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https://www.readbyqxmd.com/read/29777730/understanding-facial-expressivity-in-autism-spectrum-disorder-an-inside-out-review-of-the-biological-basis-and-clinical-implications
#1
REVIEW
Stephen I Deutsch, C Teal Raffaele
Deficits in decoding and understanding facially expressed emotions occur commonly in persons with autism spectrum disorder (ASD), which contribute to the impairment of social communication that serves as one of its core diagnostic criteria. Research suggests that abnormalities of visual scanning of the face, activation of key nodes within the "social brain" by facially expressed emotions, functional connectivity within and between nodes of the "social brain", and transduction of specific neurotransmitter/neuromodulatory signals contribute to the pathogenesis of these deficits in at least some persons with ASD...
May 16, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29777472/circumscribed-interests-and-attention-in-autism-the-role-of-biological-sex
#2
Clare Harrop, Desiree Jones, Shuting Zheng, Sallie Nowell, Brian A Boyd, Noah Sasson
Recent studies suggest that circumscribed interests (CI) in females with Autism Spectrum Disorder (ASD) may align more closely with interests reported in typical female development than those typically reported for ASD males. We used eye-tracking to quantify attention to arrays containing combinations of male, female and neutral images in elementary-aged males and females with and without ASD. A number of condition × sex effects emerged, with both groups attending to images that corresponded with interests typically associated with their biological sex...
May 18, 2018: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/29777471/the-association-between-emotional-and-behavioral-problems-in-children-with-autism-spectrum-disorder-and-psychological-distress-in-their-parents-a-systematic-review-and-meta-analysis
#3
Isabel Yorke, Pippa White, Amelia Weston, Monica Rafla, Tony Charman, Emily Simonoff
This review (Prospero Registration Number: CRD42017057915) aimed to systematically identify and summarize existing research on the relationship between additional emotional and behavioral problems (EBP) in children with autism, and parenting stress (PS) and mental health problems (MHP) in their parents. Sixty-seven studies met criteria for inclusion in the review, 61 of which were included in the meta-analysis. Pooled correlation coefficients were in the low to moderate range ([Formula: see text]). Some evidence for moderation by measurement characteristics was found...
May 18, 2018: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/29775702/abnormal-sleep-architecture-and-hippocampal-circuit-dysfunction-in-a-mouse-model-of-fragile-x-syndrome
#4
Christine E Boone, Heydar Davoudi, Jon B Harrold, David J Foster
Fragile X syndrome (FXS) is the most common heritable cause of intellectual disability and single-gene cause of autism spectrum disorder. The Fmr1 null mouse models much of the human disease including hyperarousal, sensory hypersensitivity, seizure activity, and hippocampus-dependent cognitive impairment. Sleep architecture is disorganized in FXS patients, but has not been examined in Fmr1 knockout (Fmr1-KO) mice. Hippocampal neural activity during sleep, which is implicated in memory processing, also remains uninvestigated in Fmr1-KO mice...
May 15, 2018: Neuroscience
https://www.readbyqxmd.com/read/29775078/effects-of-a-parent-implemented-developmental-reciprocity-treatment-program-for-children-with-autism-spectrum-disorder
#5
Grace W Gengoux, Salena Schapp, Sarah Burton, Christina M Ardel, Robin A Libove, Gina Baldi, Kari L Berquist, Jennifer M Phillips, Antonio Y Hardan
Developmental approaches to autism treatment aim to establish strong interpersonal relationships through joint play. These approaches have emerging empirical support; however, there is a need for further research documenting the procedures and demonstrating their effectiveness. This pilot study evaluated changes in parent behavior and child autism symptoms following a 12-week Developmental Reciprocity Treatment parent-training program. A total of 22 children with autism spectrum disorder between 2 and 6 years (mean age = 44...
May 1, 2018: Autism: the International Journal of Research and Practice
https://www.readbyqxmd.com/read/29774571/clustering-and-variable-selection-in-the-presence-of-mixed-variable-types-and-missing-data
#6
C B Storlie, S M Myers, S K Katusic, A L Weaver, R G Voigt, P E Croarkin, R E Stoeckel, J D Port
We consider the problem of model-based clustering in the presence of many correlated, mixed continuous, and discrete variables, some of which may have missing values. Discrete variables are treated with a latent continuous variable approach, and the Dirichlet process is used to construct a mixture model with an unknown number of components. Variable selection is also performed to identify the variables that are most influential for determining cluster membership. The work is motivated by the need to cluster patients thought to potentially have autism spectrum disorder on the basis of many cognitive and/or behavioral test scores...
