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Parallelism effects and verb activation: the sustained reactivation hypothesis.

Sarah M Callahan¹, Lewis P Shapiro, Tracy Love

¹University of California, San Diego, La Jolla, CA 92093-0109, USA. smcallahan@ucsd.edu

Journal of Psycholinguistic Research

|September 24, 2009

Summary

This study on sentence parallelism found that conjunctions reactivate verbs from the first part of a sentence. This reactivation is sustained throughout the second part, supporting the sustained reactivation hypothesis.

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Area of Science:

Psycholinguistics
Cognitive Science
Linguistics

Background:

Syntactic parallelism influences sentence processing.
Understanding the cognitive mechanisms of parallelism is crucial for psycholinguistics.

Purpose of the Study:

To investigate the temporal dynamics of verb activation during sentence parallelism.
To test the sustained reactivation hypothesis of syntactic parallelism.

Main Methods:

Examined verb activation at four time points within and-coordinated sentences.
Measured neural activation related to parallel elements in conjuncts.

Main Results:

No significant verb activation was found 1,600 ms after the first conjunct (PP1).
Verb activation was detected immediately after the conjunction (PP2), at 1,100 ms (PP3), and at the end of the second conjunct (PP4).

Conclusions:

The conjunction elicits sustained reactivation of the parallel verb.
Findings support the sustained reactivation hypothesis for processing parallel structures in sentences.