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On sense and reference: Examining the functional neuroanatomy of referential processing

MPS-Authors
http://pubman.mpdl.mpg.de/cone/persons/resource/persons147

Petersson,  Karl Magnus
Neurobiology of Language Group, MPI for Psycholinguistics, Max Planck Society;
The Neurobiology of Language, MPI for Psycholinguistics, Max Planck Society;
MGH/MIT/HMS Athinoula A. Martinos Center for Biomedical Imaging;
Cognitive Neurophysiology Research Group, Department of Clinical Neuroscience, Karolinska Institutet;
Centre for Intelligent Systems, Faculty of Sciences and Technology, Universidade do Algarve;

http://pubman.mpdl.mpg.de/cone/persons/resource/persons189

Van Berkum,  Jos J. A.
Neurobiology of Language Group, MPI for Psycholinguistics, Max Planck Society;
The Neurobiology of Language, MPI for Psycholinguistics, Max Planck Society;
Language in Action , MPI for Psycholinguistics, Max Planck Society;
Centre for Cognitive Neuroimaging, Donders Institute for Brain, Cognition and Behavior, External Organizations;

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Nieuwland_2007_sense.pdf
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Citation

Nieuwland, M. S., Petersson, K. M., & Van Berkum, J. J. A. (2007). On sense and reference: Examining the functional neuroanatomy of referential processing. NeuroImage, 37(3), 993-1004. doi:10.1016/j.neuroimage.2007.05.048.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-1B7B-4
Abstract
In an event-related fMRI study, we examined the cortical networks involved in establishing reference during language comprehension. We compared BOLD responses to sentences containing referentially ambiguous pronouns (e.g., “Ronald told Frank that he…”), referentially failing pronouns (e.g., “Rose told Emily that he…”) or coherent pronouns. Referential ambiguity selectively recruited medial prefrontal regions, suggesting that readers engaged in problem-solving to select a unique referent from the discourse model. Referential failure elicited activation increases in brain regions associated with morpho-syntactic processing, and, for those readers who took failing pronouns to refer to unmentioned entities, additional regions associated with elaborative inferencing were observed. The networks activated by these two referential problems did not overlap with the network activated by a standard semantic anomaly. Instead, we observed a double dissociation, in that the systems activated by semantic anomaly are deactivated by referential ambiguity, and vice versa. This inverse coupling may reflect the dynamic recruitment of semantic and episodic processing to resolve semantically or referentially problematic situations. More generally, our findings suggest that neurocognitive accounts of language comprehension need to address not just how we parse a sentence and combine individual word meanings, but also how we determine who's who and what's what during language comprehension.