1. Balsam, P. (1984). Relative time in trace conditioning. In J. Gibbon & L. Allan (Eds.),Annals of the New York Academy of Sciences: Vol. 423, Timing and time perception (pp. 211–227). New York: New York Academy of Sciences.
2. Balsam, P. D., &Payne, D. (1979). Intertrial interval and unconditioned stimulus durations in autoshaping.Animal Learning & Behavior,7, 477–482.
3. Black, A. H., &Prokasy, W. F. (1972).Classical conditioning: II: Current research and theory. New York: Appleton-Century-Crofts.
4. Boakes, R. A. (1977). Performance on learning to associate a stimulus with positive reinforcement. In H. Davis & H. M. B. Hurwitz (Eds.),Operant-Pavlovian interactions (pp. 67–101). Hillsdale, NJ: Erlbaum.
5. Buzsaki, G. (1982). The “where is it?” reflex: Autoshaping the orienting response.Journal of the Experimental Analysis of Behavior,37, 461–484.