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Nelson, James Byron; Fabiano, Andrew M.; Lamoureux, Jeffrey A. – Learning & Memory, 2018
Two experiments assessed the effects of extinguishing a conditioned cue on subsequent context conditioning. Each experiment used a different video-game method where sensors predicted attacking spaceships and participants responded to the sensor in a way that prepared them for the upcoming attack. In Experiment 1 extinction of a cue which signaled…
Descriptors: Learning Processes, Arousal Patterns, Attention, Context Effect
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Holmes, Nathan M.; Westbrook, R. Frederick – Learning & Memory, 2014
Four experiments used rats to study appetitive-aversive transfer. Rats trained to eat a palatable food in a distinctive context and shocked in that context ate and did not freeze when tested 1 d later but froze and did not eat when tested 14 d later. These results were associatively mediated (Experiments 1 and 2), observed when rats were or were…
Descriptors: Animals, Fear, Food, Negative Reinforcement
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Bisby, James A.; Burgess, Neil – Learning & Memory, 2014
The formation of associations between items and their context has been proposed to rely on mechanisms distinct from those supporting memory for a single item. Although emotional experiences can profoundly affect memory, our understanding of how it interacts with different aspects of memory remains unclear. We performed three experiments to examine…
Descriptors: Memory, Animals, Emotional Response, Affective Behavior
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Baker, Kathryn D.; McNally, Gavan P.; Richardson, Rick – Learning & Memory, 2012
The NMDA receptor partial agonist d-cycloserine (DCS) enhances the extinction of learned fear in rats and exposure therapy in humans with anxiety disorders. Despite these benefits, little is known about the mechanisms by which DCS promotes the loss of fear. The present study examined whether DCS augments extinction retention (1) through reductions…
Descriptors: Anxiety Disorders, Context Effect, Anxiety, Fear
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Manelis, Anna; Reder, Lynne M. – Learning & Memory, 2012
Using a combination of eye tracking and fMRI in a contextual cueing task, we explored the mechanisms underlying the facilitation of visual search for repeated spatial configurations. When configurations of distractors were repeated, greater activation in the right hippocampus corresponded to greater reductions in the number of saccades to locate…
Descriptors: Spatial Ability, Learning Processes, Eye Movements, Cues
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Tort, Adriano B. L.; Komorowski, Robert; Kopell, Nancy; Eichenbaum, Howard – Learning & Memory, 2011
The association of specific events with the context in which they occur is a fundamental feature of episodic memory. However, the underlying network mechanisms generating what-where associations are poorly understood. Recently we reported that some hippocampal principal neurons develop representations of specific events occurring in particular…
Descriptors: Animals, Brain Hemisphere Functions, Context Effect, Correlation
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Giurfa, Martin; Malun, Dagmar – Learning & Memory, 2004
The present work introduces a form of associative mechanosensory conditioning of the proboscis extension reflex (PER) in honeybees. In our paradigm, harnessed honeybees learn the elemental association between mechanosensory, antennal stimulation and a reward of sucrose solution delivered to the proboscis. Thereafter, bees extend their proboscis to…
Descriptors: Models, Cues, Stimulation, Classical Conditioning
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Gainutdinova, Tatiana H.; Tagirova, Rosa R.; Ismailova, Asja I.; Muranova, Lyudmila N.; Samarova, Elena I.; Gainutdinov, Khalil L.; Balaban, Pavel M. – Learning & Memory, 2005
We investigated the influence of the protein synthesis blocker anisomycin on contextual memory in the terrestrial snail "Helix." Prior to the training session, the behavioral responses in two contexts were similar. Two days after a session of electric shocks (5 d) in one context only, the context conditioning was observed as the significant…
Descriptors: Conditioning, Long Term Memory, Context Effect, Sensory Training