Effect Of Sleep Quality Research Articles

Napping and toddlers’ memory for fast-mapped words

When toddlers hear a novel word, they quickly and independently link it with a novel object rather than known-name objects. However, they are less proficient in retaining multiple novel words. Sleep and even short naps can enhance declarative memory in adults and children and this study investigates the effect of napping on children’s memory for novel words. Forty two-and-a-half-year-old children were presented with referent selection trials for four novel nouns. Children’s retention of the words was tested immediately after referent selection, four hours later in the afternoon, and the following morning. Half of the toddlers napped prior to the afternoon retention test. Amongst the toddlers who napped, retention scores remained steady four hours after exposure and the following morning. In contrast, for the wake group, there was a steady decline in retention scores by the following morning and significantly lower retention scores compared to the nap group. Napping following exposure to novel word–object associations could help in maintaining memories and limiting decay. Nap duration was also associated with better retention scores, but there were no effects of sleep quality, habitual napping, or sleepiness. The findings have implications for the role of napping in children’s language acquisition.

The Effect of Sleep Quality and Depressive Symptom on Quality of Life for Stroke Patients

The Effect of Sleep Quality and Depressive Symptom on Quality of Life for Stroke Patients

Effects of sleep quality on the oral health in type 2 diabetic patients

Objective To explore the effect of sleep quality on the oral health in type 2 diabetic patients, and provide basis for the improvement of their oral health. Methods A total of 123 type 2 diabetic patients hospitalized in 2 Class Ⅲ Grade A hospitals in Nanjing from March 2017 to June 2017 were recruited in this study using convenient sampling method. Data was collected through Oral Health Impact Profile (OHIP-14) and Pittsburgh Sleep Quality Index (PSQI) . The correlation between sleep quality and oral health of type 2 diabetic patients was analyzed using hierarchical regression. Results The total PSQI score was (7.72±3.42) and the incidence of sleep disorder with type 2 diabetic patients was 46.3% (PSQI≥ 8) . The total OHIP-14 score was (11.84±8.62) . In the sleep disorder group, the correlation score between the total OHIP-14 score and functional limitation, pain and discomfort, disability, handicap of independence were (13.93±8.94) , (3.82±2.85) , (4.68±2.54) , (1.47±2.07) , (3.95±3.68) . Compared to patients with good sleep quality, patients with sleep disorder had significantly higher OHIP-14 scores and factor scores except for psychological disability (t=3.21, 2.65, 3.45, 2.57; P<0.05) . Hierarchical regression analysis indicated that sleep quality was positively relevant to oral health, which could explain 6.1% of the variance of research capacity (P=0.024) . Conclusions The incidence of sleep disorder is high in patients with type 2 diabetes and sleep disorder has a negative impact on oral health. Medical staff should pay more attention to the early identification of sleep disorders in patients with type 2 diabetes, and take timely measures to improve the sleep quality, so as to promote the oral health of patients. Key words: Diabetes mellitus, type 2; Sleep quality; Oral health

The effect of sleep quality on academic performance is mediated by Internet use time: DADOS study

ObjectiveThe aims of the present study were to analyze the association of sleep patterns with academic and cognitive performance in adolescents, and to test the potential mediating effect of different activities of screen media usage on this association. MethodsA sample of 269 adolescents (140 boys) aged 14 years from the baseline data of the Deporte, ADOlescencia y Salud study completed questionnaires about sleep quality, cognitive performance, and leisure-time sedentary behaviors. Sleep duration was objectively computed using a wrist-worn GENEActiv accelerometer and academic performance was analyzed through school records. ResultsSleep quality (but not sleep duration) was associated with all the academic performance indicators (all p<0.05). Analysis of covariance revealed higher grades among adolescents with better sleep quality (PSQI≤5; all p<0.05). These analyses showed no differences regarding cognitive performance. Internet use time was revealed as a mediator of the association between sleep quality and academic performance, being significant for all academic performance indicators (PM ranging from 15.5% to 16.0%). ConclusionsThe association between sleep quality and academic performance in adolescents is mediated by time of Internet use. Overall, reducing Internet use in adolescents could be an achievable intervention for improving sleep quality, with potentially positive effects on academic performance.

