The effects of processing speed and cognitive load demands on working memory performance in young adults born very preterm.

IF 3 3区心理学 Q2 CLINICAL NEUROLOGY

Clinical Neuropsychologist Pub Date : 2025-07-17 DOI:10.1080/13854046.2025.2533300

Taylor Mills, Leona Pascoe, Megan Spencer-Smith, Rheanna M Mainzer, Thi-Nhu-Ngoc Nguyen, Peter J Anderson

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引用次数: 0

Abstract

Objective: To examine working memory performance in young adults born very preterm (VP) and full-term (FT) in the context of information processing.

Methods: 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.

Results: 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.

Conclusions: 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.

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处理速度和认知负荷需求对早产儿工作记忆表现的影响。

目的：探讨早产儿（VP）和足月新生儿（FT）在信息加工背景下的工作记忆表现。方法：选取118名出生在副总统（平均年龄20.1岁）和48名出生在足月（平均年龄19.9岁）的青年为研究对象，分别完成了n-back （1- back和2-back）任务和跟踪任务，该任务对工作记忆（认知）负荷和信息处理速度进行了系统的控制。结果：在所有任务中，VP组的表现都比FT组差，差异的大小随着认知负荷的增加而增加。与预期相反，随着信息处理速度需求的增加，组间差异的幅度保持相似。结论：我们的研究结果提供了进一步的证据，证明那些出生VP的工作记忆困难会持续到成年。然而，这一人群在工作记忆表现上的组间差异并没有因为个人被提供更多的任务时间而减少或改善。本研究证明，信息处理速度的要求并不会导致工作记忆困难。这些结果为先天VP及其发育的认知表型提供了重要信息。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Clinical Neuropsychologist 医学-临床神经学

CiteScore

8.40

自引率

12.80%

发文量

审稿时长

6-12 weeks

期刊介绍： The Clinical Neuropsychologist (TCN) serves as the premier forum for (1) state-of-the-art clinically-relevant scientific research, (2) in-depth professional discussions of matters germane to evidence-based practice, and (3) clinical case studies in neuropsychology. Of particular interest are papers that can make definitive statements about a given topic (thereby having implications for the standards of clinical practice) and those with the potential to expand today’s clinical frontiers. Research on all age groups, and on both clinical and normal populations, is considered.