scholarly journals Attention-Dependent Physiological Correlates in Sleep-Deprived Young Healthy Humans

2021 ◽  
Vol 11 (2) ◽  
pp. 22
Author(s):  
Valentina Cesari ◽  
Elena Marinari ◽  
Marco Laurino ◽  
Angelo Gemignani ◽  
Danilo Menicucci
Keyword(s):  
Sleep Deprivation ◽  
Cognitive Functions ◽  
Common Factor ◽  
Head Movements ◽  
Physiological Measures ◽  
Network Efficiency ◽  
Healthy Humans ◽  
Physiological Indices ◽  
Attentional Network ◽  
Attentional Tasks

Cognitive functions could be specifically altered but masked from the unspecific effect of workload, a common factor affecting cognitive functions that modulate peripheral outputs. To identify workload-related and specific, task-dependent components, physiological correlates of cognitive functioning were derived by studying 15 healthy volunteers performing attentional tasks in baseline and post-sleep-deprivation conditions (one week interval). Sleep deprivation was introduced to increase workload. We performed recordings of heart pulse, facial temperature, and head movements during tasks assessing attentional network efficiency (ANT, Attentional Network Task; CCT, Continuous Compensatory Tracker) workload assessments after execution of tasks. Changes in cognitive and physiological indices were studied in both conditions; physiological correlates of cognitive performance were identified by correlating changes from baseline to post-sleep-deprivation condition of task indices with those of physiological measures after correction for between-conditions workload changes. We found that mental and physical demands of workload increased after sleep deprivation. We identified no changes in cognitive and physiological indices across conditions; specific physiological correlates of attentional systems, as indicated by the negative correlation between changes in ANT-alerting and changes in amplitude of head movements and the positive correlation between changes in CCT-speed indexing alertness and changes in facial temperature.

scholarly journals Attention-dependent physiological correlates in sleep deprived healthy humans

2020 ◽  
Author(s):  
Valentina Cesari ◽  
Elena Marinari ◽  
Marco Laurino ◽  
Angelo Gemignani ◽  
Danilo Menicucci
Keyword(s):  
Sleep Deprivation ◽  
Cognitive Functioning ◽  
Common Factor ◽  
Head Movements ◽  
Deprivation Condition ◽  
Cognitive Tasks ◽  
Physiological Measures ◽  
Healthy Humans ◽  
Perceived Workload ◽  
Different Levels

AbstractDistinct cognitive functions are based on specific brain networks, but they are also affected by workload. The workload is a common factor affecting cognitive functioning that, by activating the Central Autonomic Network, modulates heart rate peripheral correlates of cognitive functioning. Based on these premises, we expected that the peripheral patterns associated with different attentional systems would have common (workload-related) and specific (task-dependent) components. To disentangling the components, a profile of peripheral physiological correlates of cognitive functioning was derived by studying healthy volunteers while performing different cognitive tasks during baseline and post-sleep deprivation conditions. Post-sleep deprivation condition was introduced to increase workload during tasks, allowing the investigation of the same participant at different levels of workload in different conditions. We performed, in each condition, physiological recordings of heart pulse, facial temperature and head movements during tasks assessing attentional networks efficiency (ANT - Attentional Network Task; CCT - Continuous Compensatory Tracker). We assessed perceived workload after the execution of these tasks. Physiological correlates of cognitive performance were identified by associating changes of task indices with the corresponding changes in physiological measures from baseline to post-sleep deprivation condition. Correlation analyses were performed after correction for the between-conditions workload changes: indeed, mental and physical demands of perceived workload increased after sleep deprivation. We found that alerting/vigilance has specific physiological correlates as indicated by the negative correlation between changes in ANT-alerting score and changes in amplitude of head movements and the positive one between changes in CCT-visuomotor speed indexing alertness and changes in facial temperature.

Caffeine and Placebo Expectation

2007 ◽  
Vol 21 (2) ◽  
pp. 91-99 ◽  
Author(s):  
Yunfeng Sun ◽  
Yinling Zhang ◽  
Ning He ◽  
Xufeng Liu ◽  
Danmin Miao
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Sleep Deprivation ◽  
Cognitive Performance ◽  
Cognitive Functions ◽  
Cardiovascular Regulation ◽  
Double Blind ◽  
Positive Effects ◽  
Pressure Tests ◽  
Healthy Males

