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. Author manuscript; available in PMC: 2013 Apr 1.
Published in final edited form as: Cognition. 2012 Jan 2;123(1):33–49. doi: 10.1016/j.cognition.2011.12.004

Figure 1.

Figure 1

Illustration of the experimental task. Participants were asked to explore a hidden pattern (digit “4” constructed from round rods in this example) with a hand-held device, exposing it as a sequence of cross sectional images, and by this means to visualize the target. Alphabetic labels were assigned to the pattern segments and their cross-sections for illustration purposes.