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. Author manuscript; available in PMC: 2010 Jan 1.
Published in final edited form as: Comp Cogn Behav Rev. 2009 Jan 1;4:17–28. doi: 10.3819/ccbr.2009.40002

Figure 2.

Figure 2

Left, a rhesus monkey, ignorant of the food’s location, collects more information before making a choice. Right, an informed monkey makes a choice without going to the effort of confirming the location of the food. Such selective information seeking suggests that the monkey knows when he knows, and only seeks more information as needed.