Can anyone develop the keen senses of the blind?
Seems so. It’s the result of more practice:
“There have always been these two competing ideas about why blind people have a better sense of touch,” explains Daniel Goldreich, corresponding author and a professor in the Department of Psychology, Neuroscience & Behaviour. “We found that dependence on touch is a driving force here. Proficient Braille readers—those who might spend hours a day reading with their fingertips—performed remarkably better. But blind and sighted participants performed equally when the lips were tested for sensitivity.”
Not only did blind participants do better than their sighted peers, but Braille readers, when tested on their readings hands, outperformed nonreaders who were also blind. For Braille-reading participants, their reading fingers were more sensitive than their non-reading fingers.