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. Author manuscript; available in PMC: 2020 Dec 1.
Published in final edited form as: Behav Processes. 2019 Sep 20;169:103952. doi: 10.1016/j.beproc.2019.103952

Figure 6.

Figure 6.

Semi-log survival plot of inter-response times (IRTs) maintained by a tandem variable-interval (VI) 120-s fixed-ratio (FR) 5 schedule of reinforcement. The data are from a typical rat in Brackney et al. (2011).