Identification differences among people under context of complex images

Differences of depressed and normal peoples´ behavior in identification tasks is explored for a long time in cognitive science experiments. Words, pictures and emotional faces were introduced into psychological experiments in latest studies. However, usually the priming effect of images is used frequently, which is not according with people´s common sense. In this paper, competing effect is introduced. We selected two kinds of background scenes based on image voting results: negative scenes and positive scenes for testing. Correspondingly, positive faces and negative faces were also utilized as testing images. Three experiments were designed considering both the initiation and the distraction effect of background, especially the third experiment considering both priming effect and competing effect simultaneously. According to data analysis results, there exists more significant discrepancy considering competing effect in identification speeds and identification discriminations between depressed people and normal people.