Taxing working memory with syntax: Bihemispheric modulations

Andrea Santi, Yosef Grodzinsky

Research output: Contribution to journalArticlepeer-review

Abstract

Motivated by claims that relegate the syntactic functions of Broca's region to working memory (WM) and not to language-specific mechanisms, we conducted an fMRI and an aphasia study that featured two varieties of intrasentential dependency relations: One was syntactic movement (e.g., Which boy does the girl think ◀ examined Steven?), the other was antecedent-reflexive binding (e.g., Jill thinks the boy examined himself). In both, WM is required to link two nonadjacent positions. Syntactically, they are governed by distinct rule systems. In health, the two dependencies modulated activity in distinct brain regions within the left inferior frontal gyrus and the left middle temporal gyrus. Binding uniquely modulated activation in the right frontal lobe. Receptive abilities in brain damaged patients likewise distinguished among these syntactic types. The results indicate that sentence comprehension is governed by syntactically carved neural chunks and provide hints regarding a language related region in the right hemisphere.

Original languageEnglish
Pages (from-to)1089-1097
Number of pages9
JournalHuman Brain Mapping
Volume28
Issue number11
DOIs
StatePublished - Nov 2007
Externally publishedYes

Keywords

  • Aphasia
  • Broca area
  • Linguistics
  • Memory
  • Short-term
  • fMRI

Fingerprint

Dive into the research topics of 'Taxing working memory with syntax: Bihemispheric modulations'. Together they form a unique fingerprint.

Cite this