The investigations also proved that there were many cases of spontaneous deviation, i.e. cases where there had been no stimulation of the semi-circular canal apparatus.
As neither of these two great research scientists was able to find the solution to the mystery, it is small wonder that none of their contemporaries were able to do so either.
One can, therefore, say with confidence (1) that localization in this spot is correct, and (2) that the experiment can be used on a large scale without any danger to the patient.