Sep 29 2008
Apoptotic memories
Apoptosis is a form of programmed cell death essential to guaranteeing our existence as healthy human beings. The lack of apoptosis (death, so to speak) or its excess can trigger cancer or ischemic processes that can lead to our physical death. In short, cells must die in a programmed or orderly way so that we can go on living.
These days I have been reading a very interesting book written by an Argentine neuroscientist, Iván Izquierdo. The book is called El Arte de Olvidar and, far from being a romantic novel, it is a very well written essay that illustrates part of the enigma surrounding the human brain and, particularly, the way in which our brain constructs, fabricates and destroys memories. Forgetting or losing our memories is necessary for life. It appears that oblivion is part of the deal because life would be impossible if we were able to remember every single thing that happens to us in a normal day (think of Funes, el memorioso for example). We have what Izquierdo calls a “working memory” that enables us to perform our daily tasks and completely obliterate everything that would be considered superficial, or would obstruct such performance. Short-term and long-term memories, that is, the ones that “stay” are more capriciously retained or forgotten. It is possible that some of them are lost forever on account of the death of brain cells — apoptosis, for example, is responsible for helping us “lose” our crawling abilities as babies so that we can become bipeds — whereas other memories are simply stored somewhere else and sometimes replaced with new acquisitions (I am thinking here of our computer hard drive when we delete something; it soon fills up the space we freed with the new information we feed into it — I wonder what memories will go down the drain for me now that I have taken up Swedish lessons?).
But perhaps the most interesting section of this book is when the author speaks about the memories we fabricate. Indeed, sometimes what we remember is distorted by our own desires, frustrations and emotions into something that may have never happened — at least not as we remember it. However, we then subconsciously proceed to convince ourselves of our “new” memory, and live happily in that conviction. Why would we fabricate memories? Because of our emotionality.
Memories are emotions. What stays with us, the smells, the sounds, the tactile impressions we recall, fabricated or not, have a strong emotional component. Therefore, if a reader retains a line in a book, it is an emotional action. Years ago, when I first read Jeanette Winterson’s Written on the Body I was struck by the first line in that novel…Why is the measure of love loss? I only read the line once, but it stayed with me ever since, without having read the book again. My emotions at that time were possibly linked to what Winterson wrote. I remember the line today, but I could not really speak about the novel at length if you asked me.
Despite our emotional strength, sooner or later some memories fade and vanish, whether their root was emotional or not. It is part of the process. Again, a necessary fact.
At some point, everything dies. Still, we are what we remember, each of us unique in our recollections. We are made of memories, and live the present tense on those. It is here that the idea of apoptosis comes back. Our own apoptotic work with our memories is not arbitrary or fanciful. We must be extra careful not to kill the memories that enable us to keep on living or let live those that would destroy us. However, sometimes we do not succeed and we lose our own functionality. This can be as serious as Alzheimer, but it can also be a psychological limitation, such as dwelling on a past that hurts and does not serve a purpose. Therefore, it is clear that — in as much as it is possible — we must let the right memories go, so that we can keep on living in a good and healthy way.


