I thought the coolest fact about the Knowledge is that it actually induces observable physical changes in brain anatomy. > She has discovered that the posterio

I thought the coolest fact about the Knowledge is that it actually induces observable physical changes in brain anatomy. > She has discovered that the posterior hippocampus, the area of the brain known to be important for memory, is bigger in London taxi drivers than in most people, and that a successful Knowledge candidate’s posterior hippocampus enlarges as he progresses through the test. It seems that, like most things, there might be a tradeoff involved. According to this paper[0], > However, they were significantly worse at forming and retaining new associations involving visual information. We consider possible reasons for this decreased performance including the reduced grey matter volume in the anterior hippocampus of taxi drivers... [0] http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2670971/ http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2670971/