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. Author manuscript; available in PMC: 2009 Nov 1.
Published in final edited form as: Psychol Sci. 2008 Nov;19(11):1169–1177. doi: 10.1111/j.1467-9280.2008.02219.x

Figure 1.

Figure 1

Stimuli and categories used in the Experiments 1 and 2. Each stimulus was a circular sine-wave grating that varied across trials in bar width and bar orientation. The solid lines denote the category boundaries. The stimulus numbers refer to Tables 1 and 2.