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. Author manuscript; available in PMC: 2011 May 1.
Published in final edited form as: Neurobiol Aging. 2008 Jul 26;31(5):853–862. doi: 10.1016/j.neurobiolaging.2008.06.004

Figure 1. Delay discounting in young adult and aged rats (Experiment 1).

Figure 1

All rats discounted the value of the large reward (as shown by decreased preference for the large reward) as delays increased (p <.01). However, aged rats showed less discounting than young adults (p <.01).