Re: VRD - blindfolded person and balance

The person should walk in a straight line, as long as the line to be walked 
along was indicated to the person before hand.  Instant Visual input (i.e., 
visual input at all times) is not necessary in motor coding (in this case 
walking) but is more of a feedback for making corrections.  Also, if the 
subjects are not told to consciously straighten their path they are most likely 
to remain on a straight path.  Literature by Berthoz may be worth a read on the 
matter.
Cheers
S Chakrabarty