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Stimulus-response correspondence effect as a function of temporal overlap between relevant and irrelevant information
Dong-Yuan Debbie Wang1, F Dan Richard1, Brittany Ray1
1a Department of Psychology , University of North Florida , Jacksonville , FL , USA.
Quarterly Journal of Experimental Psychology (2006)
|November 12, 2015
Summary
The stimulus-response correspondence (SRC) effect is influenced by temporal overlap. Performance benefits vary quadratically with the timing between relevant and irrelevant stimulus processing.
Area of Science:
- Cognitive Psychology
- Human Performance Research
Background:
- The stimulus-response correspondence (SRC) effect describes performance benefits when stimulus and response share features, even irrelevant ones.
- Prior research links the SRC effect to the temporal dynamics of stimulus information processing.
Purpose of the Study:
- To investigate how temporal overlap between relevant and irrelevant stimulus processing affects the SRC effect.
- To determine the functional relationship between temporal overlap and SRC effect size.
Main Methods:
- An experiment manipulated the onset asynchrony between an irrelevant auditory stimulus (tone) and a relevant visual stimulus (colored rectangle).
- Participants performed a task where stimulus-response correspondence was varied.
Main Results:
- The size of the SRC effect exhibited a quadratic relationship with the temporal overlap between the relevant and irrelevant stimuli.
- This quadratic function extends previous findings of linear relationships with reaction time.
Conclusions:
- Temporal overlap between processing relevant and irrelevant stimuli significantly modulates the SRC effect.
- The SRC effect's dependence on temporal dynamics is characterized by a quadratic function, offering a more nuanced understanding of its mechanisms.
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