Selective Attention and Inhibitory Processing in Older Adults: The Impact of Dietary Creatine

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2023-02-09 DOI:10.1007/s12126-023-09524-x

Marco Machado, Edimar F Oliveira, Ewald Neumann

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Abstract

Aims: The purpose was to examine the relationship between dietary creatine intake obtained in food and selective attention and inhibitory control processes in older adults. Methods: Forty-five (n = 11 males; n = 34 females) participants over 60 years of age volunteered. Participants completed a 5-day dietary recall survey to estimate creatine intake and a cognitive assessment which included an adaptation of the Eriksen flanker task and a mini-mental state examination (MMSE). Cohorts for two groups were derived based on higher (HCr) versus lower (LCr) median creatine intake. To compare the groups, an unpaired Mann-Whitney U test was performed. In addition, Spearman’s correlation analysis was used to test a potential association between the daily amount of creatine with selective attention and inhibitory processing task results. Results: There were significant differences between the groups in the flanker task. In the incongruent condition, HCr responded on average about 646 ms faster than LCr (p = .005). HCr also responded about 25% more accurately than LCr in the incongruent condition (p < .001). Response time to incongruent stimuli (Spearman’s -0.424) and per cent correct (Spearman’s rho 0.565) showed moderate correlations with daily creatine intake. Conclusions: Creatine intake from food is positively associated with selective attention and inhibitory processing in older adults.

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老年人的选择性注意和抑制加工：饮食肌酸的影响

目的：研究从食物中获取的肌酸摄入量与老年人选择性注意和抑制控制过程之间的关系。方法：对 45 名老年人（男性 11 人；女性 34 人）进行研究：45名（男=11；女=34）60岁以上的参与者自愿参加。参与者完成了一项为期 5 天的饮食回忆调查，以估算肌酸摄入量，并完成了一项认知评估，其中包括埃里克森侧手任务的改编和小型精神状态检查（MMSE）。根据肌酸摄入量中位数较高（HCr）和较低（LCr）得出了两个组别。为了对两组进行比较，采用了非配对曼-惠特尼 U 检验。此外，还使用斯皮尔曼相关分析来检验每日肌酸摄入量与选择性注意和抑制性加工任务结果之间的潜在联系。结果显示在侧翼任务中，两组之间存在明显差异。在不协调条件下，HCr 的平均反应速度比 LCr 快约 646 毫秒（p = .005）。在不协调条件下，HCr 的反应准确率也比 LCr 高出约 25% (p <.001)。对不协调刺激的反应时间（Spearman's -0.424）和正确率（Spearman's rho 0.565）与每日肌酸摄入量呈中度相关。结论从食物中摄入肌酸与老年人的选择性注意和抑制性加工呈正相关。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.