A dataset of EEG and EOG recordings during a BCI task with a participant with ALS.
A substantial part of these data have been already published in Jaramillo-Gonzalez, Wu, Tonin, et al. (2021).
At the time of the first recording the patient was artificially fed, artificially ventilated and already in Locked-In State since he was not able to use eye-tracker-based AAC devices anymore.
Recordings have been performed at the patient's house during 11 visits. Each visit consists of one or more consecutive days during which BCI sessions have been conducted. Data belonging to the same visit are stored in the same subfolder.
For more information about the recordings, please refer to Tonin, Jaramillo-Gonzalez, et al. (2020) and Jaramillo-Gonzalez, Wu, Tonin, et al. (2021).
During the BCI session the participant had to reply to known yes/no questions by moving the eyes in two different ways.
Each session consists of blocks of usually 20 trials. Each trial is formed by:
Data have been acquired with a 16 channel EEG amplifier (V-Amp DC, Brain Products, Germany) with Ag/AgCl active electrodes.
Data have been acquired at 500Hz, and are stored in the raw format directly provided by Brain Product software.
Each session consists in 3 files:
Channel names use standard EEG 10-20 names, except for the following names:
Channel | 10-20 |
---|---|
L1 | F3 |
L2 | AF3 |
R1 | F4 |
R2 | AF4 |
EOGU | SO1 |
EOGD | IO1 |
EOGL | LO1 |
EOGR | LO2 |
Markers have been sent throw serial port and identify the type of the trial and the start time of each part of the trial. An exaustive explanation can be found in Jaramillo-Gonzalez, Wu, Tonin, et al. (2021), but for reference here is report a summary explanatory table:
Meaning | Yes trial | No trial | Open trial |
---|---|---|---|
Session start | S9 | S9 | S9 |
Baseline | S10 | S11 | S12 |
Stimulus | S5 | S6 | S7 |
Response | S4 | S8 | S13 |
Feedback | S1 | S2 | S3 |
Session end | S15 | S15 | S15 |