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Zhang X, Feng S, Yang X, Peng Y, Du M, Zhang R, Sima J, Zou F, Wu X, Wang Y, Gao X, Luo Y, Zhang M. Neuroelectrophysiological alteration associated with cognitive flexibility after 24 h sleep deprivation in adolescents. Conscious Cogn 2024; 124:103734. [PMID: 39096822 DOI: 10.1016/j.concog.2024.103734] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Revised: 07/28/2024] [Accepted: 07/30/2024] [Indexed: 08/05/2024]
Abstract
The cognitive neural mechanisms by which sleep deprivation affects cognitive flexibility are poorly understood. Therefore, the study investigated the neuroelectrophysiological basis of the effect of 24 h sleep deprivation on cognitive flexibility in adolescents. 72 participants (36 females, mean age ± SD=20.46 ± 2.385 years old) participated in the study and were randomly assigned to the sleep deprivation group and control group. They were instructed to complete a task switch paradigm, during which participants' behavioral and electroencephalographic data were recorded. Behaviorally, there were significant between-group differences in accuracy. The results of event-related potential showed that the P2, N2 and P3 components had significant group effects or interaction effects. At the time-frequency level, there were statistically significant differences between the delta and theta bands. These results suggested that 24 h sleep deprivation affected problem-solving effectiveness rather than efficiency, mainly because it systematically impaired cognitive processing associated with cognitive flexibility.
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Affiliation(s)
- Xirui Zhang
- The First Affiliated Hospital of Xinxiang Medical University, Henan 453003, China
| | - Shuqing Feng
- Department of Psychology, Xinxiang Medical University, Henan 453003, China; Mental Illness and Cognitive Neuroscience Key Laboratory of Xinxiang (Xinxiang Medical University), Xinxiang 453003, Henan Province, China
| | - Xiaochen Yang
- The First Affiliated Hospital of Xinxiang Medical University, Henan 453003, China
| | - Yunwen Peng
- Department of Psychology, Xinxiang Medical University, Henan 453003, China; Mental Illness and Cognitive Neuroscience Key Laboratory of Xinxiang (Xinxiang Medical University), Xinxiang 453003, Henan Province, China
| | - Mei Du
- Department of Psychology, Xinxiang Medical University, Henan 453003, China; Mental Illness and Cognitive Neuroscience Key Laboratory of Xinxiang (Xinxiang Medical University), Xinxiang 453003, Henan Province, China
| | - Rui Zhang
- Department of Psychology, Xinxiang Medical University, Henan 453003, China; Mental Illness and Cognitive Neuroscience Key Laboratory of Xinxiang (Xinxiang Medical University), Xinxiang 453003, Henan Province, China
| | - Jiashan Sima
- Department of Psychology, Xinxiang Medical University, Henan 453003, China; Mental Illness and Cognitive Neuroscience Key Laboratory of Xinxiang (Xinxiang Medical University), Xinxiang 453003, Henan Province, China
| | - Feng Zou
- Department of Psychology, Xinxiang Medical University, Henan 453003, China; Mental Illness and Cognitive Neuroscience Key Laboratory of Xinxiang (Xinxiang Medical University), Xinxiang 453003, Henan Province, China
| | - Xin Wu
- Department of Psychology, Xinxiang Medical University, Henan 453003, China; Mental Illness and Cognitive Neuroscience Key Laboratory of Xinxiang (Xinxiang Medical University), Xinxiang 453003, Henan Province, China
| | - Yufeng Wang
- Department of Psychology, Xinxiang Medical University, Henan 453003, China; Mental Illness and Cognitive Neuroscience Key Laboratory of Xinxiang (Xinxiang Medical University), Xinxiang 453003, Henan Province, China
| | - Xiaomeng Gao
- Department of Psychology, Xinxiang Medical University, Henan 453003, China; Mental Illness and Cognitive Neuroscience Key Laboratory of Xinxiang (Xinxiang Medical University), Xinxiang 453003, Henan Province, China.
| | - Yanyan Luo
- School of Nursing, Xinxiang Medical University, Henan 453003, China.
| | - Meng Zhang
- Department of Psychology, Xinxiang Medical University, Henan 453003, China; Mental Illness and Cognitive Neuroscience Key Laboratory of Xinxiang (Xinxiang Medical University), Xinxiang 453003, Henan Province, China.
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Kurtovic A, Hnojcik A. Early bird catches the worm? The relation between school schedule, sleep quality, and depression in Croatian adolescents. PSYCHOLOGY IN THE SCHOOLS 2021. [DOI: 10.1002/pits.22597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ana Kurtovic
- Department of Psychology Faculty of Humanities and Social Sciences in Osijek Osijek Croatia
| | - Adrijana Hnojcik
- Department of Psychology Faculty of Humanities and Social Sciences in Osijek Osijek Croatia
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Ljubičić A, Varnai VM, Petrinec B, Macan J. Response to thermal and physical strain during flashover training in Croatian firefighters. APPLIED ERGONOMICS 2014; 45:544-549. [PMID: 23992611 DOI: 10.1016/j.apergo.2013.07.011] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2012] [Revised: 07/14/2013] [Accepted: 07/22/2013] [Indexed: 06/02/2023]
Abstract
Flashover training (FOT) for firefighters is a simulation of the flashover phenomenon under controlled conditions. This study assessed arterial blood pressure (BP) and its response to thermal and physical strain during FOT in 48 professional and 18 volunteer firefighters. A high prevalence of obesity (27%), basal hypertensive (53%) and prehypertensive (33%) BP values was found. FOT induced mild hyperthermia and physical strain (average increase of 1.1 °C in tympanic temperature and 61% of the maximal heart beat predicted for age). Compared to professional firefighters, FOT in the volunteers induced a higher increase in pulse (P = 0.050) and tympanic temperature (P = 0.025). Systolic BP did not vary significantly, and diastolic BP slightly decreased in both groups. Results confirm that FOT induced only physiological cardiovascular responses to thermal and physical strain in firefighters. High prevalence of obesity and elevated BP values indicate the need for better physical fitness and BP control among firefighters.
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Affiliation(s)
- Anita Ljubičić
- Institute for Medical Research and Occupational Health, Environmental and Occupational Medicine Unit, Ksaverska cesta 2, 10001 Zagreb, Croatia.
| | - Veda M Varnai
- Institute for Medical Research and Occupational Health, Environmental and Occupational Medicine Unit, Ksaverska cesta 2, 10001 Zagreb, Croatia
| | - Branko Petrinec
- Institute for Medical Research and Occupational Health, Environmental and Occupational Medicine Unit, Ksaverska cesta 2, 10001 Zagreb, Croatia
| | - Jelena Macan
- Institute for Medical Research and Occupational Health, Environmental and Occupational Medicine Unit, Ksaverska cesta 2, 10001 Zagreb, Croatia
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