Content and organization of knowledge and its use in language comprehension Marta Kutas University of California, San Diego mkutas@ucsd.edu Significant work takes place at the language-memory interface that supports word and sen- tence processing. Both the content and the functional organization of our world knowledge im- pact language comprehension in real time. Each cerebral hemisphere is involved, albeit in dif- ferent ways. The nature of knowledge organization (associative, categorical, events, perceptuo- motor) and their use in predictive and/or integrative language processing have been revealed via investigations employing event-related brain potentials (ERPs). I will review some of our electrophysiological work supporting the idea that language processing is immediate and in- cremental, contextual, sometimes predictive, multi-modal, and bi-hemispheric. 3