Study on occurrence of microsleep during psychomotor performance and criteria for its detection

精神运动表现过程中微睡眠的发生及其检测标准研究

• 批准号: 14510098
• 负责人: HIROSHIGE Yoshiharu
• 金额: $ 2.05万
• 依托单位: National University Corporation Tottori University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14510098/
• 关键词: Microsleep; dual alternation task of finger tapping; tap-by-tap analysis; slow eye movements; EEG power spectra; arousal level; 運動調節; 覚醒維持; 脳波スペクトル; 最大エントロピー法; tap運動の制御; 眼球運動; 脳波; 睡眠段階1; tapping運動

Background : Microsleep is usually described as a sudden, short-lasting burst of stage 1 sleep or ultrashort phase of sleep. With all clinical observations, such as automatic syndrome in hypersomniacs, and mood and psychomotor performance in depressed patients, few basic researches have been made and it seems to remain open whether microsleep should be considered as sleep or not.Method : The main aim of this study was to examine the behavioral and physiological features of microsleep during maintenance of wakefulness by psychomotor performance, and to explore the criteria for detection of microsleep. Electroencephalograms(EEGs), electrooculograms(EOGs) and finger tappings were continuously recorded over 40 min in the afternoon in 15 subjects. Subjects were instructed to perform 10-successive tappings with a subjectively estimated interval of 1 sec and a force of about 1 Kg. Ten-successive tappings were supposed to perform alternately on each of right and left hands (Dual Alternation Ta … More sk of Finger Tapping). Awakening tone was presented after no movement of tapping had lasted 70 sec. EEG power spectra were estimated by using maximum entropy method. The method, based on the application of a moving linear regression analysis, was applied to automatic detection and measurement of slow eye movements and tappings. Tap-by-tap analyses were made on EEG,EOG and tapping data.Results : A specific state to microsleep was present, behaviorally characterized as the repeated occurrence of mistakes, including lowered force, delayed interval and lapse, and corrections of finger tappings. Duration of microsleep was found to range from 2 to 7 sec on the basis of analysis of inter tap interval and alternation gaps between hands. Physiologically significant changes were seen during a few seconds before lowered-force tappings : disappearance of dominant frequency of alpha band, decreased EEG power ratios of alpha/theta and alpha/beta bands, and appearance of slow eye movements. These changes occurred even in normal train of tapping as well as in interrupted one.Conclusion : The following features might be help with detection of microsleep : 1)Finger tapping with force decreased by half, 2)Alpha /theta power ratio with a value of 1 (central EEG) and a value of 4 (occipital EEG), 3)One or more appearance of slow eye movements. Less

微睡眠通常被描述为突然的，持续时间短的第1阶段睡眠或超短睡眠阶段的爆发。所有的临床观察，如自动综合征在失眠症，情绪和精神的表现，抑郁症患者，很少有基础研究已经取得，它似乎仍然开放是否微睡眠应被视为睡眠或没有。方法：本研究的主要目的是通过心理学表现来研究微睡眠在维持清醒过程中的行为和生理特征，并探讨微睡眠的检测标准。对15名受试者下午40分钟内连续记录脑电图（EEG）、眼电图（EOG）和手指活动。受试者被指示进行10次连续的振动，主观估计的间隔为1秒，力约为1 Kg。假设在右手和左手中的每一个上交替地执行十次连续的握手（双交替Ta ...更多信息 手指敲击的sk）。持续70 s无敲击动作后出现唤醒音。采用最大熵方法估计脑电功率谱。该方法基于移动线性回归分析的应用，应用于自动检测和测量的慢眼动和闪烁。结果：微睡眠存在一种特殊的状态，其行为特征是反复出现错误，包括降低力度、延迟间隔和失误，以及纠正手指动作。根据叩击间隔和双手交替间隙的分析，发现微睡眠的持续时间为2 ~ 7秒。在降低力刺激前几秒钟内观察到生理学显著变化：α频段的主频消失，α/θ和α/β频段的EEG功率比降低，以及出现缓慢的眼球运动。结论：1）手指用力叩击减少一半，2）α/θ功率比为1（中枢EEG）和4（枕叶EEG），3）出现一次或多次慢眼动，这些特征可能有助于微睡眠的检测。少

项目成果

Revised method of automatic measurement of eye movements in sleep.

睡眠时眼球运动自动测量的修订方法。

• 发表时间: 2002
• 期刊: Japanese Journal of Physiological Psychology and Psychophysiology 20-2
• 作者: 広重 佳治;広重 佳治;広重 佳治;Hiroshige Yoshiharu;Hiroshige Yoshiharu;Hiroshige Yoshiharu;広重佳治;広重佳治;広重佳治;広重 佳治;広重 佳治;Hiroshige Yoshiharu;Hiroshige Yoshiharu
• 通讯作者: Hiroshige Yoshiharu

Behavioral maintenance of wakefulness and microsleep during hypnagogic state.

入睡状态期间清醒和微睡眠的行为维持。

• 发表时间: 2004
• 期刊: The Japanese Psychological Association 67th Annual Meeting Presentation Abstracts
• 作者: 広重 佳治;広重 佳治;広重 佳治;Hiroshige Yoshiharu;Hiroshige Yoshiharu
• 通讯作者: Hiroshige Yoshiharu

行動的覚醒維持下での脳波スペクトルによるmicrosleepの推定

使用脑电图谱估计微睡眠，同时保持行为警觉性

• 发表时间: 2004
• 期刊: 生理心理学と精神生理学 22
• 作者: 広重 佳治;広重 佳治;広重 佳治
• 通讯作者: 広重 佳治

Automatic measurement of eye movements in hypnagogic state and REM sleep.

自动测量入睡状态和快速眼动睡眠中的眼球运动。

• 发表时间: 2002
• 期刊: Tottori University Journal of Faculty of Education and Regional Sciences 4-1
• 作者: 広重 佳治;広重 佳治;広重 佳治;Hiroshige Yoshiharu;Hiroshige Yoshiharu;Hiroshige Yoshiharu;広重佳治;広重佳治;広重佳治;広重 佳治;広重 佳治;Hiroshige Yoshiharu
• 通讯作者: Hiroshige Yoshiharu

入眠状態における行動的覚醒維持とマイクロスリープ

入睡期间清醒和微睡眠的行为维持

• 发表时间: 2004
• 期刊: 日本心理学会大68回大会発表論文集
• 作者: 広重 佳治;広重 佳治
• 通讯作者: 広重 佳治