In Experiments 2a and 2b, we replicated and extended the results of Experiment 1 by demonstrating with rather different displays that participants can learn to ignore specified feature information. Additionally, in Experiment 2b, the RT benefit on ignore trials appeared more quickly than in Experiment 1. Because the displays in Experiments 1 and 2b were not identical, we cannot make strong statements about the learning rates in the two experiments. Nevertheless, it does seem no table that evidence of a significant ignoring benefit was evident after just 72 trials in Experiment 2b, while in Experiment 1 such a benefit was not evident until near the end of the session, eventhough many more colors were used in Experiment 2b (eight) than in Experiment 1 . For the current experiments, participants in Experiment 1 could ignore 1 out of 4 items initially,while participants in Experiment 2 could ignore 6 out of 12 items initially. Therefore, the rapid emergence of the ignoring benefit in Experiment 2b is likely a function ofthe number of items that participants could ignore.