The effects of Pavlovian CSs on two food-reinforced baselines— with and without noncontingent shock
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Two experiments explored the effects of Pavlovian (tone-shock) CS+, CS−, and truly random control (TRC) contingencies on two different food-reinforced instrumental baselines.Abstract:
Two experiments explored the effects of Pavlovian (tone-shock) CS+, CS−, and truly random control (TRC) contingencies on two different food-reinforced instrumental baselines. One food-reinforced baseline contained noncontingent shock, while the other did not. In the first experiment, a TRC contingency was shown to produce suppression of food-reinforced responding, while a CS− contingency did not. When noncontingent shock was added to the baseline, however, the TRC stimuli failed to produce suppression, and the CS− contingency increased response rates over baseline level. In a second experiment, the effects of TRC and CS+ contingencies were compared on these same two baselines. While the CS+ produced suppression on both shock and no-shock baselines, the TRC contingency again produced suppression on only the no-shock baseline.read more
Citations
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Journal ArticleDOI
Reconsidering Conditioned Inhibition
TL;DR: The findings that inhibition is less pervasive than and not always mutually exclusive with excitation suggest that the original view of inhibition as the opposite of conditioned excitation is no longer viable, but rejection of the original conception of inhibition does not invalidate the theoretical utility of inhibited as a construct in other paradigms.
References
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Journal ArticleDOI
Pavlovian Conditioning and Its Proper Control Procedures
TL;DR: This "truly random" control procedure leads to a new conception of Pavlovian conditioning postulating that the contingency between CS and US, rather than the pairing of CS andUS, is the important event in conditioning.
Journal ArticleDOI
Probability of shock in the presence and absence of CS in fear conditioning.
TL;DR: 2 experiments indicate that CS-US contingency is an important determinant of fear conditioning and that presentation of US in the absence of CS interferes with fear conditioning.
Journal ArticleDOI
Conditioned inhibition of fear resulting from negative CS-US contingencies.
TL;DR: Two experiments are reported which indicate that negative contingencies between CSs and shock set up conditioned inhibitors, and support the general hypothesis that CS-US contingency is an important factor in fear conditioning.
Book ChapterDOI
Informational Variables in Pavlovian Conditioning
TL;DR: It is suggested that although the informational intuition serves an initially useful purpose, it does not provide an adequate conceptualization around which the understanding of Pavlovian conditioning can be organized.
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