Early Blindness Sharpens Sense of Sound

squidfrog writes "Canadian researchers (articles here, here, and here) have released findings that 'compare the hearing perception of people who lost their sight by age 2, individuals who went blind between the ages 5 and 45, and people with normal vision. The test involved listening to a series of two tones. For each set of tones, subjects had to determine whether the pitch was rising or falling.' 'It has long been known that blind people are far better than their sighted counterparts at orientating themselves by sound... this latest research has found that blind people are also up to 10 times better at discerning pitch changes than the sighted, but only when they went blind before the age of two.'"