Illusions of plausibility in adjuncts and co-ordination

Illusions of grammaticality, where ungrammatical sentences are misperceived as grammatical (e.g. The key to the cabinets were rusty), have been widely studied during language comprehension. Such grammatical illusions have been in fl uential in debate surrounding so-called representational and retrieval-based accounts of linguistic dependency resolution. Whether analogous illusions of plausibility occur at the level of semantic interpretation has only recently begun to be examined, and thus far, these illusions have been restricted to a narrow range of linguistic phenomena. In two eye-tracking during reading experiments (n = 48 in each) and two self-paced reading experiments (n = 192 in each) we examined the possibility of semantic illusions during the processing of adjuncts and co-ordination. Across experiments, our results suggest illusions of plausibility during dependency resolution, though interference e ff ects were clearer in adjuncts than co-ordination. We argue that our fi ndings are more compatible with retrieval-based rather than representational accounts of linguistic dependency resolution.