posted on Sep, 26 2007 @ 07:55 AM
While i dont know about an image that would universally make people go insane, there is another "scientific" way to drive people up the wall:
Extreme Sensory Deprivation.
In other words, Sensory Deprivation for long periods of time. Prisons and torturers use it, and people lose their minds to it.
On a more sci-fi note, i remember seeing a movie...man what was it called...House on haunted hill! (i think)
Basically it takes place in an assylum, one of the machines in the basement reminds me of what your looking for. Basically, it was a circular room
and the patient sat in the center. There were 2 sets of walls, inner and outer, with verticle slits/opennings on the inner walls. The inner walls
spun faster and faster revealing pictures (pasted on the outer wall) and as the inner wall spun, the pictures would move and come to life. The
patient would sit (for hours or days) in complete darkness accept for the light comming from the pictures.
As i said, its a figment of sci-fi, but I walways thought sitting in that machine would be enough to drive me nuts.