Even asking a few people around you what does “psychology” or “psychologist” mean to them will reveal that psychology is almost synonymous with issues like managing stress or treating depression for them. However, the currently accepted definition of psychology is the scientific study of behavior and mental processes. Although most people think of psychological problems and their treatment as the subject matter of psychology, psychologist also study the most ordinary phenomena that are considered completely normal as well as those that are eccentric or problematic. For example, few people think about how our brains interpret vibrations that reach our ear drums as meaningful sentences, or music that we can judge as harmonious even if we hear it for the first time, or an environmental sound such as glass breaking, and few would think of this as related to psychology. But, this process, which we call auditory perception, has been an area of psychological research for decades. Psychologists study a wide range of topics that extend from cells and chemicals to societies and cultures.