Impact of sleep quality on clinical features of primary Sjögren's syndrome

Background/AimsThis study aimed to investigate the inf luence of poor sleep quality on clinical features of primary Sjögren’s syndrome (pSS).MethodsSleep quality was cross-sectionally assessed using the Pittsburgh Sleep Quality Index (PSQI), and demographic, clinical, and laboratory data were collected from 115 Korean patients with pSS. The patients completed questionnaires on the European League Against Rheumatism (EULAR) SS Patient Reported Index (ESSPRI), quality of life (EuroQOL five dimensions questionnaire [EQ-5D]), fatigue (fatigue severity score [FSS]), and depression (Beck Depression Inventory [BDI] II]). Symptoms and patient global assessment (PGA) were evaluated with a 100-mm visual analogue scale (VAS). The EULAR sicca score (ESS), ESSPRI, and EULAR SS Disease Activity Index (ESSDAI) were calculated at study enrollment.ResultsFifty-three patients (46.1%) had poor sleep quality and 32.4% of 71 patients without depression were poor sleepers. Poor sleepers had a significantly lower EQ-5D or ESSDAI and a significantly higher FSS, BDI-II, PGA, ESS, ESSPRI, or VAS scores for extra-glandular symptoms than good sleepers. Neutrophil and lymphocyte counts were significantly higher and immunoglobulin G levels tended to decrease in poor sleepers. Additionally, PSQI was negatively correlated with EQ-5D and ESSDAI and positively with ESS, FSS, BDI-II, PGA, VAS scores for their symptoms, and ESSPRI. Multivariate analysis revealed that poor sleep quality remained the independent determinants of the unsatisfactory symptom state (ESSPRI ≥ 5).ConclusionsOur results showed that poor sleep quality could significantly affect the patient-oriented outcomes and physician-reported activity index of pSS patients through the various effects of sleep quality on the psychological or somatic symptoms and the immune system.

일부지역 버스운전기사의 수면의 질이 작업능력에 미치는 영향

일부지역 버스운전기사의 수면의 질이 작업능력에 미치는 영향

Effects of Sleep Quality on Imagery Ability in Athletic Populations

This study explored the relation between athletes’ sleep quality and imagery ability. A total of 201 athletes (39.3% female, 60.7% male; Mage = 23.28 years, SD = 6.00) completed the Sport Imagery Ability Questionnaire and the Pittsburgh Sleep Quality Index. Simple regression analyses revealed that global sleep quality predicted affect imagery ability. Multiple regression analyses revealed that daytime dysfunction predicted global imagery ability as well as skill, strategy, affect, and mastery imagery ability dimensions. In addition, use of sleeping medication predicted global imagery ability, as well as goal and affect imagery ability dimensions. Results provide some support for Cumming and Williams’ revised applied model of deliberate imagery use, suggesting that individual factors influence the effectiveness of imagery use. Specifically, athletes who have no disruption to daily functioning due to sleep find it easier to image sport-related content.

Association of Sleep Quality on Memory-Related Executive Functions in Middle Age.

Sleep quality affects memory and executive function in older adults, but little is known about its effects in midlife. If it affects cognition in midlife, it may be a modifiable factor for later-life functioning. We examined the association between sleep quality and cognition in 1220 middle-aged male twins (age 51-60 years) from the Vietnam Era Twin Study of Aging. We interviewed participants with the Pittsburgh Sleep Quality Index and tested them for episodic memory as well as executive functions of inhibitory and interference control, updating in working memory, and set shifting. Interference control was assessed during episodic memory, inhibitory control during working memory, and non-memory conditions and set shifting during working memory and non-memory conditions. After adjusting for covariates and correcting for multiple comparisons, sleep quality was positively associated with updating in working memory, set shifting in the context of working memory, and better visual-spatial (but not verbal) episodic memory, and at trend level, with interference control in the context of episodic memory. Sleep quality was associated with visual-spatial recall and possible resistance to proactive/retroactive interference. It was also associated with updating in working memory and with set shifting, but only when working memory demands were relatively high. Thus, effects of sleep quality on midlife cognition appear to be at the intersection of executive function and memory processes. Subtle deficits in these age-susceptible cognitive functions may indicate increased risk for decline in cognitive abilities later in life that might be reduced by improved midlife sleep quality. (JINS, 2018, 24, 67-76).

Effects of Actigraphically Acquired Sleep Quality on Driving Outcomes in Obstructive Sleep Apnea Patients and Control Drivers: A Naturalistic Study.

