Research on language comprehension has focused on the resolution of syntactic ambiguities, and most studies have employed garden-path sentences to determine the system's preferences and to assess its use of nonsyntactic sources information. A topic that has been neglected is how syntactically challenging but essentially unambiguous sentences are…

Experiments involving 121 college students in the Netherlands were based on the hypothesis that the difficulty of retrieving a lexical item for language production has at least 2 different sources. Experiments supported the distinction between a preverbal conceptual and a lexical level of representation in language production. (SLD)