The hippocampus is the "aware" part of the brain, it's a kind of short memory (from 1 second to some months). There, events can be memorised very fast, no repetition needed, to save information. Only important information will be stored here. So, the question now is:

What are important informations?

All sensoric and motoric events, which are related to a changement in the emotional arousal level. The emotional arousal is directly linked to the needs of the organism.
Those needs are:
- fundamental needs: energy, protection, selfreproduction
- informational needs: avoid uncertainty

From now on, this site will help me to present my project