Study On Stroop Effect Based On The Brain’s Interhemisphere

Objective: This study designed to investigate different stimulus types and theexperimental paradigm between the graph、word stroop tasks, also, we can study thecharacter of interhemispheric inhibition and interhemispheric enhancement bydifferent stimulus formats, so we can provide the theoretical basis for clinicaldiagnosis and treatments.Methods: The study adopted the tachistoscopic visual half-field technique. A sampleof60normal subjects were selected in the experiment. we use the graph and wordstroop as the stimulus, include four different sets of stimulus types, every stimulushas three different stimulus formats, the baseline, cross and cross+interferencestimulus formats. The stimulus of four experiments were presented in bilateral visualfields.Results: In Experiment1, the main effect of graph and word Stroop was notsignificant between the RT（P=0.728）and ACC（P=0.915）. In Experiment2, the maineffect of graph and word Stroop was significant between the RT（P=0.001）and ACC（P=0.013）. In Experiment3, the main effect of stimulus formats was significant（p=0.000）, the RT of cross+interference stimulus formats was higher than thebaseline,and the baseline was higher than the cross.The main effect of graph and wordStroop was significant only in the baseline stimulus formats at the RT（P=0.025）. InExperiment4, the main effect of graph and word Stroop was not significant betweenthe RT（P=0.941）and ACC（P=0.949）Conclusions: In graph and word stroop tasks, we should adopt different types ofstimulus, such as geometric figure or Chinese characters. In graph and word strooptasks, we should also notice the selection of experimental paradigm.we should adoptbaseline stimulus formats to explore interhemispheric inhibition...