Increased functional connectivity in the ventral and dorsal streams during retrieval of novel words in professional musicians

Human Brain Mapping
Eva DittingerStefan Elmer

Abstract

Current models of speech and language processing postulate the involvement of two parallel processing streams (the dual stream model): a ventral stream involved in mapping sensory and phonological representations onto lexical and conceptual representations and a dorsal stream contributing to sound-to-motor mapping, articulation, and to how verbal information is encoded and manipulated in memory. Based on previous evidence showing that music training has an influence on language processing, cognitive functions, and word learning, we examined EEG-based intracranial functional connectivity in the ventral and dorsal streams while musicians and nonmusicians learned the meaning of novel words through picture-word associations. In accordance with the dual stream model, word learning was generally associated with increased beta functional connectivity in the ventral stream compared to the dorsal stream. In addition, in the linguistically most demanding "semantic task," musicians outperformed nonmusicians, and this behavioral advantage was accompanied by increased left-hemispheric theta connectivity in both streams. Moreover, theta coherence in the left dorsal pathway was positively correlated with the number of years of music training....Continue Reading

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Citations

Mar 16, 2018·Annals of the New York Academy of Sciences·Stefan Elmer, Lutz Jäncke
Mar 17, 2018·Scientific Reports·Stefan ElmerAntoni Rodríguez-Fornells
Sep 29, 2020·Journal of Cognitive Neuroscience·Mylène BarbarouxMireille Besson
Mar 11, 2020·Frontiers in Psychology·Kate A YurgilPaul J Colombo

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