Lawrence D. Rosenblum has written a book and also a recently-published article in Scientific American about a new model of how the brain works, with the senses working together intimately, not running in isolated ways in isolated sections of the brain.
Rosenblum’s book See What I’m Saying was reviewed by the synaesthesia researcher Richard Cytowic in New Scientist:
See What I’m Saying demonstrates that the five senses do not travel along separate channels, but interact to a degree few scientists would have believed only a decade ago. After reading Rosenblum’s captivating book, you will be surprised at how much your senses are capable of.
Cytowic wrote that this is not a book about synaesthesia. He’s right. There are important and testable differences between synaesthetes and non-synaesthetes, but it is my opinion that Rosenblum’s ideas possibly have implications for synaesthetes. I believe it is time to discard the misleading and silly notion that synaesthetes have “mixed up” or “cross-wired” senses, because every person’s senses work together. The McGurk effect is just one striking example. I believe we should instead be describing synaesthesia as a variation charcterized by hyperconnectivity in the brain, not abnormal connectivity or mistaken connectivity. We are a sizable minority in the human race, so it doesn’t make sense to write us off as freaks or abnormalities.
Extraordinary secrets of our linked-up senses
26 April 2010