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Derouet, Joffrey; Droit-Volet, Sylvie; Doyère, Valérie – Learning & Memory, 2021
The present study evaluates the updating of long-term memory for duration. After learning a temporal discrimination associating one lever with a standard duration (4 sec) and another lever with both a shorter (1-sec) and a longer (16-sec) duration, rats underwent a single session for learning a new standard duration. The temporal generalization…
Descriptors: Memory, Cognitive Processes, Time Factors (Learning), Task Analysis
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Sievers, Carolin; Bird, Chris M.; Renoult, Louis – Learning & Memory, 2019
Repeated study typically improves episodic memory performance. Two different types of explanations of this phenomenon have been put forward: (1) reactivating the same representations strengthens and stabilizes memories, or (2) greater encoding variability benefits memory by promoting richer traces. The present experiment directly compared these…
Descriptors: Memory, Concept Formation, Prediction, Cognitive Processes
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Dandolo, Lisa C.; Schwabe, Lars – Learning & Memory, 2016
Integrative encoding and generalization across past experiences depends largely on the hippocampus, an area known to be particularly sensitive to stress. Yet, whether stress influences the ability to generalize memories is unknown. We exposed volunteers to a stressor or a control manipulation before they completed an acquired equivalence task…
Descriptors: Cognitive Processes, Generalization, Brain Hemisphere Functions, Stress Variables
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Andreatta, Marta; Neueder, Dorothea; Glotzbach-Schoon, Evelyn; Mühlberger, Andreas; Pauli, Paul – Learning & Memory, 2017
Animal studies suggest that time delay between acquisition and retrieval of contextual anxiety increases generalization. Moreover, such generalization is prevented by preexposure to the context (CTX), presumably due to an improved representation of such context. We investigated whether preexposure and time-passing modulate generalization of…
Descriptors: Anxiety, Generalization, Memory, Safety
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Huckleberry, Kylie A.; Ferguson, Laura B.; Drew, Michael R. – Learning & Memory, 2016
There is growing interest in generalization of learned contextual fear, driven in part by the hypothesis that mood and anxiety disorders stem from impaired hippocampal mechanisms of fear generalization and discrimination. However, there has been relatively little investigation of the behavioral and procedural mechanisms that might control…
Descriptors: Generalization, Fear, Anxiety Disorders, Emotional Response
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Gazarini, Lucas; Stern, Cristina A. Jark; Carobrez, Antonio P.; Bertoglio, Leandro J. – Learning & Memory, 2013
Consolidation and reconsolidation are phases of memory stabilization that diverge slightly. Noradrenaline is known to influence both processes, but the relative contribution of alpha1- and beta-adrenoceptors is unclear. The present study sought to investigate this matter by comparing their recruitment to consolidate and/or reconsolidate a…
Descriptors: Memory, Fear, Generalization, Biochemistry
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Peigneux, Philippe; Schmitz, Remy; Willems, Sylvie – Learning & Memory, 2007
Preference for previously seen, unfamiliar objects reflects a memory bias on affective judgment, known as the "mere exposure effect" (MEE). Here, we investigated the effect of time, post-exposure sleep, and the brain hemisphere solicited on preference generalization toward objects viewed in different perspectives. When presented in the right…
Descriptors: Memory, Sleep, Generalization, Brain Hemisphere Functions
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Bouton, Mark E. – Learning & Memory, 2004
This article provides a selective review and integration of the behavioral literature on Pavlovian extinction. The first part reviews evidence that extinction does not destroy the original learning, but instead generates new learning that is especially context-dependent. The second part examines insights provided by research on several related…
Descriptors: Reinforcement, Expectation, Inhibition, Generalization