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. Author manuscript; available in PMC: 2010 Mar 11.
Published in final edited form as: Comp Cogn Behav Rev. 2007 Jan 1;2:79–92. doi: 10.3819/ccbr.2008.20005

Figure 8.

Figure 8

Mean percentage correct for trained displays (baseline) and novel-stimulus displays (transfer) at each set size for separate groups of pigeons in the MTS procedure. Error bars represent SEMs. Note. From Figure 7, “Concept learning by pigeons: Matching-to-sample with trial-unique video picture stimuli,” by A. A. Wright et al., 1988, Animal Learning & Behavior, 16, p. 443. Copyright 1988 by the Psychonomic Society. Adapted with permission.