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. Author manuscript; available in PMC: 2010 Aug 4.
Published in final edited form as: Physiol Behav. 2009 Apr 23;98(1-2):85–93. doi: 10.1016/j.physbeh.2009.04.016

Figure 3.

Figure 3

Mean (±SEM) number of meals per day (top panel), mean meal size (middle panel) and responses emitted (bottom panel) during three progressive unit price schedules (Table 2) in groups of mice (Ns=8) required to emit either nose poke or lever press responses to obtain food