Changes in functional connectivity within the fronto-temporal brain network induced by regular and irregular Russian verb production

Maxim Kireev, Natalia Slioussar, Alexander D. Korotkov, Tatiana V. Chernigovskaya, Svyatoslav V. Medvedev

Research output: Contribution to journalArticle

11 Scopus citations

Abstract

Functional connectivity between brain areas involved in the processing of complex language forms remains largely unexplored. Contributing to the debate about neural mechanisms underlying regular and irregular inflectional morphology processing in the mental lexicon, we conducted an fMRI experiment in which participants generated forms from different types of Russian verbs and nouns as well as from nonce stimuli. The data were subjected to a whole brain voxel-wise analysis of context dependent changes in functional connectivity [the so-called psychophysiological interaction (PPI) analysis]. Unlike previously reported subtractive results that reveal functional segregation between brain areas, PPI provides complementary information showing how these areas are functionally integrated in a particular task. To date, PPI evidence on inflectional morphology has been scarce and only available for inflectionally impoverished English verbs in a same-different judgment task. Using PPI here in conjunction with a productio
Original languageEnglish
Number of pages10
JournalFrontiers in Human Neuroscience
Volume9
Issue number36
DOIs
StatePublished - 2015

Keywords

  • fMRI
  • Russian
  • inflectional morphology
  • functional connectivity
  • psycho–physiological interactions
  • fronto-temporal brain network
  • dual-route theories
  • single-route theories

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