Some years ago I recall reading about some research where scientists scanned the brains of London Cabbies before and after they had done “the knowledge” – the scans clearly showed that they had somehow reorganised their brains so that there was more space allotted to storing the knowledge of all the streets in London and their connectivity – while previous functions had been moved elsewhere!
This week I was alerted to this Harvard University study using brain scans to showing how the brain is changed through an eight week mindfulness course. This may also explain how such a source seem to have a persisting effect on those who try it. (Published in: Harvard University Press and Journal of Psychiatry Research: Neuroimaging)
See:
https://news.harvard.edu/…/01/eight-weeks-to-a-better-brain/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3004979/