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Direct linkStiver, Mikaela L.; Jacklin, Derek L.; Mitchnick, Krista A.; Vicic, Nevena; Carlin, Justine; O'Hara, Matthew; Winters, Boyer D. – Learning & Memory, 2015
Consolidated memories can become destabilized and open to modification upon retrieval. Destabilization is most reliably prompted when novel information is present during memory reactivation. We hypothesized that the neurotransmitter acetylcholine (ACh) plays an important role in novelty-induced memory destabilization because of its established…
Descriptors: Memory, Animals, Recognition (Psychology), Mnemonics
Lazzaro, Stephanie C.; Hou, Mian; Cunha, Catarina; LeDoux, Joseph E.; Cain, Christopher K. – Learning & Memory, 2010
Norepinephrine receptors have been studied in emotion, memory, and attention. However, the role of alpha1-adrenergic receptors in fear conditioning, a major model of emotional learning, is poorly understood. We examined the effect of terazosin, an alpha1-adrenergic receptor antagonist, on cued fear conditioning. Systemic or intra-lateral amygdala…
Descriptors: Posttraumatic Stress Disorder, Conditioning, Long Term Memory, Fear
Nagy, Vanja; Bozdagi, Ozlem; Huntley, George W. – Learning & Memory, 2007
Matrix metalloproteinases (MMPs) are a family of extracellularly acting proteolytic enzymes with well-recognized roles in plasticity and remodeling of synaptic circuits during brain development and following brain injury. However, it is now becoming increasingly apparent that MMPs also function in normal, nonpathological synaptic plasticity of the…
Descriptors: Long Term Memory, Brain, Biochemistry, Learning Processes
Brightwell, Jennifer J.; Smith, Clayton A.; Neve, Rachael L.; Colombo, Paul J. – Learning & Memory, 2007
Extensive research has shown that the hippocampus is necessary for consolidation of long-term spatial memory in rodents. We reported previously that rats using a place strategy to solve a cross maze task showed sustained phosphorylation of hippocampus cyclic AMP response element-binding protein (CREB), a transcription factor implicated in…
Descriptors: Short Term Memory, Long Term Memory, Learning Processes, Spatial Ability
Castner, Stacy A.; Williams, Graham V. – Brain and Cognition, 2007
The prefrontal cortex of the primate frontal lobes provides the capacity for judgment which can constantly adapt behavior in order to optimize its outcome. Adjudicating between long-term memory programs and prepotent responses, this capacity reviews all incoming information and provides an interpretation dependent on the events that have just…
Descriptors: Brain Hemisphere Functions, Schemata (Cognition), Schizophrenia, Long Term Memory
Donley, Melanie P.; Rosen, Jeffrey B.; Malkani, Seema; Wallace, Karin J. – Learning & Memory, 2004
Studies of gene expression following fear conditioning have demonstrated that the inducible transcription factor, "egr-1," is increased in the lateral nucleus of the amygdala shortly following fear conditioning. These studies suggest that "egr-1" and its protein product Egr-1 in the amygdala are important for learning and memory of fear. To…
Descriptors: Animals, Animal Behavior, Brain, Learning Processes
