Fronto-parietal dorsal and ventral pathways in the context of different linguistic manipulations

Philipp Kellmeyer*, Wolfram Ziegler, Claudia Peschke, Eisenberger Juliane, Susanne Schnell, Annette Baumgaertner, Cornelius Weiller, Dorothee Saur

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

This study investigates structural connectivity between left fronto-parietal brain regions that were identified in a previous fMRI study which used different linguistic manipulation tasks. Diffusion-weighted images were acquired from 20 volunteers. Structural connectivity between brain regions from the fMRI study was computed using probabilistic fiber tracking. For suprasegmental manipulation, left inferior parietal lobule (IPL) and left inferior frontal gyrus (IFG), pars opercularis, were connected by a dorsal pathway via the arcuate fascicle and superior longitudinal fascicle III. For segmental manipulation, left IPL and IFG, pars triangularis, were connected by a ventral pathway via the middle longitudinal fascicle and the extreme capsule. We conclude that the dorsal pathway provides a route for mapping from phonological memory in IPL to the inferior frontal articulatory network while the ventral pathway could facilitate the modulation of phonological units based on lexical-semantic aspects, mediate the complexity of auditory objects and the unification of actor-event schemata.

Original languageEnglish (US)
Pages (from-to)241-250
Number of pages10
JournalBrain and Language
Volume127
Issue number2
DOIs
StatePublished - Nov 2013

Keywords

  • DTI
  • Dorsal
  • Fronto-parietal
  • Pathway
  • Probabilistic fiber tracking
  • Ventral

ASJC Scopus subject areas

  • Language and Linguistics
  • Experimental and Cognitive Psychology
  • Linguistics and Language
  • Cognitive Neuroscience
  • Speech and Hearing

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