In the mid 1960s, Prof John W. Senders (that's him under the helmet) and a team of psychologists wanted to study the "attentional demand" of automobile driving.
So, they devised a special helmet with a movable visor that obstructed the driver's vision - in essence making him drive blindfolded and .... then send him down Route 128 outside of Boston!
Check out the crazy video: Link [embedded YouTube] - Thanks Andrew Wirtanen!
J.W. Senders