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The neuroanatomical overlap of syntax processing in music and language : Evidence from lesion and intracranial ERP studies

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Sammler,  Daniela
Max Planck Research Group Neurocognition of Music, MPI for Human Cognitive and Brain Sciences, Max Planck Society;

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Sammler, D. (2009). The neuroanatomical overlap of syntax processing in music and language: Evidence from lesion and intracranial ERP studies. PhD Thesis, Max Planck Institute for Human Cognitive and Brain Sciences, Leipzig.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0010-E23E-B
Abstract
Both music and language are sequences of discrete elements that are organised according to “syntactic” rules. It has been proposed that syntactic processing in music and language shares cognitive and neural resources. The overlap of cognitive resources is supported by interactions and transfer effects between musical and linguistic syntax processing. The neural location of the shared operations is, however, not yet fully clarified. The present dissertation investigated whether the inferior frontal gyrus (IFG) and the superior temporal gyrus (STG) represent anatomical convergence zones of syntax processing in music and language by means of event-related potentials (ERPs). The “Early Right Anterior Negativity” (ERAN) and the “Early Left Anterior Negativity” (ELAN) that are elicited by syntactic violations in chord progressions and sentences respectively were studied. Experiment 1 investigated whether lesions in brain regions that are essentially involved in the processing of linguistic syntax lead to parallel deficits in the processing of musical syntax. To this end, the ERAN was measured in two patient groups with lesions in the left IFG or the left anterior STG and compared with data of healthy controls. In Experiment 2, ERPs were recorded from subdural grid-electrodes, the electrocortical equivalents of the ERAN and ELAN were identified, and their generators were localised and compared by means of distributed source modelling. The combined results indicate an overlap of musical and linguistic syntax processing within the left IFG as well as the STG in both hemispheres, thus, identifying these structures as anatomical correlate of shared syntactic processing components in music and language.