An Alternative To Zener Cards
on March 19th, 2009If you have even cursorily studied the science of parapsychology, you’ve heard of Zener Cards. These are the cards invented by perceptual psychologist Karl Zener in the 1930′s to test for psychic ability. They consist of 5 simple shapes: a circle, a plus sign, a series of waves, a square, and a star. You probably [...]





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