Hippocampus anatomy These limbic structures include the hippocampus, cingulate cortex, olfactory cortex, and amygdala. Paul MacLean once suggested, as part of his triune brain theory, that the limbic structures constitute the neural basis of emotion. While most neuroscientists no longer believe in the concept of a unified "limbic system", these regions are highly interconnected and do interact with one another. Starting at the dentate gyrus and working inward along the S-curve of the hippocampus means traversing a series of narrow zones. The first of these, the dentate gyrus (DG), is actually a separate structure, a tightly packed layer of small granule cells
Childhood memory of the brain are not properly activated for remembering. These areas include the hippocampus and, possibly to a larger extent, the amygdala. The amygdala, specifically the basolateral amygdala, has a primary link with emotion and is thought to play a role in memory consolidation through emotionally stimulating reading of material facilitated by repetition. In addition, the CA3 area of the hippocampus "replays" story events through repetition, which promotes long-term memory. Discussion and review of storylines can be categorized as a form of environmental enrichment which aides in survival of granule cells and glial cells as the hippocampus develops. Finally, the