SURPLUS ENERGY THEORY By Nugent, Pam M.S. - April 13, 2013 a hypothesis that children and young animals engage in locomotor play due to excess energy. See play. SURPLUS ENERGY THEORY: "In surplus energy theory excess energy is expended in play." Related Psychology Terms ASSOCIATIVE PLAY ANIMAL PLAY EXERCISE PLAY SOLITARY PLAY BOUND ENERGY SEMANTIC PRIMITIVE DOPAMINE HYPOTHESIS ACTION-SPECIFIC ENERGY SOCIODRAMATIC PLAY ANIMAL PATERNAL BEHAVIOR Cite this page: Nugent, Pam M.S., "SURPLUS ENERGY THEORY," in PsychologyDictionary.org, April 13, 2013, https://psychologydictionary.org/surplus-energy-theory/ (accessed June 25, 2017).