scholarly journals Temporal primacy overrides prior training in serial compound conditioning of the rabbit’s nictitating membrane response

1987 ◽  
Vol 15 (4) ◽  
pp. 455-464 ◽  
Author(s):  
E. James Kehoe ◽  
Bernard G. Schreurs ◽  
Peita Graham
Keyword(s):  
Nictitating Membrane ◽  
Prior Training ◽  
Compound Conditioning ◽  
Serial Compound ◽  
Nictitating Membrane Response ◽  
Serial Compound Conditioning

scholarly journals Compound conditioning of the rabbit’s nictitating membrane response: Test trial manipulations

1986 ◽  
Vol 24 (1) ◽  
pp. 79-81 ◽  
Author(s):  
E. James Kehoe ◽  
Bernard G. Schreurs
Keyword(s):  
Test Trial ◽  
Nictitating Membrane ◽  
Compound Conditioning ◽  
Response Test ◽  
Nictitating Membrane Response

Within-compound associations in serial compound conditioning.

1981 ◽  
Vol 7 (3) ◽  
pp. 228-241 ◽  
Author(s):  
Peter C. Holland ◽  
Robert T. Ross
Keyword(s):  
Compound Conditioning ◽  
Serial Compound ◽  
Serial Compound Conditioning

scholarly journals Do rats learn conditional independence?

2017 ◽  
Vol 4 (2) ◽  
pp. 160994 ◽  
Author(s):  
Robert Ian Bowers ◽  
William Timberlake
Keyword(s):  
Conditioned Stimulus ◽  
Graphical Models ◽  
Conditional Independence ◽  
Theoretical Weight ◽  
Compound Conditioning ◽  
Markov Condition ◽  
Serial Compound ◽  
Conditioning Experiment ◽  
Direct Dependence ◽  
Serial Compound Conditioning

If acquired associations are to accurately represent real relevance relations, there is motivation for the hypothesis that learning will, in some circumstances, be more appropriately modelled, not as direct dependence, but as conditional independence. In a serial compound conditioning experiment, two groups of rats were presented with a conditioned stimulus (CS1) that imperfectly (50%) predicted food, and was itself imperfectly predicted by a CS2. Groups differed in the proportion of CS2 presentations that were ultimately followed by food (25% versus 75%). Thus, the information presented regarding the relevance of CS2 to food was ambiguous between direct dependence and conditional independence (given CS1). If rats learnt that food was conditionally independent of CS2, given CS1, subjects of both groups should thereafter respond similarly to CS2 alone. Contrary to the conditionality hypothesis, subjects attended to the direct food predictability of CS2, suggesting that rats treat even distal stimuli in a CS sequence as immediately relevant to food, not conditional on an intermediate stimulus. These results urge caution in representing indirect associations as conditional associations, accentuate the theoretical weight of the Markov condition in graphical models, and challenge theories to articulate the conditions under which animals are expected to learn conditional associations, if ever.

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