Distinct Patterns of Neural Modulation during the Processing of Conceptual and Syntactic Anomalies

摘要: The aim of this study was to gain further insights into how the brain distinguishes between meaning and syntax during language comprehension. Participants read made plausibility judgments on sentences that were plausible, morphosyntactically anomalous, or pragmatically anomalous. In an event-related potential (ERP) experiment, morphosyntactic pragmatic violations elicited significant P600 N400 effects, respectively, replicating previous ERP studies have established qualitative differences in processing conceptually syntactic anomalies. Our main focus a functional magnetic resonance imaging (fMRI) which same subjects presented pseudorandomized sequence while performing task as experiment. Rapid-presentation fMRI methods allowed us estimate hemodynamic response at successive temporal windows unfolded word by word, without assumptions about shape underlying function. Relative nonviolated sentences, anomalies associated with increased left inferior frontal regions decreased right medial parietal cortex. bilateral lateral regions. Thus, overlapping neural networks modulated opposite directions two types anomaly. These findings document both quantitative these This suggests information can be processed different ways but systems.