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Dual-Task Stroop Paradigm for Detecting Cognitive Deficits in High-Functioning Stroke Patients

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[The asymmetry of interhemispheric interaction in reverse-stroop task].

Ritsuko Nishimura¹

¹Graduate School of Communication Studies, Department of Psychology, Aichi Shukutoku University, Nagakute-cho, Aichi 480-1197, Japan. 06003cpd@asunc.aasa.ac.jp

Shinrigaku Kenkyu : the Japanese Journal of Psychology

|October 5, 2006

Summary

Interference effects in the reverse-Stroop task depend on visual field presentation. Kanji words showed no visual field difference, while kana words showed greater interference in the left visual field, suggesting hemispheric processing influences.

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Area of Science:

Cognitive Psychology
Neuroscience
Visual Perception

Context:

Investigating interhemispheric interaction using the reverse-Stroop task.
Examining how visual stimuli presented to the bilateral visual-field (BVF) affect cognitive processing.
Utilizing color-word and color-patch stimuli to create interference conditions.

Purpose:

To determine the impact of interference on interhemispheric interaction.
To compare the interference effect of kanji and kana color-words across different visual fields.
To explore how hemispheric dominance influences the processing of visual targets.

Summary:

Experiment 1 (kanji) revealed no visual field difference in interference effect.
Experiment 2 (kana) showed a larger interference effect for left visual-field (LVF) presentation compared to the right visual-field (RVF).
Findings suggest that the dominant hemisphere for target processing modulates interference effects.

Impact:

Provides insights into the neural mechanisms underlying visual attention and interference.
Highlights the role of hemispheric specialization in cognitive tasks.
Contributes to understanding how different writing systems (kanji vs. kana) are processed in the brain.