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Predictability, surprise, attention, and conditioning

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TLDR
The role of attention in Pavlovian conditioning, and use of auditory and visual stimuli to condition rats is discussed in this article, where the authors discuss the use of both visual and auditory stimuli.
Abstract
Role of attention in Pavlovian conditioning, and use of auditory and visual stimuli to condition rats

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Dopamine, prediction error and associative learning: A model-based account

TL;DR: This paper distinguishes itself from existing accounts by offering novel predictions pertaining to the firing of dopamine neurons in various untested behavioral scenarios and offers a plausible link between formal notions of prediction error and accounts of disturbances of thought in schizophrenia.
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Hippocampal regulation of aversive memories.

TL;DR: For many years, the hippocampal formation has been implicated in the regulation of negative emotion, yet the nature of this link has remained elusive as discussed by the authors, and the mechanisms by which the hippocampus regulates negative emotion are clearly complicated, but suggest that interventions aimed at restoring normal hippocampal function may help with disorders of negative affect such as depression or post-traumatic stress disorder and depression.
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Memory for timing visual and auditory signals in albino and pigmented rats

TL;DR: It is hypothesized that during a gap in a timed signal, the time accumulated during the pregap interval decays at a rate proportional to the perceived salience of the gap, influenced by sensory acuity and signal intensity.
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Development of context-specific tolerance to morphine: support for a dual-process interpretation

TL;DR: Evidence of conditioned compensatory response in the two measures was interpreted as consistent with the fact that the activity measure showed a biphasic unconditioned response in Experiment 1 whereas the analgesic measure did not.