We examined the effects of sleep quality on next day driving outcomes in a 3.5-month naturalistic driving study of 67 OSA and 47 matched control drivers. Sleep quality measures included total sleep time and sleep fragmentation from actigraphy. The driving outcomes included average speed, lateral control, longitudinal control, distraction, attention to driving- and non-driving related tasks. Sleep quality affected next day's driving performance differently for OSA and control drivers. Better sleep quality was associated with better lateral and longitudinal control during highway driving for control drivers. The reverse was true for OSA drivers. Similar effects were also seen in terms of distractions and attention to the driving task. These effects suggest improved sleep leads to greater risky driving and 'activation' among OSA drivers. Collectively, the findings suggest investment in long-term monitoring of sleep quality in commercial vehicle drivers both with and without sleep disorders may help manage safety risks.

Association of sleep quality in Behcet disease with disease activity, depression, and quality of life in Korean population.

Background/AimsSleep disturbance is prime concern in patients with Behcet disease. The purpose of this study was to find out the effects of sleep quality, in Korean patients suffering from Behcet disease. We further investigated the relationship between depression, quality of life and the clinical findings of Behcet disease.MethodsThe study was performed by the cross-sectional design. Sleep quality was assessed by the Korean version of Pittsburgh sleep quality index (PSQI). Disease activity of Behcet disease was evaluated by Behcet disease current activity form (BDCAF). Depression was assessed by the Korean version of Beck depression inventory second edition (BDI-2). Quality of life was assessed by the Korean version of the Leeds Behcet disease quality of life measure (BDQoL).ResultsAmong the 100 patients studied, 42% reported poor sleep quality (PSQI ≥ 9). These patients have a higher BDI-2, total BDCAF and pain visual analogue scale (VAS) score (p < 0.001, p = 0.022, and p = 0.005). Considering BDCAF, the frequency of genital ulcer was significantly higher (p = 0.01). Behcet was higher in females. The BDQoL was lower in poor sleeper group (p = 0.004 and p < 0.001). Among 7 PSQI components, daytime dysfunction was higher in patients with high disease activity (p = 0.03). Total PSQI score were strongly correlated with BDCAF, BDI-2, BDQoL, and pain VAS score (p = 0.02, p < 0.001, p < 0.001, and p < 0.001, respectively).ConclusionsLow sleep quality is directly associated with disease activity, depression, and quality of life in Korean patients with Behcet disease.

Effects of Sleep Quality on the Association between Problematic Mobile Phone Use and Mental Health Symptoms in Chinese College Students.

Problematic mobile phone use (PMPU) is a risk factor for both adolescents’ sleep quality and mental health. It is important to examine the potential negative health effects of PMPU exposure. This study aims to evaluate PMPU and its association with mental health in Chinese college students. Furthermore, we investigated how sleep quality influences this association. In 2013, we collected data regarding participants’ PMPU, sleep quality, and mental health (psychopathological symptoms, anxiety, and depressive symptoms) by standardized questionnaires in 4747 college students. Multivariate logistic regression analysis was applied to assess independent effects and interactions of PMPU and sleep quality with mental health. PMPU and poor sleep quality were observed in 28.2% and 9.8% of participants, respectively. Adjusted logistic regression models suggested independent associations of PMPU and sleep quality with mental health (p < 0.001). Further regression analyses suggested a significant interaction between these measures (p < 0.001). The study highlights that poor sleep quality may play a more significant role in increasing the risk of mental health problems in students with PMPU than in those without PMPU.

교대근무 간호사의 직무스트레스와 스트레스반응과의 관계에서 수면의 질의 매개효과

교대근무 간호사의 직무스트레스와 스트레스반응과의 관계에서 수면의 질의 매개효과

The interplay between sleep behavior and affect in elementary school children’s daily life

