BlankI was going to send this to Tom KB5vij? our audiologist on this list, 
but couldn't find his email address.

I remember denying the impressions of sighted people who claimed that 
because we were blind, we must have a heightened sense of hearing.  I always 
felt that our hearing was equivalent, but that we were more attentive to 
what we did hear.

But, research seems to indicate that their impressions may be more spot on. 
I just ran across an article in the February 7 edition of USA Today that 
says they've done experiments in mice that either blindfolding or confining 
them to a dark room for a lengthy period improved their hearing.

Steve, K8SP