Detection theory, often referred to as signal detection theory (SDT), is a framework used to understand how decisions are made under conditions of uncertainty. It is particularly relevant in fields like psychology, neuroscience, telecommunications, and various areas of engineering. ### Key Concepts of Detection Theory: 1. **Signal and Noise**: At its core, detection theory distinguishes between "signal" (the meaningful information or stimulus) and "noise" (the irrelevant information or background interference).
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