cognitive arousal
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2021 ◽  
pp. 026142942110650
Author(s):  
Nisa Gökden Kaya ◽  
Gülendam Akgül

Due to the effects of a worldwide outbreak of COVID-19, as in many countries, students in Turkey started to have online education since March 2020. Factors such as their motivation and need for learning, and higher cognitive arousal would make it more difficult for gifted students to become away from schools. In this context, this research aimed to examine the experiences of gifted students during the online education process from their parents’ viewpoint. The data, obtained from 15 parents via telephone interviews, were analyzed by descriptive interpretive approach, one of the qualitative research methods. The validity and reliability of the data were ensured. According to the results, seven categories emerged: reflections on education, advantages, disadvantages, psychological impacts, solutions, observed emotions, and suggestions. The results were discussed in terms of gifted students’ characteristics, previous online education practices, and suggestions for future use of online education for gifted children after the pandemic period.


2021 ◽  
pp. 205015792110561
Author(s):  
Kexin Wang ◽  
Sebastian Scherr

TikTok is one of the most popular apps. TikTok's endless stream of content, the lack time stamps or notifications of ever being “all caught up,” and concealing the phone's clock make it easy to lose track of time on TikTok. However, there is a lack of knowledge about how TikTok use may therefore interfere with our circadian rhythms, particularly our sleep hygiene. By focusing on pre-sleep cognitive arousal, this study aimed to close this knowledge gap by investigating the association between automatic TikTok use and daytime fatigue. We also investigated how individual preferences for sensation seeking and delayed gratification moderated this relationship. Within a sample of 1,050 TikTok/Douyin users in China, automatic TikTok use was associated with increased daytime fatigue that was mediated by higher levels of cognitive arousal before sleep. This relationship was aggravated by a preference for sensation seeking, and attenuated by a preference for delayed gratification. Above and beyond these early empirical insights, we also provide an early explanatory framework that is meant to systematize both existing and future knowledge about the use of TikTok.


2021 ◽  
Vol 12 ◽  
Author(s):  
Elizabeth J. Halstead ◽  
Emma C. Sullivan ◽  
Dagmara Dimitriou

Background: The longer-term impact of the pandemic on autistic adults' sleep are yet to be revealed, with studies concentrating on sleep in autistic children or mental health outcomes and coping strategies of autistic adults. Given the prevalence of sleep problems experienced by autistic adults and the changes in routine that have occurred as a result of COVID-19 societal restrictions, this study assessed the impact of the COVID-19 pandemic on sleep problems via a longitudinal subjective assessment method.Methods: Sleep data were gathered at three time points from 95 autistic adults, namely prior to the pandemic, at the start of COVID-19 and several months into COVID-19 to obtain a rich longitudinal dataset ascertaining how/if sleep patterns have changed in autistic adults over these several months.Results: In comparison to pre-lockdown, several sleep components were shown to improve during the lockdown. These improvements included reduced sleep latency (time taken to fall asleep), longer sleep duration, improved sleep efficiency, improved sleep quality, as well as improved daytime functioning. Pre-sleep cognitive arousal scores were found to decrease compared to pre-lockdown, meaning cognitive arousal improved. Approximately 65% of participants reported that they felt their sleep had been impacted since COVID-19 since Time 1, with the most common reasons reported as waking up exhausted (36.92%), not being able to get to sleep (33.85%), waking up in the night (29.23%), having a disrupted sleep pattern (27.69%), and nightmares (18.46%).Conclusions: Improvements in sleep may be related to societal changes (e.g., working from home) during the pandemic. Some of these changes are arguably beneficial for autistic adults in creating a more autism-inclusive society, for example telehealth opportunities for care. Further exploration of the associations between mental health and sleep are warranted.


SLEEP ◽  
2021 ◽  
Author(s):  
Leonie F Maurer ◽  
Colin A Espie ◽  
Ximena Omlin ◽  
Richard Emsley ◽  
Simon D Kyle

