Syntactic alignment and participant role in dialogue

Area of Science:

• Psycholinguistics
• Sociolinguistics
• Cognitive Science

Background:

• Dialogue theories posit speakers address both direct addressees and indirect side participants.
• Linguistic behavior, particularly syntactic choices, may be influenced by a participant's role in an interaction.
• Syntactic alignment, the tendency to adopt similar grammatical structures, is a key aspect of dialogue.

Purpose of the Study:

• To investigate if a participant's role (speaker vs. addressee) affects their linguistic behavior in dialogue.
• To determine if syntactic alignment is influenced by the prior role of the speaker or the addressee.
• To explore the cognitive mechanisms, such as depth of processing, underlying role-dependent alignment.

Main Methods:

• Three experiments were conducted involving participants in dialogue settings.
• Participants produced picture descriptions, mirroring the syntactic structures of preceding speakers.
• The prior participant role (addressee or side-participant) of both the current speaker and current addressee was manipulated.

Main Results:

• Syntactic alignment occurred even when the previous utterance was not directly addressed to the current speaker, extending beyond speaker-addressee dyads.
• The prior role of the current speaker significantly affected alignment: prior addressees showed more alignment than prior side-participants.
• The prior role of the current addressee did not influence the degree of syntactic alignment observed.

Conclusions:

• Syntactic alignment in dialogue is sensitive to the speaker's interaction history, not solely the immediate addressee.
• Findings suggest that the depth of processing during information encoding plays a crucial role in mediating role-based linguistic alignment.
• The results challenge simple models of dialogue and highlight the cognitive underpinnings of interactive language use.