Table 2.
Structure of “BCI” subfield “TrialData”.
| Subfield Name | High-Level Description | Values |
|---|---|---|
| tasknumber | Identification number for task type |
1 = ‘LR’ 2 = ‘UD’ 3 = ‘2D’ |
| runnumber | The run to which a trial belongs | 1–18 |
| trialnumber | The trial number of a given session | 1–450 |
| targetnumber | Identification number for target presented |
1 = right 2 = left 3 = up 4 = down |
| triallength | The length of the feedback control period in s | 0.04 s–6.04 s |
| targethitnumber | Identification number for target selected by BCI control |
1 = right 2 = left 3 = up 4 = down NaN = no target selected; timeout |
| resultind | Time index for the end of the feedback control portion of the trial | Length(trial) − 1000 |
| result | Outcome of trial: success or failure? |
1 = correct target selected 0 = incorrect target selected NaN = no target selected; timeout |
| forcedresult | Outcome of trial with forced target selection for timeout trials: success or failure? |
1 = correct target selected or cursor closest to correct target 0 = incorrect target selected or cursor closest to incorrect target |
| artifact | Does the trial contain an artifact? |
1 = trial contains an artifact identified by technical validation 0 = trial does not contain an artifact identified by technical validation |