Domain-specific and domain-general processing in left perisylvian cortex: Evidence from Russian

Anastasia Klimovich-Gray*, Mirjana Bozic, William D. Marslen-Wilson

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


The processing of words containing inflectional affixes triggers morphophonological parsing and affix-related grammatical information processing. Increased perceptual complexity related to stem-affix parsing is hypothesized to create predominantly domain-general processing demands, whereas grammatical processing primarily implicates domain-specific linguistic demands. Exploiting the properties of Russian morphology and syntax, we designed an fMRI experiment to separate out the neural systems supporting these two demand types, contrasting inflectional complexity, syntactic (phrasal) complexity, and derivational complexity in three comparisons: (a) increase in parsing demands while controlling for grammatical complexity (inflections vs. phrases), (b) increase in grammatical processing demands, and (c) combined demands of morphophonological parsing and grammatical processing (inflections and phrases vs. derivations). Left inferior frontal and bilateral temporal areas are most active when the two demand types are combined, with inflectional and phrasal complexity contrasting strongly with derivational complexity (which generated only bilateral temporal activity). Increased stem-affix parsing demands alone did not produce unique activations, whereas grammatical structure processing activated bilateral superior and middle temporal areas. Selective left frontotemporal language system engagement for short phrases and inflections seems to be driven by simultaneous and interdependent domain-general and domain-specific processing demands.

Original languageEnglish
Pages (from-to)382-397
Number of pages16
JournalJournal of Cognitive Neuroscience
Issue number2
Publication statusPublished - 1 Feb 2017

Bibliographical note

Funding Information:
This research was supported by an advanced investigator grant to W. M. W. from the European Research Council (AdG 230570 NEUROLEX) and by MRC Cognition and Brain Sciences Unit (CBSU) funding to W. M. W. (U.1055.04.002.00001.01). Computing resources were provided by MRC CBSU. We thank members of the Neurolex group for their comments and support during the conduct of this research, and Professor Simon Franklin for invaluable linguistic advice.

Publisher Copyright:
© 2016 Massachusetts Institute of Technology.


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