Waisman Center, University of Wisconsin-Madison, Madison, USA.
Memory. 2023 Apr;31(4):491-501. doi: 10.1080/09658211.2023.2171435. Epub 2023 Jan 30.
Prior work on bilingual memory has largely focused on working memory and less on autobiographical memory. In the present study, we tested the effect of bilingualism on autobiographical memory and examined whether an effect would be moderated or mediated by working memory. Spanish-English bilingual and English-only monolingual adults completed an autobiographical cued-recall task, as well as a working memory measure. Memories were coded for retrieval speed and propositional idea density. Bilingual status was associated with faster memory retrieval but did not affect propositional idea density. Better working memory was associated with slower memory retrieval but did not affect propositional idea density, nor did working memory moderate or mediate the effect of bilingualism. Together, these results indicate an effect of bilingualism on the speed of autobiographical memory retrieval that does not extend to autobiographical memory content and suggest that the effect of bilingualism is independent of the effect of working memory.
先前关于双语记忆的研究主要集中在工作记忆上，而较少关注自传体记忆。在本研究中，我们测试了双语对自传体记忆的影响，并考察了工作记忆是否对该影响起调节或中介作用。西班牙语-英语双语者和英语单语者成年人完成了自传体提示回忆任务以及工作记忆测试。记忆被编码为检索速度和命题想法密度。双语状态与更快的记忆检索有关，但不会影响命题想法密度。更好的工作记忆与更慢的记忆检索有关，但不会影响命题想法密度，工作记忆也没有调节或中介双语的影响。总的来说，这些结果表明双语对自传体记忆检索速度的影响不会扩展到自传体记忆内容，并且表明双语的影响独立于工作记忆的影响。
