Neural substrates of the 'low-level' system for speech articulation: Evidence from primary opercular syndrome

Maria Caterina Silveri, Francesco Incordino, Rita Lo Monaco, Alessandra Bizzarro, Carlo Masullo, Francesca Piludu, Cesare Colosimo

Research output: Contribution to journalArticlepeer-review

Abstract

We describe a patient with progressive disorder of speech, without language impairment (opercular syndrome). Morphometric analysis confirmed asymmetric volume reduction of the precentral areas (>left). Diffusion imaging showed significant white matter changes in the left frontal lobe, with specific involvement of the left corticobulbar tract and connections between supplementary/pre-supplementary motor areas and the frontal operculum (frontal aslant tract). We suggest that the organization of expressive language includes a 'low level' motor system principally distributed in the left hemisphere that shows specific susceptibility to neurodegeneration, distinct from neural systems subtending praxic, and cognitive aspects of language.

Original languageEnglish
JournalJournal of Neuropsychology
DOIs
Publication statusAccepted/In press - 2016

Keywords

  • Aslant tract
  • Opercular syndrome
  • Phonological short-term memory
  • Primary anarthria

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology
  • Behavioral Neuroscience
  • Cognitive Neuroscience

Fingerprint

Dive into the research topics of 'Neural substrates of the 'low-level' system for speech articulation: Evidence from primary opercular syndrome'. Together they form a unique fingerprint.

Cite this