Hippocampus (brain) - Definition

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The hippocampus is a section of the brain located in the temporal lobe, one in each brain hemisphere. This is one of the memory centers that also has a function of spatial navigation. The hippocampus neurons regenerate throughout our lives. Lesions on the hippocampus can be caused by epileptic fits, oxygen deprivation, or inflammation of the brain. Alzheimer's disease affects the hippocampus, causing memory loss and impaired sense of orientation. Trauma damaging the hippocampus can cause amnesia.