Leshikar Eric D, Dulas Michael R, Duarte Audrey
a Department of Psychology , University of Illinois at Chicago , Chicago , IL , USA.
Neuropsychol Dev Cogn B Aging Neuropsychol Cogn. 2015;22(4):388-412. doi: 10.1080/13825585.2014.957150. Epub 2014 Sep 29.
Processing information in relation to the self enhances subsequent item recognition in both young and older adults and further enhances recollection at least in the young. Because older adults experience recollection memory deficits, it is unknown whether self-referencing improves recollection in older adults. We examined recollection benefits from self-referential encoding in older and younger adults and further examined the quality and quantity of episodic details facilitated by self-referencing. We further investigated the influence of valence on recollection, given prior findings of age group differences in emotional memory (i.e., "positivity effects"). Across the two experiments, young and older adults processed positive and negative adjectives either for self-relevance or for semantic meaning. We found that self-referencing, relative to semantic encoding, increased recollection memory in both age groups. In Experiment 1, both groups remembered proportionally more negative than positive items when adjectives were processed semantically; however, when adjectives were processed self-referentially, both groups exhibited evidence of better recollection for the positive items, inconsistent with a positivity effect in aging. In Experiment 2, both groups reported more episodic details associated with recollected items, as measured by a memory characteristic questionnaire, for the self-reference relative to the semantic condition. Overall, these data suggest that self-referencing leads to detail-rich memory representations reflected in higher rates of recollection across age.
处理与自我相关的信息会增强年轻人和老年人随后对项目的识别能力,并且至少在年轻人中会进一步增强回忆能力。由于老年人存在回忆记忆缺陷,尚不清楚自我参照是否能改善老年人的回忆能力。我们研究了老年人和年轻人自我参照编码带来的回忆益处,并进一步研究了自我参照所促进的情景细节的质量和数量。鉴于先前关于情绪记忆中年龄组差异(即“积极效应”)的研究结果,我们还进一步研究了效价对回忆的影响。在这两个实验中,年轻人和老年人对积极和消极形容词进行自我相关性或语义意义的加工。我们发现,相对于语义编码,自我参照在两个年龄组中均增加了回忆记忆。在实验1中,当对形容词进行语义加工时,两组记住的消极项目比例均高于积极项目;然而,当对形容词进行自我参照加工时,两组均表现出对积极项目回忆更好的证据,这与衰老过程中的积极效应不一致。在实验2中,通过记忆特征问卷测量,相对于语义条件,两组在自我参照条件下报告了更多与回忆项目相关的情景细节。总体而言,这些数据表明,自我参照会导致细节丰富的记忆表征,并反映在各年龄段较高的回忆率上。