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
20 Citations (Scopus)

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
JournalBrain and Language
Volume127
Issue number2
Pages (from-to)241-250
Number of pages10
ISSN0093-934X
DOIs
Publication statusPublished - 11.2013

Research Areas and Centers

  • Health Sciences

DFG Research Classification Scheme

  • 206-08 Cognitive and Systemic Human Neuroscience
  • 206-05 Experimental Models for Investigating Diseases of the Nervous System
  • 206-07 Clinical Neurology Neurosurgery and Neuroradiology

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