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Updated: Aug 12, 2026
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A Cognitive Paradigm to Investigate Interference in Working Memory by Distractions and Interruptions
Published on: July 16, 2015
The time course of picture-word interference
Summary
This study challenges the relative speed hypothesis for Stroop-like effects. It reveals an internal processing asymmetry influencing how we process words and pictures in different cognitive tasks.
Area of Science:
- Cognitive Psychology
- Experimental Psychology
- Neuroscience
Background:
- Stroop interference occurs when word meaning conflicts with picture naming or reading.
- Previous research suggested the relative speed hypothesis explains these interferences.
- This hypothesis posits faster distractor processing than target processing.
Purpose of the Study:
- To investigate the temporal dynamics of picture-word interferences.
- To test the validity of the relative speed hypothesis across different tasks.
- To identify underlying processing asymmetries in cognitive tasks.
Main Methods:
- Two experiments analyzed interference patterns using varied stimulus onset asynchrony (SOA).
- Tasks included picture-naming, word-reading, picture-categorizing, and word-categorizing.
- The time course of interference was systematically measured.
Main Results:
- Results contradicted the relative speed hypothesis.
- A processing asymmetry was observed between tasks.
- Inhibition-immune recoding was noted in word reading and picture categorizing.
- Inhibition-susceptible recoding was found in picture naming and word categorizing.
Conclusions:
- The relative speed hypothesis does not fully explain Stroop-like interferences.
- Cognitive tasks exhibit distinct processing characteristics.
- Functional internal processing asymmetries differentiate task performance.
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