Despite their opposite emotional effects, humor and horror are highly similar phenomena. They both can be traced back to (the detection, resolution, and emotional elaboration of) incongruities, understood as semantic violations through unexpected combinations of oppositional information. However, theoretical and experimental comparisons between humor and resolvable incongruities that elicit other emotions than exhilaration have been lacking so far. To gain more insights into the linguistic differences between humor and horror and the cognitive real-time processing of both, a main concern of this book is to discuss the transferability of linguistic humor theories to a systematic horror investigation and directly compare self-paced reading times (SPR), facial actions (FACS), and event-related brain potentials (ERP) of normed minimal quadruplets with frightening and humorous incongruities as well as (in)coherent stimuli. The results suggest that humor and horror share cognitive resources to detect and resolve incongruities. To better distinguish humor from neighboring phenomena, this book refines current humor theories by incorporating humor and horror in a cognitive incongruity processing model.