Rescorla (1968)

Probability of shock in the presence and absence of cs in fear conditioning.

Journal of Comparative and Physiological Psychology, 66(1), 1-5

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DOI

Reference

Rescorla, R. A. (1968). Probability of shock in the presence and absence of cs in fear conditioning. Journal of Comparative and Physiological Psychology, 66(1), 1-5. https://doi.org/10.1037/h0025984

What Rests on This

1 mechanism cites this source. Each finding below is quoted as it appears on that mechanism's own page.

Classical Conditioning Memory Systems

Definition

What is learned is the predictive relation, not mere pairing: presenting the US when the CS is absent weakens fear conditioning, showing that CS–US contingency determines how much is learned