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Published on: May 9, 2019
Event-related brain potentials index cue-based retrieval interference during sentence comprehension.
Andrea E Martin1, Mante S Nieuwland, Manuel Carreiras
1Basque Center on Cognition, Brain, and Language, Donostia-San Sebastián, Spain. a.martin@bcbl.eu
Neuroimage
|September 20, 2011
Summary
Language comprehension relies on memory retrieval, which can be disrupted by interfering information. This study shows that even grammatically correct sentences can cause processing interference, impacting how we understand language.
Area of Science:
- Neuroscience
- Psycholinguistics
- Cognitive Science
Background:
- Successful language comprehension necessitates accessing previously processed information within discourse.
- Cue-based retrieval models suggest linguistic dependency resolution is susceptible to interference from intervening information.
- Morphological gender agreement in languages like Castilian Spanish provides a unique window into these memory processes.
Purpose of the Study:
- To investigate the role of memory retrieval interference in online language processing.
- To examine the neurocognitive mechanisms underlying ellipsis resolution in Castilian Spanish.
- To test predictions of cue-based retrieval accounts against event-related brain potential (ERP) data.
Main Methods:
- Recording event-related brain potentials (ERPs) from participants reading sentences with noun-phrase ellipsis.
- Manipulating gender agreement between ellipsis-indicating determiners (otro/a) and antecedent nouns.
- Introducing intervening noun phrases (attractors) with matching or mismatching gender to test for interference effects.
Main Results:
- Grammatically incorrect determiners elicited a sustained negativity (400-1000ms), differing from typical P600 effects for agreement violations.
- This negativity was modulated by the gender of the intervening attractor noun phrase.
- Grammatically correct determiners showed increased negativity when the attractor mismatched the antecedent's gender, suggesting temporary consideration of unavailable phrases.
Conclusions:
- The findings provide the first ERP evidence for cue-based retrieval interference during the comprehension of grammatically correct sentences.
- Results challenge existing neurocognitive models by demonstrating interference effects even when grammatical rules are not violated.
- This highlights the dynamic interplay between memory retrieval, interference, and grammatical processing in real-time language comprehension.
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