With the respectability of the senses and feelings established, textbooks written by the Scottish philosophers began to include such topics as percep… - Baldwin R. Hergenhahn

According to Wertheimer, reaching an understanding involves many aspects of learners, such as their emotions, attitudes, and perceptions, as well as their intellects. In gaining insight into the solution to a problem, a student need not—in fact, should not—be logical. Rather, the student should cognitively arrange and rearrange the components of the problem until a solution based on understanding is reached. Exactly how this process is done will vary from student to student.

Primitive humans responded to all of their emotional experiences in terms of myths, and it is this tendency toward myth making that is registered in the collective unconscious and passed on to future generations. What we inherit, then, is the tendency to reexperience some manifestation of these primordial myths as we encounter events that have been associated with those myths for eons. Each archetype can be viewed as an inherited tendency to respond emotionally and mythologically to certain kinds of experience—for example, when a child, a mother, a lover, a nightmare, a death, a birth, an earthquake, or a stranger is encountered.

In his approach to the history of psychology, E. G. Boring (1886–1968) stressed the importance of the Zeitgeist in determining whether, or to what extent, an idea or viewpoint will be accepted. Clearly, ideas do not occur in a vacuum. A new idea, to be accepted or even considered, must be compatible with existing ideas. In other words, a new idea will be tolerated only if it arises within an environment that can assimilate it.