El Haj Mohamad, Janssen Steve M J, Antoine Pascal
Univ. Lille, CNRS, CHU Lille, UMR 9193 - SCALab - Sciences Cognitives et Sciences Affectives, F-59000 Lille, France; CHU de Lille, Unité de Psychogériatrie, Pôle de gérontologie, 59037 Lille, France.
The University of Nottingham-Malaysia Campus, Semenyih, Malaysia.
Brain Cogn. 2017 Oct;117:65-72. doi: 10.1016/j.bandc.2017.06.005. Epub 2017 Jun 16.
Backward and forward telescoping are opposite timing biases. The former refers to misattributing events to earlier dates, whereas the latter refers to misattributing events to later dates. The present study investigated both biases in participants with Alzheimer's Disease (AD) and healthy older adults, matched on age, sex, and education level. Participants were asked to recall the years when five remote and five recent public events had occurred. They were also assessed with a cognitive and clinical battery that included a context memory task on which they had to associate letters and locations. Results showed backward telescoping for recent events and forward telescoping for remote events in AD participants and older adults. Furthermore, poorer context recall was observed in AD participants and older adults displaying backward telescoping than in those displaying forward telescoping. These findings suggest an association between the amount of contextual information recalled and the direction of the timing bias. Backward telescoping can be associated with deficiencies in retrieving context characteristics of events, which have been associated with retrograde amnesia and pathological changes to the hippocampus in AD.
向后和向前的时间压缩是相反的时间偏差。前者指将事件错误地归因于更早的日期，而后者指将事件错误地归因于更晚的日期。本研究调查了患有阿尔茨海默病（AD）的参与者和健康老年人中的这两种偏差，这些参与者在年龄、性别和教育水平上相匹配。参与者被要求回忆五个遥远和五个近期公共事件发生的年份。他们还接受了一系列认知和临床测试，其中包括一个情境记忆任务，在该任务中他们必须将字母和地点联系起来。结果显示，AD参与者和老年人中存在近期事件的向后时间压缩和遥远事件的向前时间压缩。此外，与表现出向前时间压缩的AD参与者和老年人相比，表现出向后时间压缩的参与者情境回忆能力较差。这些发现表明，回忆的情境信息量与时间偏差的方向之间存在关联。向后时间压缩可能与检索事件的情境特征存在缺陷有关，而这与AD中的逆行性遗忘和海马体的病理变化有关。
