Synaesthesia

Almost simultaneously, the neuroscience blogs on WordPress start to write about synaesthesia. Is this some kind of trend? Or maybe everybody just wrote what they saw, probably with some more detail. This kind of decreases the variety of surfing through blogs.

For those who don't know what synaesthesia is, it's the phenomena that senses associates with each other. A famous example is that some people see colored letters even though they are printed black. It's related to a increase in connection between brain areas, etc. For more detail please find them somewhere else.