Hi there,
I just found this, maybe it answers some of your questions:
Perceptual Correlates of Changes in Cortical Representation of Fingers in
Blind Multifinger Braille Readers
A. Sterr, M.M. Mueller, T. Elbert, B. Rockstroh, C. Pantev and E. Taub
J. Neurosci. 18(11):4417-4423 (1998)
Gruss, Leo
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Ralph Leonhardt (Dipl.-Biol.) Tel.: +49 (0)234 700 5559
Inst. f. Neuroinformatik, Geb. ND 04/297 Fax: +49 (0)234 709 4209
Ruhr-Universitaet-Bochum
D-44780 Bochum, Germany
E-mail: ralph.leonhardt at neuroinformatik.ruhr-uni-bochum.de
URL: http://www.neuroinformatik.ruhr-uni-bochum.de/ini/PEOPLE/leo/top.html