Effect of vocal feedback on Stroop Color-Word interference

Area of Science:

• Cognitive Psychology
• Neuroscience
• Human Factors

Background:

• The Stroop Color-Word task is a standard measure of selective attention and cognitive interference.
• Vocal feedback, the auditory response during task performance, may influence cognitive processes.
• Understanding factors affecting Stroop performance is crucial for cognitive research.

Purpose of the Study:

• To investigate the impact of vocal feedback on performance in the Stroop Color-Word task.
• To determine if reducing vocal feedback affects response speed and accuracy.
• To explore the role of auditory feedback in cognitive interference.

Main Methods:

• 16 male college students participated in the study.
• Participants performed the Stroop Color-Word task under conditions with and without reduced vocal feedback.
• Performance was assessed using two measures: speed (time to complete) and accuracy (number of errors).

Main Results:

• Reduced vocal feedback did not improve the speed of performance on the interference task.
• Accuracy in the interference condition was significantly enhanced by reducing vocal feedback.
• Little change in accuracy was observed under non-interference conditions with reduced vocal feedback.

Conclusions:

• Vocal feedback plays a significant role in modulating cognitive interference during the Stroop task.
• Reduced vocal feedback enhances accuracy by mitigating the mismatch between auditory feedback and cognitive responses.
• The findings support a model where auditory feedback contributes to the experience of interference.