scholarly journals Effect of Smartphone Distractions on Cognitive Performance in Adolescents: An Electroencephalography Approach

2021 ◽  
pp. 1-32
Author(s):  
T. A Suhail ◽  
◽  
K.P Indiradevi ◽  
E. M Suhara ◽  
Suresh A. Poovathinal ◽  
...  
Keyword(s):  
Cognitive Performance ◽  
Questionnaire Survey ◽  
Group Performance ◽  
Control Group ◽  
Media Multitasking ◽  
User Group ◽  
Performance Indices ◽  
High User ◽  
Smartphone Use ◽  
Eeg Features

Introduction: The dependence on smartphones has become widespread among all age groups in every realm of daily life. There has been increased concern about the adverse effects of problematic smartphone use and media multitasking among adolescents. Recent studies used various performance measures like questionnaire surveys to examine the association between smartphone addiction and learning performance, and such studies have yielded mixed findings. The current study investigates the effects of media multitasking on cognitive performance using Electroencephalography (EEG) features and a self-report questionnaire survey. Methods: The patterns of smartphone use among adolescents in South India were investigated in this study, using a questionnaire survey. Further, the impact of smartphone usage on cognitive task performance was examined using EEG features. For this, EEGs of twenty-two healthy subjects were recorded during learning tasks before and after using a social networking site on smartphones. Subsequently, various EEG features were extracted, including ratios of wavelet decomposed EEG bands, attention index, and Sample entropy. Finally, these cognitive performance indices were evaluated and compared with a control group. Results: A total of 600 healthy individuals (341 males, 259 females) participated in the survey among whom, 310 (50.91%) belonged to the high-user group. Performance degradation (p=0.005), sleep problems (p=0.040) and mental stress (p=0.049) were more prevalent among the high-user group. A significant decline in EEG-based cognitive performance indices was also observed in the phone-use group compared to the control group. Conclusion: The findings of this study highlight the importance of controlling phone use when engaged in cognitive tasks. The study also offers an insight to develop neurofeedback techniques that enhance cognitive skills.

scholarly journals The Effects of the Combination of High-Intensity Interval Training with 3D-Multiple Object Tracking Task on Perceptual-Cognitive Performance: A Randomized Controlled Intervention Trial

2021 ◽  
Vol 18 (9) ◽  
pp. 4862
Author(s):  
Soo-Yong Park ◽  
Thomas Jürgen Klotzbier ◽  
Nadja Schott
Keyword(s):  
Object Tracking ◽  
Cognitive Performance ◽  
High Intensity ◽  
Interval Training ◽  
Multiple Object Tracking ◽  
Control Group ◽  
High Intensity Interval Training ◽  
Multiple Object ◽  
Post Test ◽  
High Intensity Interval

The ability to process goal-related visual information while ignoring goal-irrelevant information is essential for the human attention system. The study aimed to investigate how perceptual–cognitive performance was affected during high-intensity interval training (HIIT) using a 3D-multiple object tracking (3D-MOT) task called Neurotracker (NT). In an experimental design, 42 healthy adults (age M = 23.3 SD = 2.94, VO2max 52.8 ± 5.66 mL·kg−1·min−1) were randomly assigned to an intervention (HIIT + NT, NT, HIIT) or control group. NT performance (20 trials per session) was measured pre-and post-test (at 5, 15, and 25 min while running on the treadmill). The participants trained twice a week for a 4-week intervention period. There was a significant interaction effect between pre/post-test and groups regarding perceptual-cognitive performance, indicating similar enhancements in the HIIT + NT and the NT group during exercise. HIIT influences physical fitness but did not show any impact on perceptual–cognitive performance. Due to the specific NT task characteristics, improved physical abilities may not directly impact sport-specific perceptual-cognitive performance. Our findings suggest that training resulted in substantial task-specific gains. Therefore, combination training may be proposed as a training program to improve perceptual–cognitive, and physical performance in a time-efficient way.

scholarly journals The impact of the use of some active learning strategies in the teaching of literary knowledge on the literary taste of high school students in the UAE

2019 ◽  
Vol 1 (5) ◽  
Author(s):  
Mohammed Abdul Rahman Al - Jagoub
Keyword(s):  
Active Learning ◽  
Secondary School ◽  
Learning Strategies ◽  
Group Performance ◽  
Control Group ◽  
Significance Level ◽  
Secondary Stage ◽  
Active Learning Strategies ◽  
The Impact ◽  
Experimental Group

