Det primære mål for virkningen var ændringen i den hastighed, hvormed patienterne foretog hurtige vandrette øjenbevægelser efter et års behandling, men undersøgelsen så også på andre neurologiske symptomer såsom patienternes evne til at synke og intellektuelle funktion.
The main measure of effectiveness was the change in the speed at which the patients made saccadic horizontal eye movements after a year, but the study also looked at other neurological symptoms such as the patients ’ ability to swallow and their intellectual function.