Communicative predictions can overrule linguistic priors.

Area of Science:

• Cognitive Science
• Psycholinguistics
• Neuroscience

Background:

• Efficient human communication relies on predictive processing.
• Listeners must adapt predictions to the specific communicative context for optimal understanding.

Purpose of the Study:

• To investigate the flexibility and selectivity of prediction adaptation during speech processing.
• To determine if listeners fine-tune predictions to individual interlocutor language styles.
• To examine the long-term retention and reactivation of these specific predictions.

Main Methods:

• Developed a novel experimental paradigm to differentiate speakers by sentence structure probabilities.
• Utilized probe trials to infer and track participants' syntactic expectations over time.
• Assessed the reactivation of learned expectations after a nine-month interval.

Main Results:

• Listeners demonstrated the ability to fine-tune linguistic expectations to individual speaker styles.
• Highly specific expectations were rapidly reactivated upon re-exposure to a speaker's style, independent of speaker identity alone.
• These context-specific predictions showed resilience, persisting for at least nine months.

Conclusions:

• Communicative interaction dynamically shapes and solidifies interlocutor-specific predictions.
• These fine-tuned predictions can override pre-existing linguistic priors.
• The findings underscore the adaptive nature of predictive processing in real-time social communication.