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Brembs, Bjorn; Baxter, Douglas A.; Byrne, John H. – Learning & Memory, 2004
Operant and classical conditioning are major processes shaping behavioral responses in all animals. Although the understanding of the mechanisms of classical conditioning has expanded significantly, the understanding of the mechanisms of operant conditioning is more limited. Recent developments in "Aplysia" are helping to narrow the gap in the…
Descriptors: Operant Conditioning, Classical Conditioning, Responses, Animals
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Joels, Marian; Krugers, Harm; Wiegert, Olof – Learning & Memory, 2006
Stress facilitates memory formation, but only when the stressor is closely linked to the learning context. These effects are, at least in part, mediated by corticosteroid hormones. Here we demonstrate that corticosterone rapidly facilitates synaptic potentiation in the mouse hippocampal CA1 area when high levels of the hormone and high-frequency…
Descriptors: Anxiety, Learning Processes, Drug Use, Animal Behavior