¹Such a multi-component definition of emotions, for example by Scherer (2009), is wide-spread in psychological literature. In contrast, in neuroscience and AI emotions are often defined more narrowly, or not properly defined at all. The list of such components given in the text is not at all complete; one might add bodily responses (Nummenmaa et al., 2014), such as given in the fear example in the main text, as well as social aspects (Nummenmaa et al., 2012).