Recent reviews raised the idea of a bidirectional relation between sleep behavior and affect in adults, but little is known about this interplay in general and especially regarding children. In this micro-longitudinal study, the interplay of sleep and affect was captured directly in children’s daily life context in and out of school through ambulatory assessment. For 31 consecutive days, 110 elementary school children (8–11 years old) provided information about their last night’s sleep and reported their current affect at four daily occasions in school and at home on smartphones. A multilevel approach was used to analyze the relation between sleep and affect the next day (morning, noon, and afternoon) and the relation between evening affect and subsequent sleep. At the within-person level, sleep quality was related to all observed facets of affect the next day and the strongest effects were found in the morning. The effect of sleep quality on positive affect was particularly pronounced for children who on average went to bed early and slept long. There were, however, no direct within-person effects of sleep quantity on affect. Furthermore, evening affect was related to subsequent sleep. The findings support the idea of a bidirectional relation between affect and sleep in children’s daily life (including school). They suggest that good sleep provides a basis and resource for children’s affective well-being the next day and demonstrate the importance of analyzing within-person variations of children’s sleep. Micro-longitudinal findings can contribute to explain how macro-longitudinal relations between sleep and affect develop over time.

Effects of Sleep Quality on the Academic Performance of Undergraduate Medical Students

Abstract Background: Medical students are exposed to a significant level of pressure because of their academic demands. Thus, they are at increased risk for sleep disorders. Objectives: This study was conducted to examine the prevalence of sleep disturbance among medical students and investigate any relationship between sleep disorder and academic performance. Materials and Methods: This work is a cross-sectional questionnaire-based study. Participants of this study consisted of first-, second-, and third-year medical students. The Pittsburgh sleep quality index (PSQI) was adopted to identify sleep disorder, and the grade point average of the students was recorded for academic performance. Results: A total of 177 respondents, with a response rate of 55%, were obtained. According to the PSQI score, 36.6% of participants were considered to have abnormal sleep habits, with a statistically significant increase in female students (P < 0.05). Abnormal PSQI scores were associated with lower academic achievement (P < 0.05). Marital status, habitat, smoking and physical activity were also associated with PSQI scores. Conclusions: A high prevalence of sleep disorder was found in this population, specifically among female students. Analysis of the relationship between sleep disorder and academic performance indicates a significant relationship of PSQI scores with marital status, habitat, smoking, physical activity, and academic performance. Keywords: Academic Performance, Medical Students, Pittsburgh Sleep Quality Index, Sleep Quality

ID 218 – Dissociation of sleep quality and cognition in mild cognitive impairment and Alzheimer’s disease: Evidence from event-related potential study

Objective Previous studies suggest that long-term changes in sleep may influence attention than short-term changes in duration of sleep. Sleep quality is more permanent indicator of sleep problem. While, the impact of sleep quality on sensory and cognitive processes is still unclear in patients with mild cognitive impairment (MCI) and Alzheimer’s disease (AD). Cognitive event-related potentials (ERPs) are one of the most informative and dynamic methods of monitoring attentive and cognitive processes, especially in the temporal domain. The aims of the present study are to investigate the effect of sleep quality in cognition by event-related potentials in patients with MCI and AD. Methods Using the Cognitive Abilities Screening Instrument (CASI), Chinese version of the Pittsburg Sleep Quality Index (PSQI), Epworth Sleepiness Scale (ESS), and P300 ERPs 42 patients with probable AD, 70 patients with MCI, and 92 controls were recruited. Results When the participants were stratified according to the PSQI and ESS, there was no difference in scores of CASI and all measurements of ERPs in controls and patients with MCI and AD. Conclusion Our findings suggest that there is no association between sleep quality and cognition by ERPs in patients with MCI and AD.

The Effect of Sleep Quality on the Development of Type 2 Diabetes in Primary Care Patients.

Sleep has important effects on physical and mental health, and sleep disorders are associated with increased mortality and morbidity. This study was conducted to evaluate the relationship between sleep duration or sleep quality and the risk of type 2 diabetes. The FACTS (FAmily CohorT Study in primary care) was established to investigate the relations between familial environment and health which was conducted at 22 family medicine outpatient clinics in general hospitals. Total 563 patients without diabetes who received ≥1 year follow-up examination were included in the analysis. We used the Pittsburgh Sleep Quality Index to determine sleep quality, and a score of ≥5 was considered to define poor sleep quality. Patients taking oral hypoglycemic agents, having a fasting glucose level of >126 mg/dL, or diagnosed with diabetes by physicians were classified as having diabetes. The median follow-up period was 2.5 years. Poor sleep quality was associated with a higher risk of diabetes after adjusting for age, sex, body mass index, income, physical activity, and family history of diabetes (relative risk=2.64; 95% confidence interval, 1.03-6.78). As a risk factor for the development of diabetes, poor sleep quality may independently increase the incidence of diabetes.

