The arousal level of consciousness required for working memory performance: An anaesthesia study

Author:

Osaka Mariko1ORCID,Minamoto Takehiro1,Ikeda Takashi1,Nakae Aya2,Hagihira Satoshi2,Ito Hiroshi2,Fujino Yuji2,Mashimo Takashi2

Affiliation:

1. Graduate School of Human Sciences Osaka University Suita, Osaka Japan

2. Department of Anesthesiology and Intensive Care Osaka University Graduate School of Medicine Suita, Osaka Japan

Abstract

AbstractRegarding the stage of arousal level required for working memory to function properly, limited studies have been conducted on changes in working memory performance when the arousal level of consciousness decreases. This study aimed to experimentally clarify the stages of consciousness necessary for optimal working memory function. In this experiment, the sedation levels were changed step‐by‐step using anaesthesia, and the performance accuracy during the execution of working memory was assessed using a dual‐task paradigm. Participants were required to categorize and remember words in a specific target category. Categorization performance was measured across four different sedative phases: before anaesthesia (baseline), and deep, moderate and light stages of sedation. Short‐delay recognition tasks were performed under these four sedative stages, followed by long‐delay recognition tasks after participants recovered from sedation. The results of the short‐delay recognition task showed that the performance was lowest at the deep stage. The performance of the moderate stage was lower than the baseline. In the long‐delay recognition task, the performance under moderate sedation was lower than that under baseline and light sedation. In addition, the performance under light sedation was lower than that under baseline. These results suggest that task performance becomes difficult under half sedation and that transferring information to long‐term memory is difficult even under one‐quarter sedation.

Publisher

Wiley

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3