The objective of this study was to develop an achievement test to measure the skills of literary tasting. It consists of (30) multiple choice types, which were applied to a sample of the stability test According to the KR 20 equation, the study used semi-experimental research methodology. The sample consisted of (120) male and female students of the 10th grade at Gulf Arab Secondary School for Boys and Al-Hira Secondary School for Girls in Sharjah. The people were chosen deliberately, (60) students, experimental subjects studied the material using active learning strategies, and the control group studied the same material in the normal way. After analyzing the data, the results of the study indicated that the students in the experimental group achieved a higher level of control group students Statistical analysis showed differences in the level of literary taste at the statistical significance level (α = 0.05); due to the active learning strategies, the total mathematical mean of the experimental group performance was on the post taste test (26.60) For the control group (20.90). The value of P (58.05), the value of the significance level (0.00), that is less than (0.05), which indicates that there are significant differences between the experimental group and the control group for the benefit of the experimental group, and the value of (P) Between the sex and the group was (1.00), which is not statistically significant value, where its significance (0.32), and does not indicate the existence of an effect of interaction between the teaching method and sex. The study concluded with recommendations calling on teachers to use active learning strategies in the teaching of literary knowledge. And focus on those strategies when writing Arabic language books for the secondary stage.

scholarly journals Application of Standardized Measures in Clinical Teaching of Medical Imaging Department

2020 ◽  
Vol 4 (2) ◽  
Author(s):  
Chunhua Qi
Keyword(s):  
Medical Students ◽  
Medical Imaging ◽  
Clinical Teaching ◽  
Group Performance ◽  
Control Group ◽  
Standardized Measures ◽  
Imaging Department ◽  
Significant Difference ◽  
Observational Group ◽  
Assessment Result

Objective: To explore the application of standardized measures in clinical teaching of medical imaging department. Methods: Forty-eight medical interns in Department of Medical Imaging of our hospital from February 2018 to May 2019 were selected as research objects. They were divided into 2 groups according to random number table method, with 24 cases in each group. Routine education management was performed in clinical teaching for control group, standardized measure management was performed in clinical teaching for observational group. Performance assessment before and after intervention was compared between two groups of medical students. Results: Before intervention, there was no significant difference in assessment result between two groups of medical students (P>0.05). Assessment result after intervention was higher than before intervention in two groups of medical students. Observational group was higher than control group, the difference was statistically significant (P<0.05). Conclusions: Implementation of standardized measures in clinical teaching of medical imaging department could significantly improve assessment result of medical students, and its application can be considered in clinical teaching.

scholarly journals A Study of Idiom Teaching from the Perspective of Conceptual Metaphor

2019 ◽  
Vol 4 (1) ◽  
Author(s):  
Xinrong Shan
Keyword(s):  
Quantitative Analysis ◽  
Questionnaire Survey ◽  
Teaching And Learning ◽  
Conceptual Metaphor ◽  
Vocabulary Learning ◽  
Control Group ◽  
Qualitative And Quantitative Analysis ◽  
Qualitative And Quantitative ◽  
Post Test ◽  
Experimental Group

As a part of vocabulary learning, the idiom is an important part of language teaching. This study is to investigate whether conceptual metaphor can promote idioms’ teaching and learning or not. In the course of study, we make use of a combination of qualitative and quantitative analysis, collecting data through the questionnaire survey and do experiments in teaching and learning idioms. We get the conclusion: the T value of the experimental group and the control group is p<0.05, the pre-test and post-test values is p<0.05. It is feasible to apply the conceptual metaphor in idiom teaching and learning.

scholarly journals Don't Let Ultraviolet Hurt Your Eyes During SARS-CoV-2 Disinfection: A Retrospective Observational Study

2021 ◽  
Author(s):  
Liuxueying Zhong ◽  
Rongjiao Liu ◽  
Jingyi Peng ◽  
Wanwen Shao ◽  
Xiaofeng Lin ◽  
...  
Keyword(s):  
Observational Study ◽  
Questionnaire Survey ◽  
Preventive Measures ◽  
Retrospective Observational Study ◽  
Control Group ◽  
Equivalent Control ◽  
Eye Damage ◽  
Uv Lamp ◽  
Uv Lamps ◽  
At Home

Abstract Purpose: A retrospective observational study was carried on to investigate whether UV lamp will increase the risk of eye damage by comparing the exposure factors leading to ultraviolet keratitis (UVK) during the epidemic of COVID-19 and the control group in 2019.Methods: Data on UVK patients with clear exposure histories and typical symptoms were gathered. The date acquisition refers to the most crucial period in fighting the COVID-19 pandemic (24 January to 29 February in 2020, crucial period for short) in China, while the equivalent control 37- day period in 2019 refers to the period from 4 February to 12 March (control group for short). The detailed information of UVK cases were gathered through questionnaire survey, including injury photosources, ultraviolet applications, onset locations. Results: This retrospective observational study of 81 patients revealed that the number of UVK cases during crucial period 1 was threefold higher (n=61 patients) than control group (n=20 patients). All cases who recorded injury photosources were injury by UV lamps during crucial period, while by UV lamps (61.54%) or welding (38.46%) during control group. There were more than 70% of UVK cases injured at home by household UV lamps during crucial period, while were 15.38% during control group. They are significant differences in UVK photosource and exposure location between 2 groups (P<0.001).Conclusion: Household UV lamp users should be informed about possible UVK risk and of relevant preventive measures. Government and media should guide people use household disinfection items rationally and safely.

