Polden Megan, Crawford Trevor J
Psychology Department, Centre for Ageing Research, Lancaster University, Bailrigg, Lancaster LA1 4YF, UK.
Brain Sci. 2022 Sep 27;12(10):1299. doi: 10.3390/brainsci12101299.
It has been reported that performing bilateral eye movements for a short period can lead to an enhancement of memory retrieval and recall (termed the "saccade induced retrieval effect (SIRE)"). The source of this effect has been debated within the literature and the phenomenon has come under scrutiny as the robustness of the effect has recently been questioned. To date investigations of SIRE have largely been restricted to younger adult populations. Here, across two experiments, we assess the robustness and generalisability of the SIRE specifically in relation to disease and ageing. Experiment 1 employed a between subject's design and presented younger and older participants with 36 words prior to completing one of three eye movement conditions (bilateral, antisaccade or a fixation eye movement). Participants then performed a word recognition task. Experiment 2 assessed the SIRE in individuals diagnosed with Alzheimer's, Mild cognitive impairment and Parkinson's by employing an online within subject's design. Results showed no significant difference between groups in the number of words recognised based on eye movement condition. Neither experiment 1 or 2 replicated the SIRE effect therefore the findings from this study add to the growing number of studies that have failed to replicate the SIRE effect.
据报道，短时间内进行双眼运动可增强记忆提取和回忆（称为“扫视诱导提取效应（SIRE）”）。这种效应的来源在文献中一直存在争议，并且由于该效应的稳健性最近受到质疑，这一现象也受到了审查。迄今为止，对SIRE的研究主要局限于年轻成年人群体。在此，通过两个实验，我们专门针对疾病和衰老评估了SIRE的稳健性和普遍性。实验1采用了被试间设计，在完成三种眼动条件（双眼、反扫视或注视眼动）之一之前，向年轻和年长的参与者呈现36个单词。然后，参与者进行单词识别任务。实验2通过采用在线被试内设计，评估了被诊断患有阿尔茨海默病、轻度认知障碍和帕金森病的个体的SIRE。结果显示，基于眼动条件识别的单词数量在各组之间没有显著差异。实验1和实验2均未重复出SIRE效应，因此本研究的结果增加了越来越多未能重复出SIRE效应的研究数量。
