Reward-Enhanced Memory in Younger and Older Adults

被引:87
作者
Spaniol, Julia [1 ]
Schain, Cecile [2 ]
Bowen, Holly J. [1 ]
机构
[1] Ryerson Univ, Dept Psychol, Toronto, ON M5B 2K3, Canada
[2] Univ Munster, Dept Psychol, Munster, Germany
来源
JOURNALS OF GERONTOLOGY SERIES B-PSYCHOLOGICAL SCIENCES AND SOCIAL SCIENCES | 2014年 / 69卷 / 05期
基金
加拿大自然科学与工程研究理事会;
关键词
Episodic memory; Incentives; Motivation; Older adults; Reward anticipation; AGE-DIFFERENCES; INFORMATION; RECOLLECTION; DISSOCIATION; ANTICIPATION; FAMILIARITY; ACTIVATION; MOTIVATION; EXPERIENCE; ATTENTION;
D O I
10.1093/geronb/gbt044
中图分类号
R592 [老年病学]; C [社会科学总论];
学科分类号
03 ; 0303 ; 100203 ;
摘要
Objectives. We investigated how the anticipation of remote monetary reward modulates intentional episodic memory formation in younger and older adults. On the basis of prior findings of preserved reward-cognition interactions in aging, we predicted that reward anticipation would be associated with enhanced memory in both younger and older adults. On the basis of previous demonstrations of a time-dependent effect of reward anticipation on memory, we expected the memory enhancement to increase with study-test delay. Method. In Experiment 1, younger and older participants encoded a series of picture stimuli associated with high- or low-reward values. At test (24-hr postencoding), recognition hits resulted in either high or low monetary rewards, whereas false alarms were penalized to discourage guessing. Experiment 2 was similar to Experiment 1, but the study-test delay was manipulated within subjects (immediate vs 24 hr). Results. In Experiment 1, younger and older adults showed enhanced recognition for high-reward pictures compared with low-reward pictures. Experiment 2 replicated this finding and additionally showed that the effect did not extend to immediate recognition. Discussion. The current findings provide support for a time-dependent mechanism of reward-based memory enhancement. They also suggest that aging leaves intact the positive influence of reward anticipation on intentional long-term memory formation.
引用
收藏
页码:730 / 740
页数:11
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