Neurobiological findings associated with high cognitive performance in older adults: a systematic review

2018 ◽  
Vol 30 (12) ◽  
pp. 1813-1825 ◽  
Author(s):  
Wyllians Vendramini Borelli ◽  
Lucas Porcello Schilling ◽  
Graciane Radaelli ◽  
Luciana Borges Ferreira ◽  
Leonardo Pisani ◽  
...  
Keyword(s):  
Systematic Review ◽  
Older Adults ◽  
Cognitive Performance ◽  
Anterior Cingulate ◽  
Control Group ◽  
High Performing ◽  
High Performers ◽  
Positron Emission ◽  
Definition Of ◽  
Molecular Brain

ABSTRACTObjectives:to perform a comprehensive literature review of studies on older adults with exceptional cognitive performance.Design:We performed a systematic review using two major databases (MEDLINE and Web of Science) from January 2002 to November 2017.Results:Quantitative analysis included nine of 4,457 studies and revealed that high-performing older adults have global preservation of the cortex, especially the anterior cingulate region, and hippocampal volumes larger than normal agers. Histological analysis of this group also exhibited decreased amyloid burden and neurofibrillary tangles compared to cognitively normal older controls. High performers that maintained memory ability after three years showed reduced amyloid positron emission tomography at baseline compared with high performers that declined. A single study on blood plasma found a set of 12 metabolites predicting memory maintenance of this group.Conclusion:Structural and molecular brain preservation of older adults with high cognitive performance may be associated with brain maintenance. The operationalized definition of high-performing older adults must be carefully addressed using appropriate age cut-off and cognitive evaluation, including memory and non-memory tests. Further studies with a longitudinal approach that include a younger control group are essential.

scholarly journals The Mini-Mental Examination for Children (MMC): Evidence of validity for children with learning difficulties

2019 ◽  
Vol 13 (4) ◽  
pp. 427-435
Author(s):  
Larissa de Souza Salvador ◽  
Ricardo Moura ◽  
Fernanda Oliveira Ferreira ◽  
Peterson Marco Oliveira Andrade ◽  
Maria Raquel Santos Carvalho ◽  
...  
Keyword(s):  
Group Performance ◽  
School Achievement ◽  
Learning Difficulties ◽  
Control Group ◽  
Nonverbal Intelligence ◽  
Motor Abilities ◽  
School Aged Children ◽  
Convergent And Divergent Validity ◽  
Early Elementary School ◽  
Global Accuracy

ABSTRACT The Mini-Mental Examination for Children (MMC) is a widely used tool for assessing global cognitive deficits, however,is still unknown whether MMC is sensitive for investigating cognitive profiles associated with learning difficulties (LD). Objective: Here we investigate the feasibility of using the MMC for screening school-aged children with learning difficulties in spelling and math. Methods: The MMC and other neurophysiological tests were administered to a sample of 168 children, aged 7 to 12 years. The sample was subdivided into a Control group and LD group (Math Difficulties, Spelling Difficulties, Math and Spelling Difficulties). Diagnostic accuracy was assessed with ROC analysis. Convergent and divergent validity was assessed using correlation analysis. Results: Performance on the MMC was associated with nonverbal intelligence, age and school achievement. The LD group had significantly lower performance on the MMC than the Control group. Performance on the MMC discriminated LD children with a global accuracy of around 0.80. Associations between the MMC and the other neuropsychological variables were higher for finger gnosis (r=0.40) and generally higher for early elementary school grades. The MMC proved satisfactory for identifying LD children with good accuracy. Nonverbal intelligence, and perceptual/motor abilities play an important role in MMC performance. Conclusion: The MMC could be a useful instrument for screening children with LD.

scholarly journals COGNITIVE PERFORMANCE, EXERCISE, AND AMYLOID BURDEN: A RANDOMIZED CONTROLLED TRIAL

2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S610-S610
Author(s):  
Amber Watts ◽  
Eric Vidoni ◽  
Jill Morris ◽  
Mark Perry ◽  
David Johnson ◽  
...  
Keyword(s):  
Older Adults ◽  
Aerobic Exercise ◽  
Cognitive Performance ◽  
Cardiorespiratory Fitness ◽  
Pet Imaging ◽  
Verbal Memory ◽  
Controlled Trial ◽  
Control Group ◽  
Digit Symbol Substitution Test ◽  
Exercise Interventions

