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J Exp Psychol Anim Behav Process. 1994 Jan;20(1):32-43.

Quantitative two-process analysis of avoidance conditioning in goldfish.

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Severtsov Institute of Evolutionary Animal Morphology and Ecology, Moscow, Russia.


The shuttlebox performance of goldfish was studied under standardized conditions in a variety of problems--with or without an avoidance contingency, a conditioned stimulus (CS)-termination contingency, and an escape contingency. The effects of CS-only, unconditioned stimulus (US)-only, and explicitly unpaired training were also examined. All the data could be simulated quantitatively with a version of O. H. Mowrer's (1947) 2-process theory expressed in 2 learning equations (1 classical, the other instrumental) and a performance equation. The good fit suggests that the theory is worth developing further with new experiments designed to challenge it.

[Indexed for MEDLINE]

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