siamese fighting fish with other fishAfter 12–34 sessions of exposure to this FR 1 time table, EXT, as defined in the 1st test, was in effect for 8–13 classes. Finally, the FR 1 agenda was reinstated for 11–21 sessions. During the first FR 1 situation, for Fish 2A EXT was introduced although responding did not appear stable as the responding was on an upward trajectory and the subsequent extinction situation was expected to decrease responding. During the last FR 1 situation for Fish 4A, the experiment was terminated after 21 periods. To examine the role of the dependency among the ring swimming response and mirror presentation on reaction maintenance, responding was in comparison when reinforcers were brought under an FR 1 time table of mirror presentation to those introduced in response to a yoked variable time VT time table. Three experimentally naïve fish were uncovered to an FR 1 time table of mirror presentation as described in Experiment 1.