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
Intermediate-term memory phase of long-term memory, respectively—thus demonstrating the presence of a form of memory that exists between working memory and long-term memory, which they referred to as "intermediate-term memory". Though the idea of intermediate-term memory has existed since the 1990s, Sutton "et al." introduced a novel theory for the neural correlates underlying intermediate-term memory in "Aplysia" in 2001, where they described it as the primary behavioral manifestation of intermediate-term facilitation. In 2001, Sutton and colleagues proposed that intermediate-term memory possesses the following three characteristics: Because intermediate-term memory does not involve transcription, it likely involves the translation of mRNA transcripts already present