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Thompson, Brittany M.; Baratta, Michael V.; Biedenkapp, Joseph C.; Rudy, Jerry W.; Watkins, Linda R.; Maier, Steven F. – Learning & Memory, 2010
Activation of the infralimbic region (IL) of the medial prefrontal cortex (mPFC) reduces conditioned fear in a variety of situations, and the IL is thought to play an important role in the extinction of conditioned fear. Here we report a series of experiments using contextual fear conditioning in which the IL is activated with the GABAa antagonist…
Descriptors: Fear, Brain Hemisphere Functions, Learning Processes, Conditioning
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Pauli, Wolfgang M.; Clark, Alexandra D.; Guenther, Heidi J.; O'Reilly, Randall C.; Rudy, Jerry W. – Learning & Memory, 2012
Evidence suggests that two regions of the striatum contribute differential support to instrumental response selection. The dorsomedial striatum (DMS) is thought to support expectancy-mediated actions, and the dorsolateral striatum (DLS) is thought to support habits. Currently it is unclear whether these regions store task-relevant information or…
Descriptors: Evidence, Animals, Operant Conditioning, Adjustment (to Environment)
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Bolding, Kevin; Rudy, Jerry W. – Learning & Memory, 2006
Although the Morris water task has been used in hundreds of studies of place learning, there have been no systematic studies of retention of the place memory. We report that retention, as measured by selective search behavior on a probe trial, is excellent when the retention interval is short (5-10 min). However, performance rapidly deteriorates,…
Descriptors: Cognitive Processes, Intervals, Retention (Psychology), Nonverbal Learning