scholarly journals Temporal Synchrony in Autism: a Systematic Review

Author(s):  
Mina Murat Baldwin ◽  
Zhuoni Xiao ◽  
Aja Murray

AbstractTemporal synchrony is the alignment of processes in time within or across individuals in social interaction and is observed and studied in various domains using wide-ranging paradigms. Evidence suggesting reduced temporal synchrony in autism (e.g. compared to neurotypicals) has hitherto not been reviewed. To systematically review the magnitude and generalisability of the difference across different tasks and contexts, EBSCO, OVID, Web of Science, and Scopus databases were searched. Thirty-two studies were identified that met our inclusion criteria in audio-visual, audio-motor, visuo-tactile, visuo-motor, social motor, and conversational synchrony domains. Additionally, two intervention studies were included. The findings suggest that autistic participants showed reduced synchrony tendencies in every category of temporal synchrony reviewed. Implications, methodological weaknesses, and evidence gaps are discussed.

2020 ◽  
Author(s):  
Mina Murat Baldwin ◽  
Zhuoni Xiao ◽  
Aja Louise Murray

A large number of studies have reported that autistic individuals show differences in their performance on temporal asynchrony tasks as compared to neurotypical individuals. Specifically, autistic individuals appear to show a reduced tendency towards synchrony. However, the evidence has hitherto not been reviewed in a systematic way, making it difficult to be sure of the magnitude and generalisability of the difference across different tasks and contexts. The present review aimed to systematically collect and synthesise the data on various types of temporal synchrony in autism across all ages in order to address this gap. A systematic search of the EBSCO, OVID, Web of Science, and Scopus databases was conducted, and the search strategies involved keywords and synonyms for “autism”, “temporal” and “synchrony”. Thirty-two studies were identified that met our inclusion criteria: 13 in the domain of audio-visual; three in audio-motor; three in visuo-tactile; three in visuo-motor; three in social motor; and five in conversational synchrony. An additional two studies focused on adapting an intervention method to improve interpersonal temporal synchrony in autistic individuals. The findings suggest that autistic participants showed reduced synchrony tendencies in every category of temporal synchrony that was reviewed. The findings are discussed in relation to existing knowledge of temporal processing and integration differences in autism. Limitations, future directions and potential clinical implications are also discussed.


2021 ◽  
pp. 030157422110195
Author(s):  
Ashish Agrawal ◽  
TM Chou

Introduction: The objective of this systematic review is to assess the effect of vibrational force on biomarkers for orthodontic tooth movement. Methods: An electronic search was conducted for relevant studies (up to December 31, 2020) on the following databases: Pubmed, Google scholar, Web of Science, Cochrane Library, Wiley Library, and ProQuest Dissertation Abstracts and Thesis database. Hand searching of selected orthodontic journals was also undertaken. The selected studies were assessed for the risk of bias in Cochrane collaboration risk of bias tool. The “traffic plot” and “weighted plot” risk of bias distribution are designed in the RoB 2 tool. The 2 authors extracted the data and analyzed it. Results: Six studies fulfilled the inclusion criteria. The risks of biases were high for 4, low and some concern for other 2 studies. The biomarkers, medium, device, frequency and duration of device, as well as other data were extracted. The outcomes of the studies were found to be heterogenous. Conclusion: One study showed highly statistically significant levels of IL-1 beta with <.001. Rate of tooth movement was correlated with levels of released biomarkers under the influence of vibrational force in 3 studies, but it was found to be significant only in 1 study. It was further observed that vibration does not have any significant reduction in pain and discomfort.


Nutrients ◽  
2021 ◽  
Vol 13 (3) ◽  
pp. 868
Author(s):  
Jorge Lorenzo Calvo ◽  
Xueyin Fei ◽  
Raúl Domínguez ◽  
Helios Pareja-Galeano

Cognitive functions are essential in any form of exercise. Recently, interest has mounted in addressing the relationship between caffeine intake and cognitive performance during sports practice. This review examines this relationship through a structured search of the databases Medline/PubMed and Web of Science for relevant articles published in English from August 1999 to March 2020. The study followed PRISMA guidelines. Inclusion criteria were defined according to the PICOS model. The identified records reported on randomized cross-over studies in which caffeine intake (as drinks, capsules, energy bars, or gum) was compared to an identical placebo situation. There were no filters on participants’ training level, gender, or age. For the systematic review, 13 studies examining the impacts of caffeine on objective measures of cognitive performance or self-reported cognitive performance were selected. Five of these studies were also subjected to meta-analysis. After pooling data in the meta-analysis, the significant impacts of caffeine only emerged on attention, accuracy, and speed. The results of the 13 studies, nevertheless, suggest that the intake of a low/moderate dose of caffeine before and/or during exercise can improve self-reported energy, mood, and cognitive functions, such as attention; it may also improve simple reaction time, choice reaction time, memory, or fatigue, however, this may depend on the research protocols.


BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Ottovon Bismark Dakurah ◽  
Cynthia Raissa Tchuem Tamandjou ◽  
Moleen Zunza ◽  
Wolfgang Preiser ◽  
Tongai Gibson Maponga

Abstract Background Hepatocellular carcinoma (HCC) is one of the leading causes of cancer-related deaths in Africa. In Africa, the major causes of HCC include chronic infection with hepatitis B virus (HBV) and/or hepatitis C virus (HCV). Knowledge of the changes in the incidence of viral hepatitis-associated HCC over time and the factors responsible for such changes is key in informing policies for the prevention of viral hepatitis-associated HCC in Africa. Aim The study aimed to systematically summarize the changes in the prevalence of viral hepatitis among HCC patients and the overall effect of the prevalence of viral hepatitis on the incidence of HCC over the past four decades in Africa (1980–2019). Methods A literature search was conducted in MEDLINE (PubMed), Google Scholar, Science Direct, Scopus, Web of Science, and African wide web for articles published on viral hepatitis-associated HCC in Africa from 1980 to 2019. The abstracts of the articles were screened for eligibility and those meeting the inclusion criteria were retrieved and reviewed. Results A total of 272 studies were included in the analysis. Viral hepatitis-related HCC incidence changed by 1.17% (95% confidence interval (CI): 0.63–1.71, p < 0.001), 0.82% (95% CI: 0.45–1.18, p < 0.001), and 3.34% (95% CI: 2.44–4.25, p < 0.001) for every 1% change in the prevalence of HBV, HCV, and hepatitis D virus (HDV) respectively, per decade. The incidence of HBV-related HCC decreased by − 0.50% (95% CI: − 0.74 – − 0.25, p < 0.001) over the last 40 years, while HCV-related HCC increased. Conclusion Overall, the incidence of viral hepatitis-associated HCC has not declined, mainly due to no decline in the prevalence of HCV, HDV, and the high number of chronic hepatitis B carriers on the African continent. There is an urgent need for the allocation of resources for the implementation of treatment and preventive programs for HBV, HCV, HDV, and HCC in Africa. This systematic review is registered with PROSPERO®, number CRD42020169723.


Foods ◽  
2021 ◽  
Vol 10 (3) ◽  
pp. 506
Author(s):  
Bernardo Romão ◽  
Ana Luísa Falcomer ◽  
Gabriela Palos ◽  
Sandra Cavalcante ◽  
Raquel Braz Assunção Botelho ◽  
...  

This study aimed to perform a systematic review and meta-analysis of the glycemic index (GI) of gluten-free bread (GFB) and its main ingredients. The systematic review followed PRISMA guidelines, using seven electronic databases (PubMed, EMBASE, Scopus, Science Direct, Web of Science, gray literature research with Google Scholar, and patents with Google Patent tool), from inception to November 2020. Eighteen studies met the inclusion criteria evaluating 132 GFB samples. Five articles tested GI in vivo, eleven in vitro; and two studies tested both methods. The analysis showed that 60.7% (95% CI: 40.2–78.1%) of the samples presented high glycemic indexes, evidencing a high glycemic profile for GFB. Only 18.2% (95% CI: 11.7–27.2%) of the bread samples presented in the studies were classified as a low GI. Meta-analysis presented moderate/low heterogenicity between studies (I2 = 61% and <1% for both high and low GIs) and reinforced the proportion of high GIs. Lower GIs were found in formulations based on Colocasia esculenta flour or enriched with fiber, yogurt and curd cheese, sourdough, psyllium, hydrocolloids, enzymes, fructans, and resistant starch, highlighting the efficacy of these ingredients to lower GFBs’ GI. GFB tends to present high GI, impacting the development of chronic diseases when consumed.


2018 ◽  
Vol 12 (2) ◽  
pp. 114-122 ◽  
Author(s):  
Angelica Miki Stein ◽  
Thays Martins Vital Silva ◽  
Flávia Gomes de Melo Coelho ◽  
Franciel José Arantes ◽  
José Luiz Riani Costa ◽  
...  

ABSTRACT One of hypothetical mechanisms related to cognition is exercise-induced IGF-1. Objective: The aim of this study was to analyze the effects of exercise on IGF-1 levels and cognition in the elderly. Methods: The article searches were conducted on Pubmed, Web of Science, PsycINFO and Scielo databases and reviewed according to PRISMA guidelines. The inclusion criteria were: [1] original articles published up to 2017; [2] samples including elderly; [3] protocols including physical exercise; [4] longitudinal studies having exercise as main outcome; [5] assessment of IGF-1; [6] cognition assessment. Results: Seven studies were included in this review. Three of the studies showed an exercise-induced increase in IGF-1; three found stable IGF-1 levels and one found a reduction in IGF-1; with and without improvement in cognition. Conclusion: Disparities in the type of physical exercise, protocols and samples under different conditions hinder the establishment of a consensus on IGF-1, cognition and physical exercise.


2018 ◽  
Vol 14 (1) ◽  
pp. 207-222 ◽  
Author(s):  
Harri Halonen ◽  
Jenna Nissinen ◽  
Heli Lehtiniemi ◽  
Tuula Salo ◽  
Pirkko Riipinen ◽  
...  

