The Effects Of Emotional Stimulus On Cue Identification Of Event-based Prospective Memory

Emotion and memory relationship has been an important subject of cognitive psychology research. According to the emotion on cognitive activities affect "cognitive resources" and "emotion memory theory," the influence of emotions on memory that there are two aspects, one is the promoting function of emotion on memory, derive a "theory of mood-congruency hypothesis", and one is the emotion on memory side effect, such as "emotional preferred hypothesis theory" and "attentional narrowing theory".Prospectie memory as a type of memories, has become the hot current memory research.Prospective memory(PM), in contrast to retrospective memory, is defined as remembering to carry out an or several intended actions at an appropriate moment or phase in the future. It is so common in our everyday life, e.g. remembering to post a letter when you pass the post office on the way to work. And sometimes the failures of PM would lead to serious results. So the research on PM seems so necessary and important to everybody, and better prospective memory performance would help them to maintain their independent lives and improve their living qualities. Review existing emotional and prospective memory research, quantity is limited,and it has focused on the negative effects of emotion on prospective memory problems, such as anxiety, depression, sadness the influence of emotions on prospectie memory. Because of the different about research background, participants, the material selection of experiment, and the most important task of the experiment technology, make the different conclusion, even conflicting. About the influence of emotions on prospectie memory mechanism,it hasn't discussion. Therefore, we discuss the different emotional valence and arousal of influence on cue identification of prospective memory,it has important realistic significance. We can find out what circumstances the influence of emotional stimulus to promote prospective memory, so as to improve the people's awareness of prospectie memory grades.This study used classical experimental paradigms, using behavioral and ERP measures, discuss the effects of emotional stimulus on cue identification of event-based prospective memory. In experiment l,it discuss neutral condition to neutral cue identification of prospective memory, the purpose is to provide a baseline study. In experiment 2, emotional stimulus as ongoing task appears,discuss the effects of the different emotional valence and arousal of emotional stimulus on cue identifition of prospective memory. In experiment 3, emotional stimulus as prospective memory cues appearing,discuss the awareness of the different emotional valence and arousal cues of prospective memory in simple stimulate processing conditions.The results revealed that:(1) Emotional stimulus as ongoing task appearing, the effects of the different emotional valence and arousal of emotional stimulus on cue identifition of prospective memory, in emotional stimulus processing stage of positive high and positive low, Participants put into more cognitive effort and attention resources regulation, due to the limitation of cognitive resources, the stages of cue identifition of prospective memory get less aware of cognitive resources,damaged prospective memory performance.But in emotional stimulus processing stage of negative high and negative low, Participants put into less cognitive effort and attention resources regulation, the stages of cue identifition of prospective memory get more aware of cognitive resources, improve the prospectie memory performance.(2) Emotional stimulus as prospective memory cues appearing, the awareness of the different emotional valence and arousal cues of prospective memory in simple stimulate processing conditions, Compared with the cue type of positive high and positive low,the cue type of negative high and negative low more easily can be note found. Participants dive into more cognitive resources to monitor. (3) In stage of cue after extraction processing, participants dive into more cognitive resources to monitor about negative emotional stimulus.