Simple Quantum Model of Learning Explains the Yerkes-Dodson Law in   Psychology
  We propose the simple model of learning based on which we derive and explain the Yerkes-Dodson law - one of the oldest laws of experimental psychology. The approach uses some ideas of quantum theory of open systems (QTOS) and develops the method of statistical description of psychological systems that was proposed by author earlier. 
E. D. Vol
physics.soc-ph quant-ph