Cerebral Cortex Advance Access originally published online on January 4, 2006
Cerebral Cortex 2006 16(12):1709-1717; doi:10.1093/cercor/bhj106
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Processing Linguistic Complexity and Grammaticality in the Left Frontal Cortex
1 Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig, Germany, 2 Department of Psychology and Helen Wills Neuroscience Institute, University of California, Berkeley, CA, USA, 3 Research Group Neurolinguistics, Phillips-University Marburg, Marburg, Germany
Address correspondence to Angela D. Friederici, Max Planck Institute for Human Cognitive and Brain Sciences, Department of Neuropsychology, Stephanstrasse 1a, 04103 Leipzig, Germany. Email: angelafr{at}cbs.mpg.de.
We used event-related functional magnetic resonance imaging to directly compare the hemodynamic responses associated with varying degrees of linguistic complexity with those engendered by the processing of ungrammatical utterances. We demonstrate a dissociation within the left inferior frontal cortex between the deep frontal operculum, which responds to syntactic violations, and a core region of Broca's area, that is, the inferior portion of the left pars opercularis in Brodmann area 44, the activation of which is modulated as a function of the complexity of well-formed sentences. The data demonstrate that different brain regions in the prefrontal cortex support distinct mechanisms in the mapping from a linguistic form onto meaning, thereby separating ungrammaticality from linguistic complexity.
Key Words: Broca's area fMRI left frontal operculum linguistic complexity pars opercularis syntax ungrammaticality
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J. Brauer and A. D. Friederici Functional neural networks of semantic and syntactic processes in the developing brain. J. Cogn. Neurosci., October 1, 2007; 19(10): 1609 - 1623. [Abstract] [Full Text] [PDF] |
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