Abstract Study Objectives Sleep restriction therapy (SRT) effectively treats insomnia but mechanisms are poorly understood. Theoretical models suggest that potentiation of sleep pressure and reduction of arousal are key mechanisms of action. To our knowledge this has never been directly tested. We designed a randomised controlled trial with embedded mechanistic measurement to investigate if SRT causally modifies multidimensional assessments of sleep pressure and arousal. Methods Participants aged 25-55 who met DSM-5 diagnostic criteria for insomnia disorder were randomised to four weeks of SRT or time in bed regularisation (TBR), a control intervention that involves prescription of a regular but not reduced time in bed. Sleep pressure was assessed through daily diary appraisal of morning and evening sleepiness, weekly Epworth sleepiness scale (ESS) scores, psychomotor vigilance, and NREM delta power (0.75-4.5Hz) from ambulatory polysomnographic recordings. Arousal was assessed through daily diary appraisal of cognitive arousal, the pre-sleep arousal scale (PSAS), and NREM beta power (15-32Hz). Outcomes were assessed at baseline (2-week period prior to randomisation), during the intervention phase (1-4 weeks post-randomisation), and at 12-week follow-up. We performed intention-to-treat analyses using linear mixed models. For continuous daily measures, the treatment period was split into early (weeks 1-2) and late (weeks 3-4) treatment. Results Fifty-six participants (39 females, mean age=40.78±9.08) were assigned to SRT (n=27) or TBR (n=29). The SRT group showed enhanced sleep pressure relative to TBR, reflected in (1) enhanced sleepiness in the evening during early (d=1.17) and late treatment (d=0.92), and in the morning during early treatment (d=0.47); (2) higher daytime sleepiness on the ESS at weeks-1 and -2 (d=0.54, d=0.45); and (3) reduced psychomotor vigilance at week-1 (d=0.34). The SRT group also showed reduced arousal relative to TBR, reflected in lower levels of daily-monitored cognitive arousal during early treatment (d=0.53) and decreased PSAS total score at week-4 and week-12 (ds≥0.39). Power spectral analysis of all night NREM sleep revealed an increase in relative, but not absolute, EEG delta power at week-1 and week-4 (ds≥0.52) and a decrease of relative EEG beta power at week-4 (d=0.11). Conclusion For the first time we show that SRT increases sleep pressure and decreases arousal during acute implementation, providing support for mechanism-of-action.


2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Debbie J. Bean ◽  
Juliette Horne ◽  
Arier C. Lee ◽  
Malcolm H. Johnson

Abstract Objectives Insomnia is commonly comorbid with chronic pain, and typically leads to worse outcomes. Two factors that could contribute to a cycle of pain and sleeplessness are pre-sleep cognitive arousal (repetitive thought processes) and low mood. This study aimed to examine how pain, sleep disturbance, mood, and pre-sleep cognitive arousal inter-relate, to determine whether low mood or pre-sleep cognitive arousal contribute to a vicious cycle of pain and insomnia. Methods Forty seven chronic pain patients completed twice daily diary measures and actigraphy for one week. Analyses investigated the temporal and directional relationships between pain intensity, sleep quality, time awake after sleep onset, anhedonic and dysphoric mood, and pre-sleep cognitive arousal. Fluctuations in predictor variables were used to predict outcome variables the following morning using mixed-effects modelling. Results For people with chronic pain, an evening with greater pre-sleep cognitive arousal (relative to normal) led to a night of poorer sleep (measured objectively and subjectively), lower mood in the morning, and a greater misperception of sleep (underestimating sleep). A night of poorer sleep quality led to greater pain the following morning. Fluctuations in pain intensity and depression did not have a significant influence on subsequent sleep. Conclusions For people with chronic pain, cognitive arousal may be a key variable exacerbating insomnia, which in turn heightens pain. Future studies could target cognitive arousal to assess effects on sleep and pain outcomes.


2021 ◽  
Vol 5 (Supplement_2) ◽  
pp. 902-902
Author(s):  
Kara Crampton ◽  
Garett Jackson ◽  
Hannah Streight ◽  
Jonathan Little

