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English Wikipedia
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Long-term potentiation and memory Lynch MAPhysiol Rev 2004[Jan]; 84 (1): 87-136One of the most significant challenges in neuroscience is to identify the cellular and molecular processes that underlie learning and memory formation. The past decade has seen remarkable progress in understanding changes that accompany certain forms of acquisition and recall, particularly those forms which require activation of afferent pathways in the hippocampus. This progress can be attributed to a number of factors including well-characterized animal models, well-defined probes for analysis of cell signaling events and changes in gene transcription, and technology which has allowed gene knockout and overexpression in cells and animals. Of the several animal models used in identifying the changes which accompany plasticity in synaptic connections, long-term potentiation (LTP) has received most attention, and although it is not yet clear whether the changes that underlie maintenance of LTP also underlie memory consolidation, significant advances have been made in understanding cell signaling events that contribute to this form of synaptic plasticity. In this review, emphasis is focused on analysis of changes that occur after learning, especially spatial learning, and LTP and the value of assessing these changes in parallel is discussed. The effect of different stressors on spatial learning/memory and LTP is emphasized, and the review concludes with a brief analysis of the contribution of studies, in which transgenic animals were used, to the literature on memory/learning and LTP.|Animals[MESH]|Brain/*physiology[MESH]|Humans[MESH]|Long-Term Potentiation/*physiology[MESH]|Memory/*physiology[MESH]|Nerve Growth Factors/physiology[MESH]|Receptors, N-Methyl-D-Aspartate/metabolism[MESH]|Signal Transduction/physiology[MESH]|Stress, Physiological/physiopathology[MESH]|Synaptic Transmission/physiology[MESH] |
