I've written about the phenomenon that our emotions are required for decision making more than once in the blog -- I've certainly read about it more than once. Here is a version of it from this linked article.
At some point, I hope to do a thorough review and tie this factoid together. I actually think all of us are pretty intuitive about this. Our "guts" or "right brains" give us the answer, and then our left brains, the logical part make up a story was to why it was "rational". Thus my oft used quote "we are rationalIZING not rational!".
A few years ago, neuroscientist Antonio Damasio made a groundbreaking discovery. He studied people with damage in the part of the brain where emotions are generated. He found that they seemed normal, except that they were not able to feel emotions. But they all had something peculiar in common: they couldn’t make decisions. They could describe what they should be doing in logical terms, yet they found it very difficult to make even simple decisions, such as what to eat. Many decisions have pros and cons on both sides—shall I have the chicken or the turkey? With no rational way to decide, these test subjects were unable to arrive at a decision.
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