Abstract Objectives To test the hypotheses that Bulletproof Coffee (a blended drink containing coffee, medium-chain triglyceride [MCT] oil, and grass-fed ghee) will acutely improve cognitive function and lead to greater satiety when compared to black coffee. Methods This study uses a single-blind, counterbalanced, randomized cross-over design with each participant completing two visits ∼7 days apart. The researchers are unaware of the beverage consumed by the participant, however, distinct differences in taste and texture between the Bulletproof Coffee (10 oz freshly brewed coffee, 15 ml MCT oil, 15 ml grass-fed ghee, ∼250 kcal) and black coffee (10 oz freshly brewed coffee, ∼1 kcal) prevented participant blinding. At the time of COVID-19 in-person research curtailment on our campus, six young, healthy participants (n = 5 females, age = 25 ± 8) who are regular coffee consumers had completed both trials and we are presenting the preliminary data here. During each trial participants complete baseline fasted measurements of cognitive performance (Digit Substitution Task [DSST], Stroop Task and Speed Task, all performed on a tablet computer), hunger/fullness, cognitive arousal, and gastrointestinal distress and then consume one of the two test beverages. The same measures are obtained again at 60- and 170-minutes post-consumption. Results Preliminary results suggest that there is no difference in cognitive function between the two conditions measured by number correct on the DSST (P = 0.44). Results suggest that there is a significant condition by time interaction resulting in greater measurements of fullness (P = 0.04) over the visit and a lower perceived prospective food consumption (P = 0.02) in the Bulletproof Coffee condition when compared to black coffee. Conclusions To our knowledge, this is the first study to examine the effects of Bulletproof coffee on cognitive performance. Preliminary data suggests that there may be no benefit of Bulletproof coffee over black coffee for improving cognitive performance. However, consuming one Bulletproof coffee containing 250 kcal, as compared to black coffee, does appear to increase feelings of fullness and result in a reduction in perceived prospective food consumption after 3 hours. Funding Sources Natural Sciences and Engineering Research Council (NSERC) of Canada.


2021 ◽  
pp. 1-17
Author(s):  
David A. Kalmbach ◽  
Louise M. O’Brien ◽  
D’Angela S. Pitts ◽  
Chaewon Sagong ◽  
Lily K. Arnett ◽  
...  

Circulation ◽  
2021 ◽  
Vol 143 (Suppl_1) ◽  
Author(s):  
Megan E Petrov ◽  
Kimiya Kasraeian ◽  
Nana Jiao ◽  
Shawn Youngstedt ◽  
farouk mookadam ◽  
...  

Aim: Insomnia is associated with cardiovascular disease (CVD), particularly the phenotype with objective short sleep duration and associated physiological arousal. However, what objective sleep and arousal characteristics among patients with insomnia are related to markers of cardiovascular structure and function remains unknown. The present study examined the association of objective sleep metrics and self-reported arousability with arterial stiffness, endothelial function, and left ventricular function among patients with insomnia disorder. Methods: Sixteen young, healthy adults (age: M [ SD ]=30[7]; 56.3% women) meeting diagnostic criteria for insomnia disorder and reporting no history of CVD, underwent fasting vascular testing including carotid-femoral pulse wave velocity (cfPWV) to assess arterial stiffness (SphymocorXCEL TM ), brachial-artery flow mediated dilation (FMD) to assess endothelial function, and 2D echocardiography to assess left ventricular function (Terason uSmart 3300 TM ). Left ventricular function was assessed by ejection fraction (EF), global longitudinal strain (GLS), mitral valve E/e’ (MVE/e’), and lateral e’ using standardized methods. Ten participants wore a portable sleep monitor for 1 night (WatchPat200, Itamar Medical) and an actigraph for 8 nights (Actiwatch Spectrum Plus, Philips Respironics). All participants completed the Pre Sleep Arousal Scale (PSAS; somatic & cognitive subscales), and the Arousal Predisposition Scale (APS). Bivariate correlations and curvilinear regressions (total sleep time [TST] only) were conducted for the associations between actigraphy-assessed TST and WatchPat (WP) TST, actigraphy-assessed mean bedtime, and PSAS and APS scores with cardiovascular markers. Each set of one sleep metric with all six cardiovascular markers were Bonferroni corrected (α level: p <0.007). Results: On average, participants obtained 7h,9min of TST (range: 6h,26min - 8h,41min) and went to bed at 23:40 (range:21:47-2:13) via actigraphy, and slept 6h,51min via WP. Mean PSAS Somatic, PSAS Cognitive, and APS scores were 13.7(SD=4.5), 24.5(SD=7.5), and 27.9(SD=7.6), respectively. cfPWV (range:4.6-8.0), EF% (range:55.0-70.9), GLS% (range:-25- -19), and MVE/e’ (range:3.6-13.3) were all within age and sex normative ranges. Mean FMD was 7.8% (SD=2.6, range:4.4-14.6), and lateral e’ was 15 cm/s (SD=4.5, range:9-22). Correlations indicated that greater PSAS cognitive scores were related to worsening (less negative) GLS% ( r =0.77, p =0.001), later bedtimes were associated with lower lateral e’ ( r =-0.84, p =0.004), and shorter WPTST was associated with lower EF% (r=0.84, p=0 . 002). Conclusion: Among young adults with insomnia disorder, greater cognitive arousal, later bedtimes, and shorter objective total sleep time were associated with subclinical worsening of left ventricular strain, diastolic and systolic function.


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