FIGURE 2. Pm and s.d. results from experiment 2 (N = 8).
From the following article:
Discrete fixed-resolution representations in visual working memory
Weiwei Zhang & Steven J. Luck
Nature 453, 233-235(8 May 2008)
doi:10.1038/nature06860

a, Pm; b, s.d.; the numbers within the panels provide the means. In b, the lines show the s.d. predictions of a pure resource model (black dashed line), the slots+averaging model (grey solid line), and the slots+resources model (black dotted line). Error bars show within-subjects 95% confidence intervals26.
