Mills Taylor, Pascoe Leona, Spencer-Smith Megan, Mainzer Rheanna M, Nguyen Thi-Nhu-Ngoc, Anderson Peter J
School of Psychological Sciences, Monash University, Melbourne, Australia.
Clinical Sciences, Murdoch Children's Research Institute, Melbourne, Australia.
Clin Neuropsychol. 2025 Jul 17:1-16. doi: 10.1080/13854046.2025.2533300.
To examine working memory performance in young adults born very preterm (VP) and full-term (FT) in the context of information processing.
A cohort of 118 young adults born VP (mean age 20.1 years) and 48 young adults born at term (mean age 19.9 years) completed a n-back task (both 1- and 2-back) and a Keeping Track Task which systematically manipulated working memory (cognitive) load and information processing speed.
Across all tasks the VP group performed worse than the FT group, with the magnitude of differences increasing as cognitive load increased. Contrary to expectations, the magnitude of group differences remained similar as information processing speed demands increased.
Our findings provide further evidence that working memory difficulties in those born VP persist into adulthood. However, the between group difference in working memory performance in this population did not decrease or ameliorate when individuals were provided more time for the task. This study gives evidence that information processing speed demands do not drive the working memory difficulties seen in those born VP. These results provide important information regarding the cognitive phenotype of those born VP and their development.
在信息处理的背景下，研究极早产儿（VP）和足月儿（FT）成年早期的工作记忆表现。
一组118名极早产儿（平均年龄20.1岁）和48名足月儿（平均年龄19.9岁）完成了一个n-back任务（1-back和2-back）以及一个追踪任务，该追踪任务系统地操纵了工作记忆（认知）负荷和信息处理速度。
在所有任务中，极早产儿组的表现均比足月儿组差，随着认知负荷的增加，两组差异的幅度也增大。与预期相反，随着信息处理速度要求的提高，两组差异的幅度保持相似。
我们的研究结果进一步证明，极早产儿的工作记忆困难会持续到成年期。然而，当为个体提供更多时间完成任务时，该人群中工作记忆表现的组间差异并未减少或改善。本研究表明，信息处理速度要求并非导致极早产儿出现工作记忆困难的原因。这些结果为极早产儿的认知表型及其发展提供了重要信息。
Zotero 插件