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Bisby, Madelyne A.; Baker, Kathryn D.; Richardson, Rick – Learning & Memory, 2018
NMDA receptors (NMDARs) are considered critical for the consolidation of extinction but recent work challenges this assumption. Namely, NMDARs are not required for extinction retention in infant rats as well as when extinction training occurs for a second time (i.e., reextinction) in adult rats. In this study, a possible third instance of…
Descriptors: Fear, Learning Processes, Conditioning, Brain
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Ocampo, Amber C.; Squire, Larry R.; Clark, Robert E. – Learning & Memory, 2018
Prior experience has been shown to improve learning in both humans and animals, but it is unclear what aspects of recent experience are necessary to produce beneficial effects. Here, we examined the capacity of rats with complete hippocampal lesions, restricted CA1 lesions, or sham surgeries to benefit from prior experience. Animals were tested in…
Descriptors: Prior Learning, Experience, Spatial Ability, Memory