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. Author manuscript; available in PMC: 2012 Sep 3.
Published in final edited form as: Behav Processes. 2011 Jan 5;87(1):50–56. doi: 10.1016/j.beproc.2010.12.017

Figure 5.

Figure 5

Results of Stagner and Zentall (2010). Left panel: Acquisition of the preference for discriminative stimuli with a probability of 20% reinforcement over nondiscriminative stimuli with a probability of 50% reinforcement. Middle left panel: Acquisition of the preference for discriminative stimuli with a probability of 20% reinforcement over nondiscriminative stimuli with a probability of 50% reinforcement when the contingencies associated with the spatial choice were reversed. Middle right panel: Acquisition of the preference for discriminative stimuli with a probability of 20% reinforcement over nondiscriminative stimuli with a probability of 50% reinforcement when the alternatives were signaled with shape stimuli. Right panel: Acquisition of the preference for nondiscriminative stimuli with a probability of 50% reinforcement over nondiscriminative stimuli with a probability of 20% reinforcement.