Dritschel Barbara, Beltsos Stamatis, McClintock Shawn M
a School of Psychology and Neuroscience , University of St Andrews , UK.
Memory. 2014;22(8):881-9. doi: 10.1080/09658211.2013.839710. Epub 2013 Nov 12.
There is limited research regarding how executive processes contribute to key cognitive deficits in depression, particularly impoverished retrieval of autobiographical memory. This study tested a novel version of the Autobiographical Memory Test (AMT), the "Alternating Instructions" AMT (AMT-AI), to determine how participants could flexibly retrieve specific and categoric autobiographical memories. The AMT-AI consisted of a standard AMT (AMT-S), a categoric version of the AMT (AMT-R), and a section of alternating instructions (AI) in which the rules required the participant to alternate between retrieval of categoric and specific memories. A total of 49 university students completed the AMT-AI, and self-report measures of depressive symptomatology and ruminative thinking. Results showed that the mean proportion of specific memories recalled on the AMT-AI was significantly lower than on the AMT-S. Also, reduced memory specificity on the AMT-AI, but not the AMT-S, was significantly negatively correlated with increased scores on measures of depressive symptomatology and ruminative thinking. Collectively the data suggested that the AMT-AI, relative to the traditional AMT, may be more sensitive to memory specificity in non-clinical populations. Future research is warranted to further determine the psychometric properties and utility of the AMT-AI.
关于执行过程如何导致抑郁症的关键认知缺陷,尤其是自传体记忆提取不足,相关研究有限。本研究测试了自传体记忆测试(AMT)的一个新版本,即“交替指令”AMT(AMT-AI),以确定参与者如何灵活提取特定和分类的自传体记忆。AMT-AI包括一个标准AMT(AMT-S)、一个分类版的AMT(AMT-R),以及一个交替指令部分(AI),其中规则要求参与者在分类记忆和特定记忆的提取之间交替。共有49名大学生完成了AMT-AI,以及抑郁症状和反刍思维的自我报告测量。结果显示,在AMT-AI上回忆的特定记忆的平均比例显著低于在AMT-S上。此外,AMT-AI上记忆特异性的降低(而非AMT-S上)与抑郁症状和反刍思维测量得分的增加显著负相关。总体而言,数据表明,相对于传统的AMT,AMT-AI可能对非临床人群的记忆特异性更敏感。有必要进行进一步研究,以进一步确定AMT-AI的心理测量特性和效用。