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. Author manuscript; available in PMC: 2023 Mar 29.
Published in final edited form as: Psychopharmacology (Berl). 2022 Jan 19;239(2):561–572. doi: 10.1007/s00213-021-06048-7

Figure 2. Social reinforcement has higher elasticity of demand than food reinforcement.

Figure 2.

(A) Demand curves for social reinforcement are similar across different door-open times. Abscissa: Response requirement (log scale). Ordinate: % FR 1 number of reinforcers per 30-min session (log scale). (B) Demand curves for food reinforcement are similar in the presence or absence of food restriction. Abscissa: Response requirement (log scale). Ordinate: % FR 1 number of reinforcers per session (log scale). Table 1 shows FR 1 reinforcement rate for each condition and essential values determined from each demand curve. All data show mean ± SEM for 6 rats.