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Cleary, Leonard J.; Byrne, John H.; Antzoulatos, Evangelos G.; Wainwright, Marcy L. – Learning & Memory, 2006
Repetitive, unilateral stimulation of "Aplysia" induces long-term sensitization (LTS) of ipsilaterally elicited siphon-withdrawal responses. Whereas some morphological effects of training appear only on ipsilateral sensory neurons, others appear bilaterally. We tested the possibility that contralateral morphological modifications may have…
Descriptors: Stimulation, Long Term Memory, Science Experiments, Scientific Methodology
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Kiselycznyk, Carly L.; Zhang, Steven; Linster, Christine – Learning & Memory, 2006
While there is evidence that feedback projections from cortical and neuromodulatory structures to the olfactory bulb are crucial for maintaining the oscillatory dynamics of olfactory bulb processing, it is not clear how changes in dynamics are related to odor perception. Using electrical lesions of the olfactory peduncle, sparing output from the…
Descriptors: Feedback, Biological Influences, Role Perception, Neurological Impairments
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Ma, Yun L.; Tsai, Ming C.; Hsu, Wei L.; Lee, Eminy H.Y. – Learning & Memory, 2006
Previous studies showed that the serum- and glucocorticoid-inducible kinase ("sgk") gene plays an important role in long-term memory formation. The present study further examined the role of SGK in long-term potentiation (LTP). The dominant-negative mutant of "sgk," SGKS422A, was used to inactivate SGK. Results revealed a time-dependent increase…
Descriptors: Long Term Memory, Brain, Neuropsychology, Inhibition
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Buffalo, Elizabeth A.; Bellgowan, Patrick S. F.; Martin, Alex – Learning & Memory, 2006
The ability to learn and retain novel information depends on a system of structures in the medial temporal lobe (MTL) including the hippocampus and the surrounding entorhinal, perirhinal, and parahippocampal cortices. Damage to these structures produces profound memory deficits; however, the unique contribution to memory of each of these…
Descriptors: Memory, Memorization, Recognition (Psychology), Role Perception
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Runyan, Jason D.; Moore, Anthony N.; Dash, Pramod K. – Learning & Memory, 2005
The prefrontal cortex is involved in the integration and interpretation of information for directing thoughts and planning action. Working memory is defined as the active maintenance of information in mind and is thought to lie at the core of many prefrontal functions. Although dopamine and other neurotransmitters have been implicated, the…
Descriptors: Memory, Role Perception, Molecular Biology, Molecular Structure
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Torras-Garcia, Meritxell; Tronel, Sophie; Sara, Susan J.; Lelong, Julien – Learning & Memory, 2005
A rapidly learned odor discrimination task based on spontaneous foraging behavior of the rat was used to evaluate the role of N-methyl-D-aspartate (NMDA) receptors (NMDARs) in ongoing memory consolidation. Rats were trained in a single session to discriminate among three odors, one of which was associated with palatable food reward. Previous…
Descriptors: Mnemonics, Role Perception, Memory, Memorization
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Maldonado, Hector; Romano, Arturo; Merlo, Emiliano; Freudenthal, Ramiro – Learning & Memory, 2005
Several studies support that stored memories undergo a new period of consolidation after retrieval. It is not known whether this process, termed reconsolidation, requires the same transcriptional mechanisms involved in consolidation. Increasing evidence supports the participation of the transcription factor NF-[Kappa]B in memory. This was…
Descriptors: Molecular Biology, Recall (Psychology), Long Term Memory, Animals