One great experimental demonstration is these chain letters going around with all the letters in each word but the first and the last scrambled up - you can sti

One great experimental demonstration is these chain letters going around with all the letters in each word but the first and the last scrambled up - you can still read it at a good fraction of normal speed. What's interesting to me is that this high-level processing can make it into conscious awareness before the lower-level features involved (not letters, but at least shapes and colors - which came after reading in this case).