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Processing Lexical and Speaker Information in Repetition and Semantic/Associative Priming
1Division of Communication Sciences and Disorders, Ohio University, Athens, OH, 45701, USA. leec1@ohio.edu.
Journal of Psycholinguistic Research
|July 29, 2017
Summary
Speaker variability in spoken word recognition affects form but not meaning. Repetition priming is reduced with different speakers, while semantic priming remains unaffected, suggesting shallow processing of speaker information.
Area of Science:
- Psycholinguistics
- Cognitive Psychology
- Speech Processing
Background:
- Spoken word recognition involves integrating acoustic signals with stored lexical representations.
- Understanding how speaker-specific information influences this process is crucial for models of speech perception.
Purpose of the Study:
- To investigate the interaction between lexical processing and speaker-specific information in spoken word recognition.
- To determine if repetition and semantic priming are affected by speaker variability.
Main Methods:
- Two experiments using lexical decision and speaker discrimination tasks.
- Varying prime-target relationships (repetition, semantic relation) and speaker identity (same vs. different).
- Examining the time course of processing speaker information using different interstimulus intervals (ISIs).
Main Results:
- Repetition priming was reduced when prime and target were spoken by different speakers.
- Semantic/associative priming was unaffected by speaker variability.
- Speaker variability impacted lexical decision and speaker discrimination facilitation.
Conclusions:
- Speaker variability affects the processing of a word's form, not its meaning.
- Speaker-specific information appears to be processed at a relatively shallow level.
- This suggests distinct processing pathways for phonetic form and semantic content.
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