PKMZeta

The latest issue of Eureka, the Times's monthly science supplement, is out today. I've been incredibly supportive of the venture and it's great to see that a major national newspaper is increasing its science coverage, rather than cutting back on it. For this issue (the fourth, I think), I've written a piece on fear and memory, including a lot of research that I've previously covered in this blog. While writing the piece, I interviewed a scientist called Todd Sacktor who's doing some fascinating work in this field. Sacktor discovered that a protein called PKMzeta is vital for storing memory…
Our mind often seems like a gigantic library, where memories are written on parchment and stored away on shelves. Once filed, they remain steadfast and inviolate over time, although some may eventually become dusty and forgotten. Now, Reut Shema, Yadin Dudai and colleagues from the Weizmann Institute of Science have found evidence that challenges this analogy. According to their work, our memory is more like a dynamic machine - it requires a constant energy supply to work. Cut the power and memories are lost. Shema found that the plug that powers our memories is an enzyme called PKMzeta.…