3 research outputs found
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A Complete Serial Compound Temporal Difference Simulator for Compound stimuli, Configural cues and Context representation
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Computational Models of Classical Conditioning: A Qualitative Evaluation and Comparison
Classical conditioning is a fundamental paradigm in the study of learning and thus in understanding cognitive processes and behaviour, for which we need comprehensive and accurate models. This paper aims at evaluating and comparing a collection of influential computational models of classical conditioning by analysing the models themselves and against one another qualitatively. The results will clarify the state of the art in the area and help develop a standard model of classical conditioning
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Mediated Learning: A Computational Rendering of Ketamine-induced Symptoms
This paper explores the contribution of the DDA computational associative learning model to understanding the role of mediated learning mechanisms in the generation of spurious associations, as those postulated to characterize schizophrenia. Three sets of simulations for mediated conditioning, mediated extinction, and a mediated enhancement of latent inhibition, a unique model prediction, are presented. For each set of simulations, a parameter that modulates the impact of associative memory retrieval and the dissipation of non-perceptual activated representations through the network was manipulated. The effect of this operation is analyzed and compared to ketamine-induced effects on associative memories and mediated learning. The model’s potential to predict these effects and present a plausible error-correction associative mechanism is discussed in the context of animal models of schizophrenia