May 17, 2018: Statistics in Medicine
https://www.readbyqxmd.com/read/29774525/teaching-social-perception-skills-to-adolescents-with-autism-and-intellectual-disabilities-using-video-based-group-instruction
#7
Tiffany A Stauch, Joshua B Plavnick, Sudha Sankar, Annie C Gallagher
Few interventions focus on teaching social skills to adolescents with autism spectrum disorder (ASD) and intellectual disabilities (ID) that are consistently used during interactions with peers ( Carter et al., 2014). The present study evaluated the effects of video-based group instruction (VGI) on the acquisition of social perception skills of five adolescents with ASD or ID in a public school setting. Social perception involves observing affective behaviors of others, discriminating relevant environmental stimuli, and differentially reinforcing the affective behavior of another person...
May 17, 2018: Journal of Applied Behavior Analysis
https://www.readbyqxmd.com/read/29774230/early-vocal-development-in-autism-spectrum-disorder-rett-syndrome-and-fragile-x-syndrome-insights-from-studies-using-retrospective-video-analysis
#8
Laura Roche, Dajie Zhang, Katrin D Bartl-Pokorny, Florian B Pokorny, Björn W Schuller, Gianluca Esposito, Sven Bölte, Herbert Roeyers, Luise Poustka, Markus Gugatschka, Hannah Waddington, Ralf Vollmann, Christa Einspieler, Peter B Marschik
This article provides an overview of studies assessing the early vocalisations of children with autism spectrum disorder (ASD), Rett syndrome (RTT), and fragile X syndrome (FXS) using retrospective video analysis (RVA) during the first two years of life. Electronic databases were systematically searched and a total of 23 studies were selected. These studies were then categorised according to whether children were later diagnosed with ASD (13 studies), RTT (8 studies), or FXS (2 studies), and then described in terms of (a) participant characteristics, (b) control group characteristics, (c) video footage, (d) behaviours analysed, and (e) main findings...
March 2018: Advances in Neurodevelopmental Disorders
https://www.readbyqxmd.com/read/29774207/overview-of-social-cognitive-dysfunctions-in-rare-developmental-syndromes-with-psychiatric-phenotype
#9
REVIEW
Aurore Morel, Elodie Peyroux, Arnaud Leleu, Emilie Favre, Nicolas Franck, Caroline Demily
Rare neurodevelopmental syndromes often present social cognitive deficits that may underlie difficulties in social interactions and increase the risk of psychosis or autism spectrum disorders. However, little is known regarding the specificities of social cognitive impairment across syndromes while it remains a major challenge for the care. Our review provides an overview of social cognitive dysfunctions in rare diseases associated with psychiatric symptoms (with a prevalence estimated between 1 in 1,200 and 1 in 25,000 live births: 22q11...
2018: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29773950/could-autism-be-associated-with-nutritional-status-in-the-palestinian-population-the-outcomes-of-the-palestinian-micronutrient-survey
#10
Mohammad Altamimi
Background: Autism spectrum disorder is a neurodevelopmental disorder. It is believed that the cause of autism is multifactorial, where genetic predispositions interact with environmental factors. In this context, micronutrients play a crucial role. Objective: To present evidence on current micronutrient status in Palestine and highlight its possible role in increasing problems of neurodevelopment disorders in general and autism in particular. Method: Analytical review of results...
2018: Nutrition and Metabolic Insights
https://www.readbyqxmd.com/read/29773920/effects-of-emergent-literacy-interventions-for-preschoolers-with-autism-spectrum-disorder
#11
Roxanne F Hudson, Elizabeth A Sanders, Rosanne Greenway, Sharon Xie, Maya Smith, Colin Gasamis, Jay Martini, Ilene Schwartz, Jacob Hackett
Combining data from a series of three planned, consecutive independent randomized controlled trials (RCTs), the present study investigates two literacy interventions for preschool children with autism spectrum disorder (ASD). For the first cohort, children were randomized to interactive book reading treatment (IBR)or a business-as-usual (BAU) control condition; in Cohort 2, children were randomized to phonological awareness treatment (PA)or BAU; in Cohort 3, children were randomized to IBR or PA. Both treatments were implemented weekly in the classroom from November to May...
