Figure 4.

Interplay of ABC Motivations. The different types of motivation (reward) are interwoven in such a way that in our model type A motivation through the mediation of type B increasingly sets in type C, over time—this relationship has recently been established and also includes the neurotransmitters involved, which appeared at different times in evolution and enzymatically emerge from one another, i.e., they are formed from one another. The described sequence also expresses maturation processes (ontogenetic, phylogenetic) over time (for further information, references: see text).