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. Author manuscript; available in PMC: 2011 Jan 1.
Published in final edited form as: J Vis. 2010 Apr 5;10(4):1.1–127. doi: 10.1167/10.4.1

Figure 4.

Figure 4

Relative influence of the compression cue in Experiment 1. (A) For the random diamond group (N = 15), context ellipses were always circles whereas context diamonds had random aspect ratios in sessions 3–5. No difference was observed between subjects’ reliance on the compression cue in the first two (pre-learning) compared to the last two (post-learning) sessions for elliptical test stimuli. However, for diamond test stimuli, the influence of the compression cue was significantly lower in the last two sessions than in the first two sessions. (B) The opposite was true for the random ellipse group (N = 15), for whom the diamond context stimuli were always square, but the ellipse stimuli had random aspect ratios in sessions 3–5: There was no significant change in compression cue influence for diamond stimuli between the first two and the last two sessions, but the influence of the compression cue dropped significantly for ellipse test stimuli. In both groups, the compression cue weights changed significantly more for the shape category whose context stimuli had random aspect ratios in sessions 3–5. Error bars in this and all following figures indicate ± 1 SEM.