The hippocampus plays a central role in how we form memories and navigate space. It helps convert short-term experiences into long-term memories, allowing us to store and build on what we learn. Scientists led by Magdalena Walz Professor for Life Sciences Peter Jonas at the Institute of Science and Technology Austria (ISTA) are closely studying this brain region. Their new research, published in Nature Communications , explores how one of the hippocampus's main neural networks develops after birth. Picture a completely empty sheet of paper. You begin writing on it, gradually filling it with information. This idea reflects the concept of tabula rasa, or the "blank slate." Now imagine a page that already has marks on it. Any new information must fit around or replace what is already there. This represents tabula plena, or the "full slate." This long-standing debate asks whether we begin life with everything prearranged or whether our experiences shape who we become.…