Abstract Exercise is a promising strategy for prevention of Alzheimer’s disease (AD). Amyloid neuroimaging can identify individuals at risk of developing AD prior to displaying symptoms. We screened adults (65+) with Florbetapir PET imaging and a comprehensive cognitive battery. We randomized 117 participants with normal cognition into a 52-week aerobic exercise program to examine the effects of aerobic exercise on cognitive performance. We compared an intensive exercise treatment group to a standard of care control group. Cognition was assessed at baseline, 26 weeks, and 52 weeks in the domains of verbal memory, visuospatial processing, attention, and executive function. Interim results on 87 participants show cardiorespiratory fitness improved in the exercise group vs. control group (t=3.66(81), p&lt; .001). The degree of change in cardiorespiratory fitness did not differ between those with and without elevated amyloid (t=-0.37(81), p=.710). Greater improvements in cardiorespiratory fitness predicted better performance on cognitive tests including trailmaking test, Stroop test, and digit symbol substitution test, which did not differ by amyloid status. Elevated amyloid levels predicted lower cognitive scores in logical memory, space relations, and identical pictures test. Our findings suggest PET imaging is a valid marker of cognitive performance in non-impaired older adults, and that this pre-clinical amyloid status did not reduce the cognitive benefits of exercise for those who improved in cardiorespiratory fitness. Exercise interventions hold promise for cognitive maintenance among pre-symptomatic older adults with elevated amyloid levels. Finally, results highlight the importance of evaluating multiple cognitive domains which are associated differently with exercise and amyloid status.

scholarly journals A Systematic Review of the Effect of Dietary Supplements on Cognitive Performance in Healthy Young Adults and Military Personnel

Nutrients ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 545 ◽  
Author(s):  
Diane E. Pomeroy ◽  
Katie L. Tooley ◽  
Bianka Probert ◽  
Alexandra Wilson ◽  
Eva Kemps
Keyword(s):  
Systematic Review ◽  
Young Adults ◽  
Dietary Supplements ◽  
Cognitive Performance ◽  
Military Personnel ◽  
Grey Literature ◽  
Cognitive Outcome ◽  
Control Group ◽  
Wide Range ◽  
Cognitive Benefits

Intake of dietary supplements has increased, despite evidence that some of these have adverse side effects and uncertainty about their effectiveness. This systematic review examined the evidence for the cognitive benefits of a wide range of dietary supplements in healthy young adult samples; the aim was to identify if any might be useful for optimising cognitive performance during deployment in military personnel. Searches were conducted in 9 databases and 13 grey literature repositories for relevant studies published between January 2000 and June 2017. Eligible studies recruited healthy young adults (18–35 years), administered a legal dietary supplement, included a comparison control group, and assessed cognitive outcome(s). Thirty-seven of 394 identified studies met inclusion criteria and were included for synthesis. Most research was deemed of low quality (72.97%; SIGN50 guidelines), highlighting the need for sound empirical research in this area. Nonetheless, we suggest that tyrosine or caffeine could be used in healthy young adults in a military context to enhance cognitive performance when personnel are sleep-deprived. Caffeine also has the potential benefit of improving vigilance and attention during sustained operations offering little opportunity for sleep. Inconsistent findings and methodological limitations preclude firm recommendations about the use of other specific dietary supplements.

The Social and Academic Effects of Cooperative LEARN Strategy Instruction in Inclusive Elementary Classes

2020 ◽  
pp. 073194872094416
Author(s):  
D. Sue Vernon ◽  
Jean Bragg Schumaker ◽  
Donald D. Deshler
Keyword(s):  
General Education ◽  
Group Performance ◽  
Strategy Instruction ◽  
Instructional Program ◽  
Control Group ◽  
Study Group ◽  
Performance Study ◽  
Control Group Design ◽  
Academic Knowledge ◽  
Students With Ld

This study reports the effects of instruction of elementary students in a complex package of social and academic skills designed for use in cooperative groups while studying important information in inclusive general education classes. Twenty-five teachers and 519 fourth and fifth graders, including 45 students with learning disabilities (LD), participated. A pretest/posttest control-group design with random assignment was used to determine the effects of the instructional program. Data were analyzed for students with LD, all students with exceptionalities, and average-achieving (AA) students. Results indicated that experimental students’ scores on study-group performance, study-card creation, and tests of social and academic knowledge were significantly higher than control students’ scores. Furthermore, the number of prosocial behaviors and teamwork behaviors significantly increased for all subgroups of experimental students during study-group tasks, including students with LD and students with exceptionalities. Also, the number of antisocial behaviors significantly decreased for students with LD and students with exceptionalities.

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