Table 1.

Mean and range of trial numbers after artefact rejection in each condition

Main experimentControl experiment
PredictedMispredictedUnpredictedOne-natural-key-higherFour-natural-key-lower
Mean (range)519.60 (485–537)86.95 (81–90)86.20 (80–90)68.70 (54–72)68.40 (54–72)