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Cover legend: Inverted two-tone image of a human face (Mooney face) used to examine the role of high-frequency gamma-band activity during perceptual closure, the coherent perception of an incomplete image. Although Mooney faces are easily identified as faces when presented in the upright orientation, they are difficult to recognize when inverted. For more information, see the article by Grützner et al. in this issue (pages 8342–8352).