The results of this experiment appear in [this thesis.][1] This project's preregistration is [here.][2] In the previous experiment, subjects attended to or ignored vertically oriented gray rectangles and black and white checkerboards. The unexpected object could be a vertical or horizontal gray bar. The results rejected our initial predictions. Instead of the item most similar to the attended set being seen most often, there appeared to be a novelty effect; the horizontal gray rectangle was noticed more often than the vertical one. Conversely, when subjects ignored the gray rectangles, they were no more likely to notice the horizontal, distinct-from-ignored rectangle than they were the vertical, match-to-ignored rectangle; both noticing rates were at floor. Because this pattern is so odd, we are replicating these findings with an even more strictly controlled paradigm. In the previous experiment, the sets of shapes differed on two dimensions; shape and internal content (pattern vs. solid). Here the two sets differ only in shape. The vertical and horizontal rectangles are equally similar to the circles, but vary in similarity to the rectangles. This removes a possible confound, and may raise noticing rates for the unexpected objects when ignoring rectangles away from floor. If our previous pattern replicates, it suggests that this arises from different characteristics of the enhancement and suppression filters. If, however, we do not replicate our previous pattern, it suggests it was borne of some interaction between stimulus choice and unexpected object. [1]: https://www.ideals.illinois.edu/items/105273 [2]: https://osf.io/zc34p