October 2017: Exceptional Children
https://www.readbyqxmd.com/read/29772935/the-effects-of-literacy-interventions-on-single-word-reading-for-individuals-who-use-aided-aac-a-systematic-review
#12
Kelsey Mandak, Janice Light, Susannah Boyle
The purpose of this systematic review was to investigate the effects of instruction on single-word reading of individuals who use aided augmentative and alternative communication (AAC). A systematic search identified nine single-case experimental design studies that involved 24 individuals who used aided AAC. Overall, the evidence indicated that instruction had positive effects on reading at the single-word level for individuals across ages and diagnostic categories (i.e., autism spectrum disorder (ASD), cerebral palsy (CP), Down syndrome, and intellectual disability)...
May 18, 2018: Augmentative and Alternative Communication: AAC
https://www.readbyqxmd.com/read/29771335/loss-of-fragile-x-protein-fmrp-impairs-homeostatic-synaptic-downscaling-through-tumor-suppressor-p53-and-ubiquitin-e3-ligase-nedd4-2
#13
Kwan Young Lee, Kathryn A Jewett, Hee Jung Chung, Nien-Pei Tsai
Synaptic scaling allows neurons to homeostatically readjust synaptic strength upon chronic neural activity perturbations. Although altered synaptic scaling has been implicated to underlie imbalanced brain excitability in neurological disorders such as autism spectrum disorders and epilepsy, the molecular dysregulation and restoration of synaptic scaling in those diseases have not been demonstrated. Here, we showed that the homeostatic synaptic downscaling is absent in the hippocampal neurons of Fmr1 KO mice, the mouse model of the most common inherited autism, Fragile X Syndrome (FXS)...
May 16, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29771287/term-or-preterm-cesarean-section-delivery-does-not-lead-to-long-term-detrimental-consequences-in-mice
#14
Morgane Chiesa, Damien Guimond, Roman Tyzio, Alexandre Pons-Bennaceur, Natalia Lozovaya, Nail Burnashev, Diana C Ferrari, Yehezkel Ben-Ari
Epidemiological studies have provided contradictory data on the deleterious sequels of cesarean section (C-section) delivery and their links with developmental brain disorders such as Autism Spectrum Disorders. To gain better insight on these issues, we have now compared physiological, morphological, and behavioral parameters in vaginal, term, and preterm C-section delivered mice. We report that C-section delivery does not lead to long-term behavioral alterations though preterm C-section delivery modifies communicative behaviors in pups...
May 16, 2018: Cerebral Cortex
https://www.readbyqxmd.com/read/29771286/local-cortical-gyrification-is-increased-in-children-with-autism-spectrum-disorders-but-decreases-rapidly-in-adolescents
#15
Jiwandeep S Kohli, Mikaela K Kinnear, Christopher H Fong, Inna Fishman, Ruth A Carper, Ralph-Axel Müller
Extensive MRI evidence indicates early brain overgrowth in autism spectrum disorders (ASDs). Local gyrification may reflect the distribution and timing of aberrant cortical expansion in ASDs. We examined MRI data from (Study 1) 64 individuals with ASD and 64 typically developing (TD) controls (7-19 years), and from (Study 2) an independent sample from the Autism Brain Imaging Data Exchange (n = 31/group). Local Gyrification Index (lGI), cortical thickness (CT), and surface area (SA) were measured. In Study 1, differences in lGI (ASD > TD) were found in left parietal and temporal and right frontal and temporal regions...
