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概率非结构化序列内隐学习的年龄差异。

Age differences in implicit learning of probabilistic unstructured sequences.

机构信息

Department of Psychology, Georgetown University, Washington, DC 20057, USA.

出版信息

J Gerontol B Psychol Sci Soc Sci. 2011 Jan;66(1):32-8. doi: 10.1093/geronb/gbq066. Epub 2010 Oct 25.

Abstract

OBJECTIVE

It is unclear whether implicit probabilistic learning, the acquisition of regularities without intent or explicit knowledge, declines with healthy aging.

METHODS

Because age differences in previous work might reflect motor or rule learning deficits, we used the implicit Triplets Learning Task with reduced motor sequencing and non-rule-based associations. Fifteen young and 15 old adults responded only to the last event in a series of discrete 3-event sequences or triplets. A randomly chosen set of triplets occurred with high frequency, so there was no underlying rule to be learned.

RESULTS

Both age groups learned associative regularities, but age differences in favor of the young emerged with practice. Discussion. Age differences may reflect the different neural regions that are involved as training progresses, which differ in the extent to which they are compromised by aging.

摘要

目的

目前尚不清楚,在没有意图或明确知识的情况下获得规律的内隐概率学习是否会随着健康衰老而下降。

方法

由于之前的研究中年龄差异可能反映了运动或规则学习的缺陷,因此我们使用了简化的三序列学习任务,减少了运动序列和非规则关联。15 名年轻成年人和 15 名老年成年人仅对离散的 3 事件序列或三序列中的最后一个事件做出反应。随机选择的一组三序列以高频率出现,因此没有要学习的基本规则。

结果

两个年龄组都学习了联想规律,但随着练习的进行,年轻人的年龄差异更明显。讨论。年龄差异可能反映了随着训练的进展,所涉及的不同神经区域不同,而这些区域在多大程度上受到衰老的影响也不同。

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