Natural selection: early school of thought promoted by james and influenced by darwin; explored how mental and behavioral processes function how they enable the organism to adapt, survive, and flourish early school of thought promoted by wundt and. Titchener; used introspection to reveal the structure of the human mind. the view that psychology (1) should be an objective science that (2) studies behavior without reference to mental processes. Today"s science sees traits and behaviors arising from the interaction of nature and nurture. the principle that, among the range of inherited trait variations, those contributing to reproduction and survival will most likely be passed on to succeeding generations. Evolutionary psychology: the study of the evolution of behavior and the mind, using principles of natural selection. Culture: the study of the relative power and limits of genetic and environmental influences on behavior. the enduring behaviors, ideas, attitudes, values, and traditions shared by a group of.