May 16, 2018: Cerebral Cortex
https://www.readbyqxmd.com/read/29770430/nr4a2-haploinsufficiency-is-associated-with-intellectual-disability-and-autism-spectrum-disorder
#16
J Lévy, S Grotto, C Mignot, C Dupont, A Delahaye, B Benzacken, B Keren, D Haye, J Xavier, M Heulin, E Charles, A Verloes, A Maruani, E Pipiras, A-C Tabet
NR4A2, a member of the nuclear receptor superfamily, is involved in modulation of target gene transcription, regulating several developmental processes such as regulation of cellular homeostasis, neuronal development, inflammation and carcinogenesis. 2q24.1 deletions are extremely rare and only one patient with a de novo deletion encompassing only NR4A2 gene was reported so far. We report three additional patients with a de novo deletion encompassing NR4A2: two patients have deletions encompassing only NR4A2 gene and one patient has a deletion including NR4A2 and the first exon of GPD2...
May 16, 2018: Clinical Genetics
https://www.readbyqxmd.com/read/29769579/hla-class-ii-haplotypes-and-autism-spectrum-disorders
#17
Meriem Bennabi, Alexandru Gaman, Richard Delorme, Wahid Boukouaci, Céline Manier, Isabelle Scheid, Nassima Si Mohammed, Djaouida Bengoufa, Dominique Charron, Rajagopal Krishnamoorthy, Marion Leboyer, Ryad Tamouza
Infections and autoimmunity are associated with autism spectrum disorders (ASD), with both strongly influenced by the genetic regulation of the human leukocyte antigen (HLA) system. The relationship between ASD and the HLA genetic diversity requires further investigation. Using a case control design, the distribution of HLA class II-DRB1 and DQB1 alleles, genotypes and haplotypes were investigated in ASD patients, versus healthy controls (HC). ASD patients meeting DSM-IV TR criteria and HC (474 and 350 respectively) were genotyped at medium resolution using a Luminex-based SSO technology...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29768199/the-autism-related-protein-chd8-cooperates-with-c-ebp%C3%AE-to-regulate-adipogenesis
#18
Yasuyuki Kita, Yuta Katayama, Taichi Shiraishi, Takeru Oka, Tetsuya Sato, Mikita Suyama, Yasuyuki Ohkawa, Keishi Miyata, Yuichi Oike, Michiko Shirane, Masaaki Nishiyama, Keiichi I Nakayama
The gene encoding the chromatin remodeler CHD8 is the most frequently mutated gene in individuals with autism spectrum disorder (ASD). Heterozygous mutations in CHD8 give rise to ASD that is often accompanied by macrocephaly, gastrointestinal complaints, and slender habitus. Whereas most phenotypes of CHD8 haploinsufficiency likely result from delayed neurodevelopment, the mechanism underlying slender habitus has remained unknown. Here, we show that CHD8 interacts with CCAAT/enhancer-binding protein β (C/EBPβ) and promotes its transactivation activity during adipocyte differentiation...
May 15, 2018: Cell Reports
https://www.readbyqxmd.com/read/29767824/variability-in-verbal-and-nonverbal-communication-in-infants-at-risk-for-autism-spectrum-disorder-predictors-and-outcomes
#19
M Franchini, E Duku, V Armstrong, J Brian, S E Bryson, N Garon, W Roberts, C Roncadin, L Zwaigenbaum, I M Smith
Early communication impairment is among the most-reported first concerns in parents of young children with autism spectrum disorder (ASD). Using a parent-report questionnaire, we derived trajectory groups for early language and gesture acquisition in siblings at high risk for ASD and in children at low risk, during their first 2 years of life. Developmental skills at 6 months were associated with trajectory group membership representing growth in receptive language and gestures. Behavioral symptoms also predicted gesture development...
May 16, 2018: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/29767376/evaluating-the-effectiveness-of-an-autism-specific-workplace-tool-for-employers-a-randomised-controlled-trial
#20
Melissa Scott, Marita Falkmer, Torbjörn Falkmer, Sonya Girdler
A randomised controlled trial evaluated the effectiveness of the Integrated Employment Success Tool (IEST™) in improving employers' self-efficacy in modifying the workplace for individuals on the autism spectrum. Employers (N = 84) were randomised to the IEST™ or support as usual groups. Measurements of self-efficacy, knowledge and attitudes towards disability in the workplace were obtained at baseline and post-test. Results revealed a significant improvement in self-efficacy within the IEST™ group between baseline and post-test (p = 0...
May 16, 2018: Journal of Autism and Developmental Disorders
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