Effects of comprehensive nurse-doctor collaboration intervention on sleep quality of lung cancer patients with chemotherapy

Objective To explore the influences of the comprehensive intervention on sleep quality of the lung cancer patients receiving chemotherapy. Methods A total of 94 lung cancer patients receiving chemotherapy were selected from October 2012 to December 2013 and equally randomized into the observation group and control group, with 47 patients in each group. The patients of control group were treated with routine nursing for lung cancer. The patients of observation group adopted the nurse-doctor collaboration management model including psychotherapy, relaxation therapy, sleep restriction therapy, adjust treatment on the basis of routine nursing. After four weeks intervention, the effects were evaluated according to the sleep quality of patients. Results A total of 30 patients could sleep well in the observation group whereas its number was 17 in the control group. The observation group and control group effectiveness were 63.8% and 37.8% respectively. The effect of sleep quality in observation group was significantly better than the control group (χ2=7.191, P=0.007). Conclusions The comprehensive measures can obviously correct the bad sleep habits and sleep behavior in lung cancer patients with chemotherapy, and improve the quality of sleep in those patients. Key words: Lung cancer; Chemotherapy; Sleep quality; Comprehensive

Bidirectional relationship between sleep and optimism with depressive mood as a mediator: A longitudinal study of Chinese working adults

ObjectiveSleep and optimism are important psycho-biological and personality constructs, respectively. However, very little work has examined the causal relationship between them, and none has examined the potential mechanisms operating in the relationship. This study aimed to understand whether sleep quality was a cause or an effect of optimism, and whether depressive mood could explain the relationship. MethodInternet survey data were collected from 987 Chinese working adults (63.4% female, 92.4% full-time workers, 27.0% married, 90.2% Hong Kong residents, mean age=32.59 at three time-points, spanning about 19months). Measures included a Chinese attributional style questionnaire, the Pittsburgh Sleep Quality Index, and the Depression Anxiety Stress Scale. ResultsCross-sectional analyses revealed moderate correlations among sleep quality, depressive mood, and optimism. Cross-lagged analyses showed a bidirectional causality between optimism and sleep. Path analysis demonstrated that depressive mood fully mediated the influence of optimism on sleep quality, and it partially mediated the influence of sleep quality on optimism. ConclusionOptimism improves sleep. Poor sleep makes a pessimist. The effects of sleep quality on optimism could not be fully explained by depressive mood, highlighting the unique role of sleep on optimism. Understanding the mechanisms of the feedback loop of sleep quality, mood, and optimism may provide insights for clinical interventions for individuals presented with mood-related problems.

The Effect of Sleep Quality on Head Impact Severity in Collegiate Football Players

The Effect of Sleep Quality on Head Impact Severity in Collegiate Football Players

Poor sleep quality is associated with a negative cognitive bias and decreased sustained attention.

Poor sleep quality has been demonstrated to diminish cognitive performance, impair psychosocial functioning and alter the perception of stress. At present, however, there is little understanding of how sleep quality affects emotion processing. The aim of the present study was to determine the extent to which sleep quality, measured through the Pittsburg Sleep Quality Index, influences affective symptoms as well as the interaction between stress and performance on an emotional memory test and sustained attention task. To that end, 154 undergraduate students (mean age: 21.27years, standard deviation=4.03) completed a series of measures, including the Pittsburg Sleep Quality Index, the Sustained Attention to Response Task, an emotion picture recognition task and affective symptom questionnaires following either a control or physical stress manipulation, the cold pressor test. As sleep quality and psychosocial functioning differ among chronotypes, we also included chronotype and time of day as variables of interest to ensure that the effects of sleep quality on the emotional and non-emotional tasks were not attributed to these related factors. We found that poor sleep quality is related to greater depressive symptoms, anxiety and mood disturbances. While an overall relationship between global Pittsburg Sleep Quality Index score and emotion and attention measures was not supported, poor sleep quality, as an independent component, was associated with better memory for negative stimuli and a deficit in sustained attention to non-emotional stimuli. Importantly, these effects were not sensitive to stress, chronotype or time of day. Combined, these results suggest that individuals with poor sleep quality show an increase in affective symptomatology as well as a negative cognitive bias with a concomitant decrease in sustained attention to non-emotional stimuli.