School of Psychology, Georgia Institute of Technology, Atlanta, GA 30332-0170, USA.
Neuropsychol Dev Cogn B Aging Neuropsychol Cogn. 2013;20(1):101-24. doi: 10.1080/13825585.2012.691152. Epub 2012 May 29.
In everyday prospective remembering, individuals must often delay the execution of a retrieved intention until they are in the appropriate setting. These so-called 'delay-execute' tasks are particularly troublesome for older adults, who consistently demonstrate impaired performance in this kind of laboratory task. To better understand this effect, we investigated delay-execute prospective memory performance in younger and older adults. Specifically, we examined the strategies individuals used to maintain intentions over a delay period by analyzing response times to the ongoing task, both before and after the cue event. The results suggest that younger and older individuals perform the task similarly by rehearsing or reformulating the intention. Despite performing the task in a similar manner, older adults showed greater impairments in delay-execute prospective remembering.
在日常前瞻性记忆中，个体经常需要延迟执行已检索到的意图，直到他们处于适当的环境中。对于老年人来说，这些所谓的“延迟执行”任务特别麻烦，他们在这种实验室任务中的表现始终较差。为了更好地理解这种影响，我们调查了年轻和老年成年人的延迟执行前瞻性记忆表现。具体来说，我们通过分析提示事件前后正在进行的任务的反应时间，来研究个体在延迟期间维持意图所使用的策略。结果表明，年轻和老年个体通过复述或重新制定意图来相似地执行任务。尽管以相似的方式执行任务，但老年人在延迟执行前瞻性记忆方面表现出更大的障碍。
