Memory is something that has always amazed and fascinated me. The idea that we are able to retain and remember events that have happened through the years is crazy. My grandmother, who had dementia, first began losing her memory in 2009. When we would visit, we would have the same conversations over and over. For us, time moved on- but for her, she kept re-living the year 2009.
Although her short term memory was gone, her long term memory was still intact. She could tell us what soap opera episode she was watching when Kennedy was assassinated or what outfit she wore to various family events, but she had no recollection of what she had done 20 minutes ago. As sad is this was to see and experience, it was also kind of incredible.
I found the part about taxi drivers' brains to be really interesting. The idea that their brains could actually differ from ours was really cool. When you think about it, it makes sense, but it isn't something I would have thought about on my own.This article on it is pretty interesting: http://news.bbc.co.uk/2/hi/677048.stm