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IV_2a_s3_data description.txt
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IV_2a_s2: This EEG data is motor imagery, including imagination of movements of left hant, right hand, both feet and tongue
22 recording channels:
Channel 1: Fz (10/20 system)
Channel 2: FC3
Channel 3: FC1
Channel 4: FCz
Channel 5: FC2
Channel 6: FC4
Channel 7: C5
Channel 8: C3
Channel 9: C1
Channel 10: Cz
Channel 11: C2
Channel 12: C4
Channel 13: C6
Channel 14: CP3
Channel 15: CP1
Channel 16: CPz
Channel 17: CP2
Channel 18: CP4
Channel 19: P1
Channel 20: Pz
Channel 21: P2
Channel 22: POz
Sampling rate: 250Hz
Bandpass filtered between 0.5Hz and 100Hz
Each channel records 313 samples.
Data details:
IV_2a_s2 is a 4-class EEG data set from 1 session, which in total contains 288 EEG trials with 6887 samples for each trial. Each row is an EEG trial.
The first column codes the class of the trial (i.e., 1/2/3/4). The remaining columns contain samples of the 22 EEG channels.
This starts with 313 samples from channel 1 and ends with 313 samples from channel 22.
Class 1 contains 72 trials*6887 samples; Class 2 contains 72 trials*6887 samples; Class 3 contains 72 trials*6887 samples, and Class 4 contains 72 trials*6887 samples.