抑郁个体在工作记忆中操纵信息和更新信息的实验研究

发布时间：2018-06-14 18:19

本文选题：抑郁个体 + 工作记忆　；参考：《江西师范大学》2014年硕士论文

【摘要】：目的：（1）探讨抑郁个体在工作记忆中的信息操纵能力，以及该操纵能力与抑郁程度和冗思水平之间的关系。（2）探讨抑郁个体在工作记忆中的信息更新能力，以及该更新能力与抑郁程度和冗思水平之间的关系。方法：采用流调中心抑郁量表（CES－D）和Beck抑郁自评量表（BDI）筛选出36名抑郁情绪组被试和40名正常组被试。本研究包含两个实验，均选用情绪图片作为实验材料。实验一为工作记忆的信息操纵能力实验，，通过分析两组被试的反应时和正确率来测查抑郁个体在工作记忆中操纵信息的能力；实验二为工作记忆的信息更新能力实验，通过分析两组被试的反应时和正确率来测查抑郁个体在工作记忆中更新信息的能力。结果：（1）在工作记忆中进行信息操纵时，抑郁情绪组和正常组的反应时存在显著差异，抑郁情绪组在正性、中性、负性效价下的反应时都长于正常组。（2）在工作记忆中进行信息操纵时，正性效价图片、中性效价图片、负性效价图片的反应时存在显著差异，负性效价图片的反应时要显著长于正性效价图片和中性效价图片的反应时。（3）在工作记忆中进行信息操纵时，正向线索提示和反向线索提示的反应时存在显著差异，反向线索提示的反应时要显著长于正向线索提示的反应时。（4）抑郁个体的抑郁程度对其在工作记忆的信息操纵能力有显著预测作用。（5）在工作记忆中进行信息更新时，抑郁情绪组和正常组的反应时存在显著差异，抑郁情绪组在正性效价图片和负性效价图片的反应时都长于正常组的反应时。（6）在工作记忆中进行信息更新时，正性效价图片和负性效价图片的反应时存在显著差异，在负性效价图片下的反应时要显著长于正性效价图片下的反应时。（7）在工作记忆中进行信息更新时，有关条件、无关条件、新的正性图片、新的负性图片之间的反应时存在显著差异，在无关条件下的反应时显著性长于其他三种条件的反应时。（8）抑郁个体的抑郁程度对其在工作记忆的信息更新能力有显著预测作用。结论：（1）抑郁个体在工作记忆中进行信息操纵时存在困难，而且抑郁个体在工作记忆操纵信息的困难程度与其抑郁程度有关。（2）抑郁个体在更新工作记忆内容时会受无关负性材料的干扰，而且不断增加的无关负性材料干扰与其抑郁程度有关。
[Abstract]:Objective: to explore the information manipulation ability of depressed individuals in working memory, and the relationship between this manipulation ability and the degree of depression and the level of redundancy. And the relationship between the renewal ability and the degree of depression and redundancy. Methods: 36 subjects in depression group and 40 normal subjects were selected by CES-D and Beck depression self-rating scale (BDI). This study consists of two experiments, both of which are based on emotional pictures. Experiment one is the information manipulation ability experiment of working memory, the ability of manipulating information in working memory is measured by analyzing the reaction time and correct rate of two groups of subjects, the second experiment is the ability of updating information of working memory. The ability of depressive individuals to update information in working memory was measured by analyzing the reaction time and correct rate of the two groups. Results when manipulating information in working memory, there was significant difference in response time between depression group and normal group. The reaction time under negative titer was longer than that in normal group. (2) there were significant differences in response time between positive titer picture, neutral titer picture and negative titer picture when manipulating information in working memory. The response time of negative titer picture was significantly longer than that of positive titer picture and neutral titer picture. The response time of reverse cues was significantly longer than that of positive cues. (4) the degree of depression in depressed individuals had a significant predictive effect on their ability to manipulate information in working memory. When updating information in memory, There was significant difference in response time between depression group and normal group. The response time of positive titer picture and negative titer picture in depression group was longer than that in normal group. There were significant differences between the response time of positive titer picture and negative titer picture. The reaction time under negative titer picture was significantly longer than that under positive titer picture. There were significant differences in reaction time between new positive pictures, new negative images and unrelated conditions. The response time in unrelated condition was significantly longer than that in the other three conditions. (8) the degree of depression in depressed individuals had a significant predictive effect on their ability to update information in working memory. Conclusion 1) depressed individuals have difficulties in manipulating information in their working memory. Moreover, the degree of difficulty in manipulating information in working memory is related to the degree of depression. And the increasing interference with unrelated negative materials was associated with their degree of depression.
【学位授予单位】：江西师范大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：B842.3

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