human Secondary emotions are based on more complex data structures than primary ones. Accordingly, only some general aspects of secondary emotions (such as their respec- tive valence components) are represented in PAD space. 18
human The appraisal of secondary emotions depends much more on the situational context and an agent’s memory than that of primary emotions. Thus, secondary emotions are more dependent on the agent’s cognitive reasoning abilities. 19
human The releasers of secondary emotions might be learned based on the history of primary emotions in connection with memories of events, agents, and objects. 20
human The agent’s facial expressions of primary emotions (cf. Fig. 1) may accompany secondary emotions such that they do not necessarily need to be expressed by their own set of facial expressions. 21