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Joint Influence of Visual and Auditory Words in the Stroop Task
Wendy S Francis1, Colin M MacLeod2, Randolph S Taylor3
1Department of Psychology, University of Texas at El Paso, 500 W. University Ave, El Paso, TX, 79968, USA. wfrancis@utep.edu.
Attention, Perception & Psychophysics
|October 16, 2016
Summary
Multiple stimuli, like visual and auditory words, contribute independently to Stroop interference when meanings differ. Interference is strongest when word and color stimuli are integrated.
Area of Science:
- Cognitive psychology
- Experimental psychology
Background:
- The Stroop color-word task is a classic measure of selective attention and cognitive control.
- Understanding how multiple, potentially conflicting, stimuli influence interference is crucial for cognitive models.
Purpose of the Study:
- To investigate the independent and interactive effects of visual and auditory word stimuli on Stroop interference.
- To differentiate between joint influence and capture accounts of interference.
Main Methods:
- Four experiments using the Stroop color-word paradigm were conducted.
- Stimuli involved integrated and non-integrated visual and auditory word distracters presented alongside color patches.
- Interference effects were measured by response times and accuracy.
Main Results:
- Integrated word and color stimuli produced strong interference.
- Visual and auditory words made independent contributions to interference when meanings differed.
- Interference was substantially enhanced when visual distracters were integrated with the color.
Conclusions:
- Results support a joint influence account, where multiple stimuli combine their effects.
- Interference is modulated by the integration of stimulus features, particularly visual distracters with color.
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