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The interaction of curiosity and reward on long-term memory in younger and older adults
bioRxiv - Animal Behavior and Cognition Pub Date : 2021-04-13 , DOI: 10.1101/2020.12.14.422735
Liyana T. Swirsky , Audrey Shulman , Julia Spaniol

Long-term memory is sensitive to both intrinsic and extrinsic motivation, but little is known about the relative influence of these two sources of motivation on memory performance across the adult lifespan. The study examined the effects of extrinsic motivation, manipulated via monetary reward, and curiosity, a form of intrinsic motivation, on long-term memory in healthy younger and older adults. During the incidental encoding phase on Day 1, 60 younger and 53 older participants viewed high- and low-curiosity trivia items as well as unrelated face stimuli. Half of the participants in each age group received financial rewards for correctly guessing trivia answers. On Day 2, participants completed a trivia recall test and an old-new recognition test for the face stimuli. Both curiosity and reward were associated with enhanced trivia recall, but the effects were interactive, such that only low-curiosity items benefitted from monetary reward. Neither curiosity nor reward affected face recognition performance in either age group. These findings indicate that individual and joint effects of intrinsic and extrinsic motivation on long-term memory are relatively preserved in healthy aging, a finding that highlights the viability of motivational strategies for memory enhancement into old age. Identifying conditions under which memory for unrelated information benefits from motivational spillover effects in younger and older adults is a priority for future research.

中文翻译:

好奇心和奖励对年轻人和老年人的长期记忆的相互作用

长期记忆对内在动机和外在动机都敏感,但是关于这两种动机对成年后记忆表现的相对影响知之甚少。这项研究检查了通过金钱奖励操纵的外在动机和好奇心(一种内在动机的形式)对健康的年轻人和老年人的长期记忆的影响。在第1天的偶然编码阶段中,有60位年轻和53位年龄较大的参与者查看了高和低好奇心琐事项目以及无关的面部刺激。每个年龄段的参与者中有一半因正确猜测琐事答案而获得了经济奖励。在第2天,参与者完成了针对面部刺激的琐事回忆测试和新旧识别测试。好奇心和报酬都与琐事的回想度增加有关,但是效果是互动的,因此只有低好奇心的物品才能从金钱奖励中受益。好奇心和奖励都不影响这两个年龄段的人脸识别性能。这些发现表明,内在动机和外在动机对长期记忆的个体和共同作用在健康衰老中相对得以保留,这一发现突显了提高记忆力直至老年的动机策略的可行性。确定在什么条件下年轻人和老年人的动机外溢效应会受益于无关信息的记忆,这是未来研究的重点。这些发现表明,内在动机和外在动机对长期记忆的个体和共同作用在健康衰老中相对得以保留,这一发现突显了提高记忆力直至老年的动机策略的可行性。确定在什么条件下年轻人和老年人的动机外溢效应会受益于无关信息的记忆,这是未来研究的重点。这些发现表明,内在动机和外在动机对长期记忆的个体和共同作用在健康衰老中相对得以保留,这一发现突显了提高记忆力直至老年的动机策略的可行性。确定在什么条件下年轻人和老年人的动机外溢效应会受益于无关信息的记忆,这是未来研究的重点。
更新日期:2021-04-14
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