Investigation on impact of sleep deprivation on sustained attention and HRV rhythm across different chronotypes

doi:10.16265/j.cnki.issn1003-3033.2024.10.1242

Abstract

Abstract:

In order to elucidate the impact of varying sleep patterns on cognitive performance, this study leveraged the principle of complementarity among different chronotypes. This approach guided the strategic pairing of personnel for morning, evening, and night shifts, with the goal of enhancing operational safety and efficiency. The research involved a regimen of fixed sleep schedules, subjecting individuals with distinct sleep preferences to 30 hours of sleep deprivation. During this period, participants' HRV and levels of sustained attention were closely monitored. Moreover, the study utilized several established tools to evaluate fatigue in sleep-deprived individuals: the Karolinska Sleepiness Scale (KSS), the Morningness-Eveningness Questionnaire (MEQ), and the Pittsburgh Sleep Quality Index (PSQI). Findings revealed that, throughout the sleep deprivation period, individuals with a preference for evening activities exhibited significantly more pronounced variations in HRV time-domain indicators (RMSSD=38.301±17.056, P<0.001). These variations were characterized by greater fluctuation intensity and amplitude, as well as more evident periodicity. KSS scores across all chronotypes show a general upward trend, with those of intermediate chronotypes displaying the highest correlation with HRV frequency-domain indicators (LF/HF=0.769, P<0.05). Morning-oriented individuals demonstrated higher levels of sustained attention between 11:00 AM and 5:00 PM, with accuracy rate linear regression coefficients ranging from 1.5 to 1.7 (×10^-4). In contrast, individuals with intermediate sleep patterns peaked in attention from 7:00 AM to 12:00 PM, while evening-oriented participants exhibited significantly different patterns compared to the other two groups.

Key words: chronotype, sleep deprivation, sustained attention(SUA), heart rate variability (HRV), circadian rhythm

CLC Number:

X949

LI Jingqiang, ZHANG Xuemeng, ZHANG Huanxi, WANG Qingfu. Investigation on impact of sleep deprivation on sustained attention and HRV rhythm across different chronotypes[J]. China Safety Science Journal, 2024, 34(10): 238-246.

Figures/Tables 9

Fig.1

Fig.2

Table 1

Statistical analysis of HRV for three chronotypes

HRV		夜晚型( $x -$ ±s)	中间型( $x -$ ±s)	早晨型( $x -$ ±s)	克鲁斯卡尔-沃利斯检验	渐进显著性
RMSSD /ms		38.301±17.056^***	43.018±24.669^***	50.472±19.957^***	3.046	0.218
LF/HF	FFT范围	3.286±1.913^***	2.939±1.527^***	1.943±0.901^***	5.540	0.063
LF/HF	AR范围	12.388±10.465^***	9.763±17.250^***	3.788±2.599^***	6.900	0.032
ApEn		1.425±0.104^***	1.441±0.092^***	1.486±0.074^***	3.516	0.172

Table 1

Fig.3

Table 2

Statistical analysis of KSS score for three chronotypes

睡眠类型	主观嗜睡自评	$x -$ ±s	弗里德曼检验	线性回归系数
夜晚型	KSS	4.77±4.25	126.834^*	0.727^*
中间型	KSS	5.13±4.83	338.972^*	0.887^*
早晨型	KSS	4.77±4.23	286.265^*	0.820^*

Table 2

Fig.4

Fig.5

Table 3

Table 4

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睡眠类型	主观嗜睡自评	CCA
		与RMSSD		与LF/HF		与ApEn
		交叉相关性	Δφ/h	交叉相关性	Δφ/h	交叉相关性	Δφ/h
夜晚型	KSS	0.459^*	0	0.312	2	-0.640^*	2
中间型	KSS	0.960^*	0	0.769^*	1	-0.960^*	0
早晨型	KSS	0.669^*	0	0.736^*	-1	-0.894^*	1

睡眠类型	SUA-TTS (绝对值)	CCA
		与RMSSD		与LF/HF		与ApEn		与KSS
		交叉相关性	Δφ/h	交叉相关性	Δφ/h	交叉相关性	Δφ/h	交叉相关性	Δφ/h
夜晚型	反应时线性回归	0.424^*	-2	0.450^*	0	-0.413^*	0	0.847^*	-2
夜晚型	正确率线性回归	-0.278	3	-0.464^*	0	0.389	3	-0.701^*	-1
睡眠类型	SUA-TTS (绝对值)	交叉相关分析
		与RMSSD		与LF/HF		与ApEn		与KSS
		交叉相关性	Δφ/h	交叉相关性	Δφ/h	交叉相关性	Δφ/h	交叉相关性	Δφ/h
中间型	反应时线性回归	0.688^*	-3	0.565^*	-3	-0.783^*	-3	0.668^*	-3
中间型	正确率线性回归	-0.727^*	-3	-0.758^*	-3	0.875^*	-3	-0.782^*	-3
早晨型	反应时线性回归	0.352	2	0.235	-1	-0.440^*	3	0.543^*	2
早晨型	正确率线性回归	0.778^*	-1	0.741^*	-3	-0.915^*	0	0.892^*	-1