There’s a back-story to my theory

I can show data dating back to the year 2000 that supports my theory that low levels of complement proteins, which are a part of the human immune system, specifically C3, C4 and most likely C1q, are the biological cause of the development of inherited synaesthesia (at least in some cases). Before I had thought of the idea of a link between the immune system and synaesthesia I had, at the blog, published a theory that synaesthesia is in some way the neurological opposite of a variety of dementia named Benson’s syndrome (aka PCA, posterior cortical atrophy), based on my observations and reading. I had speculated that there could be some “magical chemical” that regulated the brain in some way and that oppositely extreme levels of this magical chemical could be the biological basis of both synaesthesia and Benson’s syndrome. Back in 2012 I read a small article in New Scientist magazine that blew my mind, because it appeared that it gave me some major clues about what that magical chemical could be. The article was about the exciting work of Dr Beth Stevens on microglial pruning in the brain and the immune system’s complement proteins. The term “pruning” was familiar to me from all of my reading about synaesthesia, which is a fun heritable brain-based phenomenon which I share with some of my first-degree relatives, along with specific gifts in literacy skills. The term “complement” in the context of the immune system, and the individual names of complement proteins were also familiar to me.

Being a super-recognizer, I’m pretty good at recognizing patterns, and I recognized that all these elements of information fitted together into an important and original multi-faceted theory. I was so excited that I published a brief outline of my theory at this blog in 2012. In 2013 I was shocked to discover that a prominent synaesthesia researcher and her co-author had published a theoretical journal paper titled “The immune hypothesis of synesthesia” which even included speculation that the “complement system” could be the element of the immune system responsible for the development of synaesthesia. I found no credit given in that paper to me or my blog. As I had published my theory first I believe I should have been fully acknowledged. I never thought that this could have been a case of two separate parties thinking of the same idea independently. I read their paper through and I looked into the educational and research background of both authors and their previous publications and found no study or writing about the immune system and no indication or explanation of why they might have suddenly had their own insight linking synaesthesia with some of the many elements of the incredibly complex immune system that only an immunologist would find interesting. 

This Easter I’d like to pose the question; can Simner and Carmichael offer data dating back to the year 2000 as the basis of their published version of “the immune hypothesis of synesthesia”? I can, and I would be willing to share my data with serious medical researchers.

A while ago I was sorting through some piles of old papers that I had stowed away years ago without sorting through them. These things happen during a busy family life. These piles had been sitting around for years, some of it photocopies of articles from New Scientist magazine that had struck me as interesting but which I hadn’t always had the time to read through properly. I was amused to find that I had stowed away an article from the March 1st 2008 issue titled “Thought control” by Bijal Trivedi. It was all about exciting research by the likes of Carla Shatz, Ben Barres, Simon John, Staffan Cullheim, Eliezer Masliah, Robert Terry and Lisa Boulanger about synapse loss in dementia and the interesting things that elements of the immune system appeared to be doing in the brain, contrary to the received wisdom that there is a thing called the blood-brain barrier that keeps the immune system out of the brain. I’m not sure whether or not I had read the article back then, but I can understand why it had sparked my interest. Back then it wasn’t enough of a spark to give me the idea of a link between the immune system and synaesthesia, because back then I hadn’t even heard of the terms “super-recognizer” or “Benson’s syndrome”, in fact the concept and the term of “super-recognizer” hadn’t yet been published. Back then I had not the slightest inkling that I had better than average ability in face recognition, so I hadn’t started thinking about whether it was more than a coincidence that I was both a synaesthete and a super, and which parts of the brain might be atypical in both. I hadn’t read the human interest story in The West about a Perth citizen who had been diagnosed with Benson’s, and felt curious about how the description of that type of dementia sounded like the opposite of skills that were superior or associated with synaesthesia in myself and kin. I must have forgotten about the content of the 2008 New Scientist article, if I had ever read it at all, because it would have been the ribbon which I could have used to wrap up my package of ideas neatly. Curiosity can be rewarded, even if it takes a couple of coins before the penny drops.


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