I gave grand round at Mount Sinai hospital in Miami Beach . The purpose of the talk was to describe diagnostic reasoning. How doctors get from data to diagnosis. How the brain does it. The current models (System 2, System 1, and Bayes) use "hypothesis-testing" to describe this process. I will demonstrate why hypothesis-testing in inadequate, and why philosophers of science have proposed another kind of reasoning, abductive reasoning. I will define abductive reasoning, and show how it's applied to diagnosis.
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