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Alternative TitleEffects of Emotion on Item Memory and Source Memory
Thesis Advisor傅小兰
Degree Grantor中国科学院研究生院
Place of Conferral北京
Degree Discipline心理学
Keyword情绪 项目记忆 来源记忆 编码阶段 巩固阶段
Other AbstractOver the past several decades the effect of emotion on memory has received increased attention from cognitive psychologists. This study, in which emotion is induced respectively by words and video clips in encoding and consolidation stages, is concerned with the following four questions via eight experiments: 1) Does emotion induced in encoding stage affect item memory and source memory? 2) Does emotion induced in consolidation stage affect item memory and source memory? 3) What is the time course of the effect of emotion induced in encoding stage on item memory and source memory? 4) What is the time course of the effect of emotion induced in consolidation stage on item memory and source memory? The major findings are the following: 1) Emotion induced during encoding is beneficial for free recall but has no effect on recognition. In addition, emotion induced during encoding has a task-dependent effect on source memory, that is, positive emotion enhances source memory when there are more than two sources. 2) Under the specific condition that participants remain in rest after emotion elicitation, emotion induced during consolidation stage contributes to recognition, but not source memory, for females.
However, emotion induced during consolidation stage has no  effect on either recognition or source memory for males. 3) Within a 2-week period, the pattern for effect of emotion induced during encoding on item and source memory remains unchanged. Under all the delay conditions, negative emotion enhances free recall but impairs recognition and has no effect on source memory; there is a trend that positive emotion enhances free recall, but it has no effect on recognition and source memory. 4) Within a one-week period, emotion induced during consolidation stage has a time-dependent effect on item memory and source memory. Under relatively short and long delay conditions, positive emotion tend to be beneficial for the consolidation of item memory; however, under medium delay condition a trend occurs that positive emotion impairs the consolidation of item memory. Under relatively short delay conditions, negative emotion has no effect on the consolidation of source memory; however, with the passage of  time, however, there is a trend that negative emotion impairs the consolidation of source memory. This study has theoretical significance for formulation of a theoretical model  on how emotion affects item memory and source memory. This study also has practical implications for how to induce emotions under educational settings to improve memory consolidation. Additionally, this study suggests that item memory and source memory have different critical time point at which significant decrease occurs, which is an extension to traditional memory theories including Ebbinghaus forgetting curve.
Subject Area基础心理学
Document Type学位论文
Recommended Citation
GB/T 7714
汪波. 情绪对项目记忆和来源记忆的影响[D]. 北京. 中国科学院研究生院,2010.
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