Abstract
Following simultaneous discrimination training with pigeons, in which responding to the S−was reinforced on half of the trials and responding to the S− was never reinforced, we examined the effect on the S− of presenting the S− by itself and the effect on the S+ of presenting the S− by itself (relative to an S− or an S− for which there had been no single-stimulus presentations). For Group A−, responding to the S− presented by itself was always reinforced, whereas for Group A−, such responding was extinguished. For Group B−, responding to the S− presented by itself was always reinforced, whereas for Group B+, responding was extinguished. Although both Group A+ and Group A−tended to avoid their associated S− (relative to a control S−), Group A+ avoided its associated S− less than did Group A−. In contrast, although for Group B−, presentation of the S− alone increased the pigeons’ preference for its associated S−(relative to a control S+), for Group B−, presentation of the S−alone had little effect on its preference for its associated S+. These results suggest that presentation of one stimulus from a simultaneous discrimination has two independent and sometimes opposite effects on the other discriminative stimulus. First, it reduces the strength of within-event conditioning between the S+ and the S−, and second, if the value of the singly presented stimulus has increased, some of its newly acquired value will transfer retroactively to the stimulus with which it was originally paired.
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Clement, T. S., Weaver, J. E., Sherburne, L. M., &Zentall, T. R. (1998). Simultaneous discrimination learning in pigeons: Value of S− affects the relative value of its associated S+.Quarterly Journal of Experimental Psychology,51B, 363–378.
Dorrance, B. R., Kaiser, D. H., &Zentall, T. R. (1998). Value transfer in a simultaneous discrimination by pigeons: The value of the S+ is not specific to the simultaneous discrimination context.Animal Learning & Behavior,26, 257–263.
Fersen, L. von, Wynne, C. D. L., Delius, J. D., &Staddon, J. E. R. (1991). Transitive inference formation in pigeons.Journal of Experimental Psychology: Animal Behavior Processes,17, 334–341.
Rescorla, R. A. (1983). Effect of separate presentation of the elements on within-compound learning in autoshaping.Animal Learning & Behavior,11, 439–446.
Rescorla, R. A., &Durlach, P. J. (1981). Within-event learning. In N. E. Spear & R. R. Miller (Eds.),Information processing in animals: Memory mechanisms (pp. 81–111). Hillsdale, NJ: Erlbaum.
Zentall, T. R., &Edwards, C. A. (1984). Categorical color coding by pigeons.Animal Learning & Behavior,12, 249–255.
Zentall, T. R., &Sherburne, L. M. (1994). Transfer of value from S+ to S− in a simultaneous discrimination.Journal of Experimental Psychology: Animal Behavior Processes,20, 1–8.
Zentall, T. R., Sherburne, L. M., Roper, K. L., &Kraemer, P. J. (1996). Value transfer in a simultaneous discrimination appears to result from within-event Pavlovian conditioning.Journal of Experimental Psychology: Animal Behavior Processes,22, 68–75.
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This research was supported by National Science Foundation Grant IBN 9414589 and National Institute of Mental Health Grant 55118 to T.R.Z.
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Dorrance, B.R., Zentall, T.R. Within-event learning contributes to value transfer in simultaneous instrumental discriminations by pigeons. Animal Learning & Behavior 27, 206–210 (1999). https://doi.org/10.3758/BF03199676
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DOI: https://doi.org/10.3758/BF03199676