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- W2807005512 abstract "How stable and general is behavior once maximum learning is reached? To answer this question and understand post-acquisition behavior and its related individual differences, we propose a psychological principle that naturally extends associative models of Pavlovian conditioning to a dynamical oscillatory model where subjects have a greater memory capacity than usually postulated, but with greater forecast uncertainty. This results in a greater resistance to learning in the first few sessions followed by an over-optimal response peak and a sequence of progressively damped response oscillations. We detected the first peak and trough of the new learning curve in our data, but their dispersion was too large to also check the presence of oscillations with smaller amplitude. We ran an unusually long experiment with 32 rats over 3960 trials, where we excluded habituation and other well-known phenomena as sources of variability in the subjects' performance. Using the data of this and another Pavlovian experiment by Harris et al. (2015), as an illustration of the principle we tested the theory against the basic associative single-cue Rescorla-Wagner (RW) model. We found evidence that the RW model is the best nonlinear regression to data only for a minority of the subjects, while its dynamical extension can explain the almost totality of data with strong to very strong evidence. Finally, an analysis of short-scale fluctuations of individual responses showed that they are described by random white noise, in contrast with the colored-noise findings in human performance." @default.
- W2807005512 created "2018-06-13" @default.
- W2807005512 creator A5040445320 @default.
- W2807005512 creator A5043105038 @default.
- W2807005512 creator A5046759196 @default.
- W2807005512 date "2020-04-22" @default.
- W2807005512 modified "2023-10-16" @default.
- W2807005512 title "Behavior Stability and Individual Differences in Pavlovian Extended Conditioning" @default.
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- W2807005512 doi "https://doi.org/10.3389/fpsyg.2020.00612" @default.
- W2807005512 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/7189120" @default.
- W2807005512 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/32390896" @default.
- W2807005512 hasPublicationYear "2020" @default.
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