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. Author manuscript; available in PMC: 2018 Mar 1.
Published in final edited form as: Addict Biol. 2015 Nov 24;22(2):303–317. doi: 10.1111/adb.12323

Figure 3. Remifentanil demand is consistent regardless of the order of price, demonstrating that time or satiation do not confound the results.

Figure 3

A-B) Economic demand for remifentanil when it is free (A; Q0) and demand elasticity (B; α) were consistent regardless of whether remifentanil prices were presented in ascending or descending order in the intermittent version of the BE task (n = 6).