Abstract. Caffeine placebo expectation seems to improve vigilance and cognitive performance. This study investigated the effect of caffeine and placebo expectation on vigilance and cognitive performance during 28 h sleep deprivation. Ten healthy males volunteered to take part in the double-blind, cross-over study, which required participants to complete five treatment periods of 28 h separated by 1-week wash-out intervals. The treatments were no substance (Control); caffeine 200 mg at 00:00 (C200); placebo 200 mg at 00:00 (P200); twice caffeine 200 mg at 00:00 and 04:00 (C200-C200); caffeine 200 mg at 00:00 and placebo 200 mg at 04:00 (C200-P200). Participants were told that all capsules were caffeine and given information about the effects of caffeine to increase expectation. Vigilance was assessed by a three-letter cancellation test, cognitive functions by the continuous addition test and Stroop test, and cardiovascular regulation by heart rate and blood pressure. Tests were performed bihourly from 00:00 to 10:00 of the second day. Results indicated that C200-P200 and C200-C200 were more alert (p < .05) than Control and P200. Their cognitive functions were higher (p < .05) than Control and P200. Also, C200-P200 scored higher than C200 in the letter cancellation task (p < .05). No test showed any significant differences between C200-P200 and C200-C200. The results demonstrated that the combination of caffeine 200 mg and placebo 200 mg expectation exerted prolonged positive effects on vigilance and cognitive performance.

Sleep Deprivation, Cognitive Functions, and Countermeasures

2019 ◽  
pp. 41-56
Author(s):  
Usha Panjwani ◽  
Meetu Wadhwa ◽  
Koushik Ray ◽  
Krishna Kishore
Keyword(s):  
Sleep Deprivation ◽  
Cognitive Functions

scholarly journals Effects of partial sleep deprivation following night shift on cognitive functions of Egyptian anesthesiologists; prospective observational study

2020 ◽  
Vol 36 (1) ◽  
pp. 61-68
Author(s):  
Bassant Mohamed Abdelhamid ◽  
Heba Omar ◽  
Mohammed Mahmoud Hassan ◽  
Sherif Alaa Embaby ◽  
Ashraf Rady ◽  
...  
Keyword(s):  
Observational Study ◽  
Sleep Deprivation ◽  
Cognitive Functions ◽  
Prospective Observational Study ◽  
Night Shift ◽  
Partial Sleep Deprivation

A survey of sleep deprivation patterns and their effects on cognitive functions of residents and interns in Korea

2011 ◽  
Vol 12 (4) ◽  
pp. 390-396 ◽  
Author(s):  
Hee Jin Kim ◽  
Jee Hyun Kim ◽  
Kee-Duk Park ◽  
Kyoung-Gyu Choi ◽  
Hyang Woon Lee
Keyword(s):  
Sleep Deprivation ◽  
Cognitive Functions

scholarly journals Effects of sleep deprivation on cognitive functions

2008 ◽  
Vol 24 (1) ◽  
pp. 45-48 ◽  
Author(s):  
Na Zhang ◽  
Hong-Tao Liu
Keyword(s):  
Sleep Deprivation ◽  
Cognitive Functions

scholarly journals The relationship between health and mating success in humans

2017 ◽  
Vol 4 (1) ◽  
pp. 160603 ◽  
Author(s):  
Yong Zhi Foo ◽  
Leigh W. Simmons ◽  
Gillian  Rhodes
Keyword(s):  
Oxidative Stress ◽  
Sexual Behaviour ◽  
Mating Success ◽  
Semen Quality ◽  
Physiological Measures ◽  
High Quality ◽  
Physiological Indicators ◽  
Health Measures ◽  
Healthy Humans ◽  
The Relationship

Health has been claimed to play an important role in human sexual selection, especially in terms of mate choice. Our preferences for attractive individuals are said to represent evolved adaptations for finding high-quality, healthy mates. If this is true, then we expect health to predict mating success in humans. We tested this hypothesis using several important physiological indicators of health, including immune function, oxidative stress and semen quality, and self-reported measures of sexual behaviour that contribute to mating success. In contrast to our hypothesis, we did not find a relationship between the physiological measures of health and sexual behaviour. Our results provide little support for claims that health, at least the health measures we used, increases mating success in relatively healthy humans.

scholarly journals Increased cortical excitability after selective REM sleep deprivation in healthy humans: A transcranial magnetic stimulation study

2013 ◽  
Vol 14 (3) ◽  
pp. 288-292 ◽  
Author(s):  
Fabio Placidi ◽  
Silvana Zannino ◽  
Maria Albanese ◽  
Andrea Romigi ◽  
Francesca Izzi ◽  
...  
Keyword(s):  
Transcranial Magnetic Stimulation ◽  
Sleep Deprivation ◽  
Rem Sleep ◽  
Magnetic Stimulation ◽  
Cortical Excitability ◽  
Rem Sleep Deprivation ◽  
Healthy Humans
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