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The hippocampus is active in converting information into long-term memory and in memory recall. Repeated use of specialized nerve networks in the hippocampus enhances memory storage, so this structure is involved in learning from both commonplace experiences and deliberate study.
But not all experiences in a person's life are etched in memory, nor is it necessary to retain every bit of information. Here, emotions enter the memory process. Some neuroscientists believe the hippocampus helps select which memories are stored, perhaps by attaching an "emotion marker" to some events or information so they are more likely to be recalled.
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