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The hunt for structure-dependent interpretation: The case of Principle C
Jeffrey Lidz1, Cynthia Lukyanenko1, Megan Sutton1
1Department of Linguistics, University of Maryland, 1401 Marie Mount Hall, College Park, MD 20742, USA.
Cognition
|April 4, 2021
Summary
This study explored how 30-month-olds understand sentences. Vocabulary, not processing speed, influences their grasp of grammatical rules like Principle C.
Area of Science:
- Developmental Psychology
- Psycholinguistics
- Cognitive Science
Background:
- Pioneering work by Jacques Mehler explored adult sentence understanding and infant linguistic cognition.
- This study integrates Mehler's research on adult syntactic and semantic representations with infant language development.
Purpose of the Study:
- To investigate the syntactic representations underlying sentence comprehension in 30-month-old children.
- To examine the relationship between vocabulary, lexical access, syntactic integration, and Principle C knowledge in toddlers.
Main Methods:
- Utilized a suite of infant looking tasks for 30-month-olds.
- Administered three tasks measuring Principle C knowledge, lexical access speed, and syntactic processing.
- Collected data on vocabulary variability and syntactic integration.
Main Results:
- Variability in Principle C task performance was predicted by vocabulary variability.
- Lexical access speed and syntactic integration did not predict Principle C performance.
- Findings suggest vocabulary influences Principle C deployment independently of lexical access or structure building.
Conclusions:
- Successful application of Principle C in 30-month-olds appears linked to vocabulary development.
- Factors beyond lexical access and syntactic integration may be crucial for grammatical understanding.
- Further research is needed to identify these specific factors in early language acquisition.
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