The question was administered by an attractive female assistant. She handed me a circular metal disk about the size of a silver dollar and had me hold it by thumb and one finger placed on opposite edges (hmmm... I wish I could pantomime this) so it could be pivoted end for end on that axis. I was instructed to look away from it while I spun it. I was shown a diagram of 4 shapes varying from a circle to an extremely squashed oval. I was told that most people experience a perceptual hallucination that made the circle feel elongated when spun in this way. And then I was supposed to choose which of the 4 shapes described what I perceived. She seemed to be a bit persistent in trying to convince me that what I felt was more elongated and less circular.

After taking the test, and thinking about it I decided they were really studying the effect of sexual influence on the subject. As I recall, I chose not the circle, but the one next to it - the least squashed of the ovals. Honestly, it didn't feel much like a circle or an oval, because of the limited contact with my fingers holding it and turning it. But also honestly, it did not seem more like an oval than a circle. So, I must have been in the somewhat influenced category. I prefer to think of it as chivalry.