  The session for a single subject consisted of 8\r\nruns resulting in 40 trials of each class for each day.  One single\r\nexperimental run consisted of 25 cues, with 5 of each mental task.  Cues\r\nwere presented in random order.\r\n\r\nEEG was recorded from 30 electrode channels placed on the scalp according\r\nto the international 10-20 system.  Electrode positions included channels\r\nAFz, F7, F3, Fz, F4, F8, FC3, FCz, FC4, T3, C3, Cz, C4, T4, CP3, CPz,CP4,\r\nP7, P5, P3, P1, Pz, P2, P4, P6, P8, PO3, PO4, O1, and O2.  Reference and\r\nground were placed at the left and right mastoid, respectively.  The g.tec\r\nGAMMAsys system with g.LADYbird active electrodes and two g.USBamp\r\nbiosignal\r\namplifiers (Guger Technolgies, Graz, Austria) was used for recording.  EEG\r\nwas band pass filtered 0.5-100 Hz (notch filter at 50 Hz) and sampled at a\r\nrate of 256 Hz.\r\n\r\nThe duration of a single imagery trials is 10 s.  At t = 0 s, a cross was\r\npresented in the middle of the screen.  Participants were asked to relax\r\nand\r\nfixate the cross to avoid eye movements.  At t = 3 s, a beep was sounded to\r\nget the participant’s attention.  The cue indicating the requested imagery\r\ntask, one out of five graphical symbols, was presented from t = 3 s to t =\r\n4.25 s.  At t = 10 s, a second beep was sounded and the fixation-cross\r\ndisappeared, which indicated the end of the trial.  A variable break\r\n(inter-trial-interval, ITI) lasting between 2.5 s and 3.5 s occurred\r\nbefore\r\nthe start of the next trial.  Participants were asked to avoid movements\r\nduring the imagery period, and to move and blink during the\r\nITI. Experimental runs began and ended with a blank screen (duration 4 s)\r\n\r\nReferences\r\n----------\r\n\r\n[1] Scherer R, Faller J, Friedrich EVC, Opisso E, Costa U, Kübler A, et\r\n       al. (2015) Individually Adapted Imagery Improves Brain-Computer\r\n       Interface Performance in End-Users with Disability. PLoS ONE 10(5).\r\n       https://doi.org/10.1371/journal.pone.0123727","description_withheld":null,"homepage":"http://bnci-horizon-2020.eu/database/data-sets","introduced_date":null,"introduced_date_note":null,"introduced_by":null,"license":{"name":"Open access","url":"http://bnci-horizon-2020.eu/database/data-sets"},"modalities":[{"name":"EEG","url":"/datasets/modality/eeg"}],"tasks":[{"name":"Motor Imagery Decoding (left-hand vs right-hand)","url":"/task/motor-imagery-decoding-left-hand-vs-right","datasets_with_task":"/datasets/task/motor-imagery-decoding-left-hand-vs-right"}],"languages":[],"variants":["BNCI 2015-004 Motor Imagery dataset"],"data_loaders":[],"num_papers_in_archive":0,"source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28"},"benchmarks":[],"papers_with_a_benchmark_row":[],"syntology_totals":{"read_at":"2026-09-25T09:33:49+00:00","papers_with_samples":0,"samples_harvested":0,"samples_ran":0,"samples_unverified":0,"pointer_only_for_licence":0,"papers_with_no_sample_that_ran":0,"note":"the per-paper counts above, summed; not a rate"},"papers_note":"The archive never published its papers-using-dataset list; these are papers with a leaderboard row on this dataset's benchmarks."}