Keeping it simple: studying grammatical encoding with lexically reduced item sets.

Area of Science:

• Psycholinguistics
• Cognitive Science
• Linguistics

Background:

• Limited research exists on grammatical encoding in language production compared to lexical access.
• Subject-verb agreement generation is a key area within grammatical encoding, with known findings on attraction effects.
• Existing research highlights increased agreement errors when head and local nouns mismatch in number, and an asymmetry favoring singular head nouns.

Purpose of the Study:

• To investigate the cognitive processes underlying subject-verb agreement errors.
• To explore the significance of agreement errors for correct agreement generation.
• To propose and test paradigms with controlled lexical variability for studying grammatical encoding.

Main Methods:

• Two experiments were conducted using lexically reduced materials with controlled noun, adjective, and preposition combinations.
• Experiment 1 involved native Dutch speakers describing pictures using sentences with specific subject-verb structures.
• Experiment 2 utilized a forced-choice task where participants selected the correct verb phrase for presented noun phrases.

Main Results:

• Both experiments replicated the attraction effect, showing more agreement errors when head and local nouns mismatched in number.
• The attraction effect was stronger for singular than plural head nouns, confirming the previously reported asymmetry.
• Response times in Experiment 2 indicated similar attraction effects for both singular and plural head nouns.

Conclusions:

• Subject-verb agreement phenomena can be reliably elicited in lexically controlled contexts.
• The findings support the understanding of cognitive processes in grammatical encoding and agreement generation.
• The study discusses the implications and limitations of using lexically simple materials for linguistic research.