Modeling age differences in effects of pair repetition and proactive interference using a single parameter.
Modeling age differences in effects of pair repetition and proactive interference using a single parameter.
复制标题
使用单个参数对成对重复和主动干扰的影响的年龄差异进行建模。
DOI:
10.1037/pag0000195
复制
发表时间:
2018
影响因子:
3.7
通讯作者:
Overman,AmyA
中科院分区:
文献类型:
--
作者:
Stephens,JosephDW;Overman,AmyA
In this article, we apply the REM model (Shiffrin & Steyvers, 1997) to age differences in associative memory. Using Criss and Shiffrin’s (2005) associative version of REM, we show that in a task with pairs repeated across 2 study lists, older adults’ reduced benefit of pair repetition can be produced by a general reduction in the diagnosticity of information stored in memory. This reduction can be modeled similarly well by reducing the overall distinctiveness of memory features, or by reducing the accuracy of memory encoding. We report a new experiment in which pairs are repeated across 3 study lists and extend the model accordingly. Finally, we extend the model to previously reported data using the same task paradigm, in which the use of a high-association strategy introduced proactive interference effects in young adults but not older adults. Reducing the diagnosticity of information in memory also reduces the proactive interference effect. Taken together, the modeling and empirical results reported here are consistent with the claim that some age differences that appear to be specific to associative information can be produced via general degradation of information stored in memory. The REM model provides a useful framework for examining age differences in memory as well as harmonizing seemingly conflicting prior modeling approaches for the associative deficit.(PsycInfo Database Record (c) 2024 APA, all rights reserved)