In this context, the Hat is an image of something that covers the brain, and the color is associated with specific emotions and feelings. Edward De Bono defines six hats: the white hat, which he calls neutral and objective; the red hat, which he links to emotions and feelings; the black or logical-negative hat; the yellow hat, which was originally called speculative-positive, but can just as easily be called logical-positive as the opposite of the black hat; the green hat, which is creative; and finally, the blue hat to control the thinking process.
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