Stroop effect with visual and auditory stimuli : Five tasks show the differences in reaction times when auditory and/or visual linguistic stimuli are presented against an image

Abstract: Stroop effect is the delay in reaction time that is caused by interference. Differences in perception speed of auditory and visual stimuli, as well as the division of selective attention to more than one sources are combined in five different Stroop tasks in this study, involving three stimuli: a picture, a written word and a heard word. Three hypotheses were formed: reaction times will be faster when stimuli agree; reaction times will be slower as tasks become more complex; reaction times will be different when the target stimulus is auditory or visual. Twenty people participated in all five tasks, which involved one or two linguistic stimuli compared against a picture. The first and third hypotheses showed significant results (p<0.001 in both), while the second did not. The results are in accord with previous research, but further research is required in order to better understand the effect of auditory and visual linguistic stimuli on reaction times.