Almost all fields of interaction, adaptation and function have concluded issues related to mind frame of humans. The use of psychological principles and techniques to aid basic functioning of humans in various avenues is the main concern of applied psychology. Different spheres to understand human behavior have been discovered through applied psychology. It is a great combination of various sub-fields of psychology which takes assistance of scientific methods to conclude human behavior and certain psychological disorders.
In applied psychology the understanding of human mental processes, root of emotions and causes of behavioral changes becomes the real foundations through which various areas of psychological specialization are studied. Understanding individuals, groups and communities in different fields of human society is the result of applied psychology. It is an ever growing field which takes assistance from other areas of psychology.