...Fascinating. I wonder if it could, seriously, be some help to stroke victims etc, as well? Even in dementia, maybe... though can you imagine doctors prescribing tattooing?
I feel however that in such cases, experiencing the tattoo might be far too traumatising on-top-of the existing condition...
...One of the things about fibromyalgia (the condition I happen to know most about) is that the brain learns to feel more pain than usual for the same stimuli... if I remember right, more nerves actually grow - or maybe more pain-receptor brain cells corresponding to the nerves.
(This sends some people into despair, but I decided that if my brain/nerves, let's say bodymind, could physically learn to perceive more pain, then it could be taught to perceive less, and so I'm working with that - with success, so far. )
Hmm. I like that thought!
I have a friend with fibromyalgia. (and hypermobile syndrome).
(I'm also very interested about hypermobility syndrome but can't really make it relevant to this thread. )