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Darvas, Martin; Fadok, Jonathan P.; Palmiter, Richard D. – Learning & Memory, 2011
Two-way active avoidance (2WAA) involves learning Pavlovian (association of a sound cue with a foot shock) and instrumental (shock avoidance) contingencies. To identify regions where dopamine (DA) is involved in mediating 2WAA, we restored DA signaling in specific brain areas of dopamine-deficient (DD) mice by local reactivation of conditionally…
Descriptors: Animals, Classical Conditioning, Genetics, Biochemistry
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Gafford, Georgette M.; Parsons, Ryan G.; Helmstetter, Fred J. – Learning & Memory, 2005
Benzodiazepines have been useful tools for investigating mechanisms underlying learning and memory. The present set of experiments investigates the role of hippocampal GABA[subscript A]/benzodiazepine receptors in memory consolidation using Pavlovian fear conditioning. Rats were prepared with cannulae aimed at the dorsal hippocampus and trained…
Descriptors: Animals, Drug Use, Learning Processes, Brain Hemisphere Functions
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Fister, Mathew; Bickford, Paula C.; Cartford, M. Claire; Samec, Amy – Learning & Memory, 2004
The neurotransmitter norepinephrine (NE) has been shown to modulate cerebellar-dependent learning and memory. Lesions of the nucleus locus coeruleus or systemic blockade of noradrenergic receptors has been shown to delay the acquisition of several cerebellar-dependent learning tasks. To date, no studies have shown a direct involvement of…
Descriptors: Eye Movements, Classical Conditioning, Learning Processes, Biochemistry