Using computerized eye trackers, researchers discover at least 50 percent of people can see the movement of their own hand in total darkness.
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While only 1 in 25 people has synesthesia, a new study reports intuitions about 'sound colors' are shared by a greater percentage of people. Sound color perception is mainly driven by the vowels in language.
People with grapheme-color synesthesia, associating colors with numbers and letters, have a significant advantage when it comes to statistical learning.