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Related Experiment Videos

Working memory constraints on syntactic processing: an electrophysiological investigation.

S H Vos1, T C Gunter, H H Kolk

  • 1Nijmegen Institute for Cognition and Information, University of Nijmegen, The Netherlands. vos@cns.mpg.de

Psychophysiology
|April 26, 2001
PubMed
Summary

Working memory capacity influences sentence processing, as shown by event-related potentials (ERPs). This research indicates syntactic processing is linked to working memory (WM) span and load, challenging theories of a dedicated syntactic WM capacity.

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The relative timing of syntactic and semantic processes in sentence comprehension.

Neuroreport·2004

Area of Science:

  • Cognitive Neuroscience
  • Psycholinguistics
  • Neuroscience

Background:

  • Working memory (WM) is crucial for language comprehension.
  • The specific role of WM capacity in syntactic processing remains debated.
  • Understanding these constraints is key to models of language acquisition and processing.

Purpose of the Study:

  • To investigate how working memory (WM) capacity constrains the online processing of morphosyntactic violations.
  • To examine the influence of syntactic complexity, additional WM load, and verbal WM span on sentence processing.
  • To differentiate between domain-general and domain-specific WM resources in syntactic processing.

Main Methods:

  • Utilized event-related potentials (ERPs) and reaction times (RTs) to measure sentence processing.

Related Experiment Videos

  • Manipulated working memory capacity through syntactic complexity, additional load, and individual verbal WM span.
  • Analyzed behavioral (RTs) and electrophysiological (ERPs) responses to grammatical and ungrammatical sentences.

    • Main Results:

    • Behavioral grammaticality effects (RTs) were not modulated by WM manipulations.
    • Electrophysiological effects (ERPs) showed significant modulation by WM factors.
    • Anterior negativity amplitude varied with complexity/load and WM span; centroparietal positivity onset was delayed by high load and low span.

    Conclusions:

    • Online syntactic processing is demonstrably related to working memory span and additional WM load.
    • Findings challenge theories proposing a distinct WM capacity exclusively for syntactic processing.
    • Suggests that language processing relies on shared, domain-general working memory resources.