Mapping dissociations in verb morphology

Aureliu Lavric, Diego Pizzagalli, Simon Forstmeier, Gina Rippon

Research output: Contribution to journalArticle

Abstract

Substantial behavioural and neuropsychological evidence has been amassed to support the dual-route model of morphological processing, which distinguishes between a rule-based system for regular items (walk–walked, call–called) and an associative system for the irregular items (go–went). Some neural-network models attempt to explain the neuropsychological and brain-mapping dissociations in terms of single-system associative processing. We show that there are problems in the accounts of homogeneous networks in the light of recent brain-mapping evidence of systematic double-dissociation. We also examine the superior capabilities of more internally differentiated connectionist models, which, under certain conditions, display systematic double-dissociations. It appears that the more differentiation models show, the more easily they account for dissociation patterns, yet without implementing symbolic computations.
Original languageEnglish
Pages (from-to)301-308
Number of pages8
JournalTrends in Cognitive Sciences
Volume5
Issue number7
DOIs
Publication statusPublished - 1 Jul 2001

Keywords

  • past tense
  • morphology
  • dissociations
  • single-route
  • dual-route

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    Lavric, A., Pizzagalli, D., Forstmeier, S., & Rippon, G. (2001). Mapping dissociations in verb morphology. Trends in Cognitive Sciences, 5(7), 301-308. https://doi.org/10.1016/S1364-6613(00)01703-4