Chapters: Royal Canadian Numismatic Association Medals and Awards. Source: Wikipedia. Pages: 224. Not illustrated. Free updates online. Purchase includes a free trial membership in the publisher's book club where you can select from more than a million books without charge. Excerpt: History of psychologyBranches of psychology Evolutionary psychology (EP) attempts to explain psychological traitssuch as memory, perception, or languageas adaptations, that is, as the functional products of natural selection or sexual selection. Adaptationist thinking about physiological mechanisms, such as the heart, lungs, and immune system, is common in evolutionary biology. Evolutionary psychology applies the same thinking to psychology. Modern evolutionary psychologists (see, for example, Confer, Easton, Fleischman, Goetz, Lewis, Perilloux