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. Author manuscript; available in PMC: 2006 Feb 24.
Published in final edited form as: Psychol Bull. 2004 Sep;130(5):769–792. doi: 10.1037/0033-2909.130.5.769

Figure 1.

Figure 1

Choice between a smaller reward, available sooner (SS), and a larger reward, available later (LL). The curved lines represent change in subjective value as a function of time. The heights of the bars represent the actual reward amounts. T1 = Time 1; T2 = Time 2.