👉 The tetrachord, also known as the Tetrachord System or Tetrachord Method, is a method used in psychology and cognitive science to analyze complex neural networks. It was developed by researchers at the University of California at San Francisco in 1980. In this system, the Tetrachord consists of six interconnected loops that are arranged in a specific pattern around a central point. The loop structure can be broken down into three main components: the input layer,
