Like a Hole in the Head . . .

Margaret hits the mark again with this digital clipping
http://www.margaret-marks.com/Transblawg/archives/000511.html

« An American woman has been left with a British accent after having a stroke. This is despite the fact that Tiffany Roberts, 61, has never been to Britain. Her accent is a mixture of English cockney and West Country. Apparently the first case of this kind occurred in Norway in 1941, where a woman recovered from shrapnel injuries to the head with a German accent - not popular at the time. »

After reading this I wonder, does the reverse scenario hold true as well? Talk in a Anglo-Saxon or Saxon accent, and hope for brain damage?