Syntactic predictability in the recognition of carefully and casually produced speech

Area of Science:

• Psycholinguistics
• Cognitive Science
• Speech Processing

Background:

• Spoken word recognition relies on integrating multiple linguistic cues.
• Syntactic context and acoustic-phonetic information are crucial for efficient processing.
• Listeners may adjust reliance on different cues based on signal reliability.

Purpose of the Study:

• To investigate the influence of syntactic predictability on spoken word recognition.
• To determine if listeners weigh syntactic information more heavily with reduced acoustic-phonetic reliability.
• To examine how speaking style affects the use of syntactic context.

Main Methods:

• Conducted three eye-tracking experiments using Dutch subordinate clauses.
• Manipulated syntactic predictability by altering word order (past participles and auxiliary verbs).
• Manipulated acoustic-phonetic reliability by varying speaking style (careful vs. casual).

Main Results:

• Participants recognized words faster when syntactically predictable (auxiliary verb followed by past participle).
• This syntactic facilitation effect was more pronounced for casually produced sentences compared to carefully produced ones.
• Later processing measures indicated a stronger influence of syntactic predictability in less reliable acoustic conditions.

Conclusions:

• Syntactic predictability significantly influences spoken word recognition.
• Listeners dynamically adapt their reliance on syntactic information based on acoustic-phonetic reliability.
• Syntactic cues are particularly valuable for understanding reduced speech in conversational settings.