Related Experiment Video
Updated: Jun 27, 2026
05:38
Interaction between Phonological and Semantic Processes in Visual Word Recognition using Electrophysiology
Published on: June 29, 2021
The separation of processing stages in a lexical interference fMRI-paradigm
Stefanie Abel1, Katharina Dressel, Ruth Bitzer
1Department of Neurology, University Hospital RWTH, Aachen, Germany. sabel@ukaachen.de
Neuroimage
|November 19, 2008
Summary
This study investigated how different word distractors affect picture naming. Associatively-related distractors most effectively speed up naming, showing distinct neural patterns linked to cognitive models of word production.
Area of Science:
- Cognitive Neuroscience
- Psycholinguistics
- Neuroimaging
Background:
- Picture-word interference paradigms reveal how linguistic distractors influence picture naming.
- Related words can either facilitate (associative, phonological) or inhibit (categorical) naming speed, depending on stimulus onset.
- Previous research has examined these effects separately.
Purpose of the Study:
- To integrate all four auditory distractor types (associative, phonological, categorical, unrelated) into a single paradigm.
- To directly compare behavioral and neural interference effects of these distractor types.
- To validate a cognitive model of word production using fMRI data.
Main Methods:
- Healthy subjects participated in a behavioral study and functional magnetic resonance imaging (fMRI) at 3 Tesla.
- An auditory picture-word interference paradigm was used with a stimulus onset asynchrony (SOA) of -200 ms.
- Analysis focused on naming response times (RTs) and brain activation patterns.
Main Results:
- Associatively-related distractors significantly speeded RTs more than phonologically-related distractors.
- fMRI revealed distinct neural activations: left superior temporal gyrus for phonological distractors, and lingual gyrus for associative and categorical distractors.
- Categorical distractors engaged conflict monitoring and articulatory demands, while associative distractors showed priming of articulatory planning.
Conclusions:
- Neural network activations observed via fMRI interference paradigms align with predictions from a cognitive model of word production.
- Different distractor types engage specific cognitive processes and neural substrates during word production.
- The study provides a comprehensive comparison of interference effects in a unified paradigm.
