No Effects of Predictability on Word-Meaning Priming and Incidental Memory

Area of Science:

• Cognitive Psychology
• Psycholinguistics
• Neuroscience

Background:

• Word-meaning priming occurs when encountering a homonym in a context biases interpretation, making that meaning easier to access later.
• This priming effect may rely on general episodic memory processes, suggesting it could be influenced by factors affecting episodic learning, such as predictability.

Purpose of the Study:

• To investigate whether contextual predictability affects word-meaning priming and incidental memory during language comprehension.
• To test the hypothesis that both high and low predictability of target words enhance word-meaning priming, similar to effects observed in episodic memory.

Main Methods:

• Four online experiments exposed participants to sentences designed to emphasize specific meanings of sentence-final target words.
• Target words varied in contextual predictability.
• Word-meaning priming was assessed using associate production and semantic relatedness judgment tasks.

Main Results:

• Evidence for word-meaning priming was observed across all experiments.
• Contrary to hypotheses, no significant effects of contextual predictability on word-meaning priming were found.
• Contextual predictability did not influence incidental memory for the language stimuli.

Conclusions:

• The findings suggest that predictability-guided updating mechanisms are infrequently engaged during typical language comprehension.
• These results have implications for understanding the architectural principles of the language system and its interaction with memory processes.