The Processing Mechanism Of Emotional Stimu-lus In The Rapid Serial Visual Presentation Para-digm

Face a lot of information, human beings has to filter this information all the time. due to the limited resources of the attention of the human nervous system. While in the selection process, a part of the information can be further processing, while the rest of the information will be ignored, and this phenomenon is called the Attention Blink. Rapid Serial Visual Presentation Paradigm is the classic paradigm to study Attentional Blink. In this paradigm, the series of stimulus contains two target stimuli (in this case referred to as T1and T2) presentation in a particular location of the visual space as a speed of10/sec in the stimulus stream, as well as the other stimulus stream is consid-ered distracter. The second target stimulus (T2) presentation after the first target stim-ulus (T1), there are different time delay conditions between them. And the correct identification of the second target will be reduced, if the time delays between200ms to500ms.Studies have shown that the paradigm of emotional information will produce dif-ferent effects on the choice of the individual goals.(1) When the emotional stimuli as T2, the effect of Attentional Blink will be reduced and showed the Attentional Blink antagonistic effect. Some studies show that such effects.may be caused by valence. other studies suggest that such effects may be caused by arousal.(2) When the emo-tional stimuli as T1, the effect of Attentional Blink will be increased or reduced, and this effect maybe caused by the importance and significance of the special stimulation, the effect of valence and arousal remains to be investigated. Above conclusions need further validation and support. In this study, two experiments to further explore the va-lence strength and arousal strength will have impact on the identification of the target, when the emotional information in different target location in the stimulus stream of rapid serial visual presentation paradigm(T1or T2), and then explore the differences between the processing mechanisms of valence and arousal.Experimental one, emotional expression faces with different valence and arousal strengths the f second target stimulus (T2), neutral emotional faces as the target stimu-lus (T1) in the stimulus stream, the effects of different valence and arousal strength on the capturing intentioned attentional processing mechanisms have been explored. The results show that high arousal emotional stimuli can capture intentioned attention more easily and showed the Attentional Blink antagonistic effect; as well as negative emo-tional stimuli reduce the Attentional Blink effect to the certain extent. But the role played by the arousal over the valence, this may be due to arousal strength can be giv-en priority in processing than the valence strength in the condition that lack of attention resources.Experimental two, emotional expression faces with different valence and arousal strengths the second target stimulus (T1), neutral emotional faces as the target stimulus (T2) in the stimulus stream, and the different attention bias ingredients of the valence and arousal and processing mechanisms have been explored. The research results show that negative emotional stimuli lead. to attention bias more easily and showed the Attentional blink antagonistic effect; high arousal degree emotional stimuli educe the Attentional blink effect to the certain extent. But the role played by the valence over the arousal, this may be due to negative emotions get priority processing by a special processing channel; so the role of arousal priority processing would be weakened.Above all, the effect of emotional valence strength and arousal strength on the processing of target identification in rapid serial visual presentation paradigm, and the differences between processes of emotional information in valence and arousal mecha-nism have been further validated.