video.
To tell you the truth, my dear, [ and this was the truth ] we didn't know what we were looking for. What we did was ambitious, but also extremely reckless. It was, in hindsight, foolish of us to go into tampering with such things blind, but at least we had the sense to experiment on ourselves instead of willing or unwilling test subjects. [ or animals, god forbid. ] What we found varied somewhat from person to person.