L&M: Chapter 10 (Hull-Spence Theory of Discrimination Learning)

The Aversive Character of SΔ- - ______________________ is responsible for the ________________________ seen with ____________________________. - Exposure to the _______ is an _________________. - __________________ produced during the _________ periods ________________ the _______________________________. - The effect of ________________ that ____________________ supports Terrace's view. - _____________ response to the ________.

- Behavioral contrast is responsible for the heightened response seen with discrimination training. - Exposure to the SΔ is an aversive event. - Frustration produced during the SΔ periods increased the intensity of the response to other stimuli. - The effect of drugs that eliminate frustration-induced behavior supports Terrace's view. - Restores response to the SΔ.

Peak Shift Phenomenon- -Differences between the ________________________ and __________________________________: 1) _______________________ for _____________ - This is ______________ by the Hull-Spence model. 2) ____________________ for ____________________________ was NOT ____________________, but to a _____________________________________________. - This _________________ by the Hull-Spence model. 3) _______________________ of _____________ for ________________. - This _____________________ by the Hull-Spence model.

-Differences between the discrimination and non-discrimination generalization gradients: 1) Steeper generalization gradient for discrimination training. - This is supported by the Hull-Spence model. 2) Greatest response for discrimination-training subjects was NOT to the SD, but to a stimulus away from SD opposite the direction of the SΔ. - This is supported by the Hull-Spence model. 3) Higher overall level of response for discrimination training. - This was NOT predicted/supported by the Hull-Spence model.

Development of Conditioned Excitation and Inhibition- According to the Hull-Spence view, discrimination learning develops in THREE stages.

1) Conditioned excitation develops to the SD as the result of reinforcement. 2) Nonreinforcement in the presence of the SΔ results in the development of conditioned inhibition to the SΔ. 3) The excitation and inhibition generalize to other stimuli. - The combined influence of excitation and inhibition determines the level of response to each stimulus.

Development of Conditioned Excitation and Inhibition- 2 Predictions: 1) The Hull-Spence model predicts a ______________________ with _______________ than with ______________________. 2) The ______________________ occurs NOT to the SD, but rather to a ____________________________, and in the ________________ ___________ that of the ______. - This known as the- ________________________.

1) The Hull-Spence model predicts a steeper generalization gradient with discrimination than with non-discrimination training. 2) The maximum response occurs NOT to the SD, but rather to a stimulus other than SD, and in the stimulus direction opposite that of the SΔ. - This known as the- Peak Shift Phenomenon.