FBn

The type of feedback classes to be included into the calculation can be controlled by these arguments. Each argument defines a weight for the corresponding feedback class, by which a feedback class is multiplied before the overall sum is calculated. A zero tells ERTS not to consider the corresponding feedback class.

 Example for aborting a block by setting a learning criterion

SESSION

MAXERROR 20 0 50 1 0 1          ; Abort block if 50% of last 20 trials have been answered
          ; incorrectly or not at all (feedback class 1 and 3)
RUNBLOCK blkname 200          ; Run 200 valid trials at maximum

MAXERROR 0   0          ; Disable learning criterion
RUNBLOCK Blk 120          ; Run 120 valid trials