Background:A growing amount of evidence suggests that dental anxiety is associated with other psychiatric disorders and symptoms. A systematic review was conducted to critically evaluate the studies of comorbidity of dental anxiety with other specific phobias and other Axis I psychiatric disorders.Objective:The aim of the review was to explore how dental anxiety is associated with other psychiatric disorders and to estimate the level of comorbid symptoms in dental anxiety patients.Methods:The review was conducted and reported in accordance with the MOOSE statement. Data sources included PubMed, PsycInfo, Web of Science and Scopus.Results:The search produced 631 hits, of which 16 unique records fulfilled the inclusion criteria. The number of eligible papers was low. Study populations were heterogeneous including 6,486 participants, and a total of 25 tests and in few cases clinical interviews were used in the evaluation processes. The results enhanced the idea about the comorbidity between dental anxiety and other psychiatric disorders. The effect was found strong in several studies.Conclusion:Patients with a high level of dental anxiety are more prone to have a high level of comorbid phobias, depression, mood disorders and other psychiatric disorders and symptoms.


2019 ◽  
Author(s):  
Romina Vivaldi ◽  
Richard P. Jolley ◽  
Sarah E Rose

Pictorial symbols have multiple layers of meaning: not only do they represent objects, events and ideas about the world, they also represent the intentions of artists as well as other artist attributes (age, skill, originality and knowledge, mood, style and sentience). Although children’s developmental milestones of pictorial understanding have been the subject of a long-standing debate, their understanding of the relation between artists and pictures has often been neglected. The aim of this article was to conduct a systematic review on children’s and adolescents’ understanding of the relation between artists and pictures. PsycINFO and Web of Science databases were searched for English, Spanish, German, and Italian language empirical studies that examined this link in 2- to 18-year- olds. Forty-two citations (64 studies) from 14 different countries met the inclusion criteria. Results revealed the majority of the studies focused on the understanding of the artist’s intention. Although research on children’s and adolescents’ understanding of other attributes is scarce, and there were inconsistencies across the methodologies used, it seems that they first acknowledge intention and only later become more aware of how artist’s attributes are communicated through intention. The results of the review encourage subsequent research to provide a clearer conceptualised model of child and adolescent understanding of the artist-picture relationship. Such a model should be placed within a wider framework of the network of relationship between the artist, picture, world and beholder. Finally, consideration of how the development of understanding the artist-picture relationship is bi-directionally influenced with other developmental milestones in the child psychology is encouraged, particularly picture-production and theory of mind, and variations in atypical populations.


2021 ◽  
Vol 45 (6) ◽  
pp. 1016-1030
Author(s):  
Hanizah Mohd Yusoff ◽  
Hanani Nabilah Mohd Sobri ◽  
Vevya Sundaram

Objectives: The aim of this systematic review was to identify factors influencing workers' intention to work while ill, using the Theory of Planned Behavior (TPB) as a theoretical framework. Methods: A systematic search of articles was carried out from PubMed, Scopus, and Web of Science databases. Eligibility of each article was assessed using PRISMA guidelines. Overall, 22 articles met the inclusion criteria after the selection process and were included in this review. Results: The factors fit into 3 constructs: (1) attitude (good and bad consequences of working while ill), (2) subjective norms (descriptive and injunctive norms on working while ill), and (3) perceived behavioral control (facilitators and barriers of working while ill). Conclusions: The TPB is a practical theory to conceptualize and understand the factors influencing workers' intention to work while ill. These findings provide initial knowledge on the development of a framework to measure workers' intention to work while ill and to propose appropriate interventions for workers with chronic illness.


2021 ◽  
pp. 014556132110565
Author(s):  
Ibrahim AlAwadh ◽  
Ahmad Bogari ◽  
Turki Azhar ◽  
Nada AlTaylouni ◽  
Naif AlSughier ◽  
...  

Objective Body dysmorphic disorder (BDD) represents a bridge between the fields of psychiatry and cosmetic surgery. It is a psychiatric disorder involving altered body image and has been associated with cosmetic surgery. Many studies have investigated BDD following rhinoplasty. However, their findings were inconsistent, which prompted us to conduct this systematic review to obtain strong evidence about the prevalence of BDD among rhinoplasty candidates. Methods We searched the literature using electronic databases such as PubMed, Scopus, Web of Science, and others using keywords relevant to the study outcomes. We also manually examined the references of the included studies and relevant reviews to look for articles that might have been missed during the electronic search. Results Nine articles met the inclusion criteria. We identified 7 other relevant articles; since they had been included in a review conducted in 2016, they were not included in the final list of articles. However, they were included in the discussion, and their findings have been compared with ours. The included articles resulted in a total sample of 712 rhinoplasty candidates. The estimated prevalence rates of BDD in these articles ranged from 22% to 52%, which was considered high by all the authors of the included studies. Conclusion The prevalence of BDD among rhinoplasty candidates is high, and adequate management and interventions are needed to reduce it.


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