Summary of Perceptual Experiments

• Our Span of absolute judgement and immediate memory limits our ability to perceive information accurately.
• We expand on this ability by reformating perceptual tasks into multiple dimensions or sequences of chunks.
• Relative judgement (detection) is more powerful than absolute (measured) judgement.
• The coincidence of the number 7 (plus or minus 2) is strictly coincidence (though 7 appears will uncanny regularity in everyday life).