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https://www.readbyqxmd.com/read/28730732/shared-atypical-default-mode-and-salience-network-functional-connectivity-between-autism-and-schizophrenia
#1
Heng Chen, Lucina Q Uddin, Xujun Duan, Junjie Zheng, Zhiliang Long, Youxue Zhang, Xiaonan Guo, Yan Zhang, Jingping Zhao, Huafu Chen
Schizophrenia and autism spectrum disorder (ASD) are two prevalent neurodevelopmental disorders sharing some similar genetic basis and clinical features. The extent to which they share common neural substrates remains unclear. Resting-state fMRI data were collected from 35 drug-naïve adolescent participants with first-episode schizophrenia (15.6 ± 1.8 years old) and 31 healthy controls (15.4 ± 1.6 years old). Data from 22 participants with ASD (13.1 ± 3.1 years old) and 21 healthy controls (12...
July 21, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/28729065/neural-circuits-for-social-cognition-implications-for-autism
#2
REVIEW
Marta Fernández, Irene Mollinedo-Gajate, Olga Peñagarikano
Social neuroscience, the study of the neurobiological basis of social behavior, has become a major area of current research in behavioral neuroscience and psychiatry, since many psychiatric disorders are characterized by social deficits. Social behavior refers to the behavioral response with regards to socially relevant information, and requires the perception and integration of social cues through a complex cognition processes (i.e. social cognition) that involves attention, memory, motivation and emotion...
July 17, 2017: Neuroscience
https://www.readbyqxmd.com/read/28720891/whole-exome-sequencing-reveals-inherited-and-de-novo-variants-in-autism-spectrum-disorder-a-trio-study-from-saudi-families
#3
Bashayer Al-Mubarak, Mohamed Abouelhoda, Aisha Omar, Hesham AlDhalaan, Mohammed Aldosari, Michael Nester, Hussain A Alshamrani, Mohamed El-Kalioby, Ewa Goljan, Renad Albar, Shazia Subhani, Asma Tahir, Sultana Asfahani, Alaa Eskandrani, Ahmed Almusaiab, Amna Magrashi, Jameela Shinwari, Dorota Monies, Nada Al Tassan
Autism spectrum disorder (ASD) is a complex neurodevelopmental disorder with genetic and clinical heterogeneity. The interplay of de novo and inherited rare variants has been suspected in the development of ASD. Here, we applied whole exome sequencing (WES) on 19 trios from singleton Saudi families with ASD. We developed an analysis pipeline that allows capturing both de novo and inherited rare variants predicted to be deleterious. A total of 47 unique rare variants were detected in 17 trios including 38 which are newly discovered...
July 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28716727/systematic-review-and-meta-analysis-links-autism-and-toxic-metals-and-highlights-the-impact-of-country-development-status-higher-blood-and-erythrocyte-levels-for-mercury-and-lead-and-higher-hair-antimony-cadmium-lead-and-mercury
#4
REVIEW
Amene Saghazadeh, Nima Rezaei
BACKGROUND: Autism spectrum disorder (ASD) is a heterogeneous neurodevelopmental disorder that affects cognitive and higher cognitive functions. Increasing prevalence of ASD and high rates of related comorbidities has caused serious health loss and placed an onerous burden on the supporting families, caregivers, and health care services. Heavy metals are among environmental factors that may contribute to ASD. However, due to inconsistencies across studies, it is still hard to explain the association between ASD and toxic metals...
July 14, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28715786/background-lead-and-mercury-exposures-psychological-and-behavioral-problems-in-children
#5
Brooks B Gump, Matthew J Dykas, James A MacKenzie, Amy K Dumas, Bryce Hruska, Craig K Ewart, Patrick J Parsons, Christopher D Palmer, Kestutis Bendinskas
BACKGROUND: The potential harm from exposure to nonessential metals, particularly mercury (Hg) and lead (Pb), has been the focus of research for years. Initial interest focused on relatively high exposures; however, recent evidence suggests that even background exposures might have adverse consequences for child development. Identifying the extent of these consequences is now a priority. METHODS: We assessed blood Pb and Hg levels in a biracial sample of 9-11 year-old children (N = 203)...
July 14, 2017: Environmental Research
https://www.readbyqxmd.com/read/28714321/zoophilia-in-an-adolescent-with-high-functioning-autism-from-sri-lanka
#6
Miyuru Chandradasa, Layani Champika
OBJECTIVE: Zoophilia is a rare paraphilic disorder with intense sexual urges involving animals. Autism is characterised by impairments in social communication and repetitive, restricted behaviours (RRB). Reported cases of zoophilia are limited worldwide, and zoophilia in autism is rarer. METHOD: This is a case report describing this unique and relatively unrecognised association in a male adolescent from Sri Lanka. RESULTS: A 17-year-old boy diagnosed with autism has average intelligence and academic capabilities...
July 1, 2017: Australasian Psychiatry: Bulletin of Royal Australian and New Zealand College of Psychiatrists
https://www.readbyqxmd.com/read/28701745/a-single-dose-randomized-controlled-proof-of-mechanism-study-of-a-novel-vasopressin-1a-receptor-antagonist-rg7713-in-high-functioning-adults-with-autism-spectrum-disorder
#7
Daniel Umbricht, Marta Del Valle Rubido, Eric Hollander, James T McCracken, Frederick Shic, Lawrence Scahill, Jana Noeldeke, Lauren Boak, Omar Khwaja, Lisa Squassante, Christophe Grundschober, Heidemarie Kletzl, Paulo Fontoura
This corrects the article DOI: 10.1038/npp.2016.232.
August 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28700096/peak-alpha-frequency-is-a-neural-marker-of-cognitive-function-across-the-autism-spectrum
#8
Abigail Dickinson, Charlotte DiStefano, Damla Senturk, Shafali Spurling Jeste
Cognitive function varies substantially and serves as a key predictor of outcome and response to intervention in autism spectrum disorder (ASD), yet we know little about the neurobiological mechanisms that underlie cognitive function in children with ASD. The dynamics of neuronal oscillations in the alpha range (6-12 Hz) are associated with cognition in typical development. Peak alpha frequency is also highly sensitive to developmental changes in neural networks which underlie cognitive function, and therefore it holds promise as a developmentally-sensitive neural marker of cognitive function in ASD...
July 12, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28699052/young-adults-on-the-autism-spectrum-at-college-successes-and-stumbling-blocks
#9
Connie Anderson, Catherine Butt
There is limited information on outcomes for young adults with autism spectrum disorder (ASD), including achievement at college. Qualitative interviews were conducted with 18 families reporting a degree-seeking college experience for their young adult with ASD. Interview transcripts were analyzed using a grounded theory approach. Four themes surrounding success and failure at college emerged. Preparation Beyond Academics involved challenges associated with ASD, such as social, executive functioning, and mental health issues, and to what extent these had been addressed prior to leaving high school...
July 11, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28695417/a-fiber-tractography-study-of-social-emotional-related-fiber-tracts-in-children-and-adolescents-with-autism-spectrum-disorder
#10
Yun Li, Hui Fang, Wenming Zheng, Lu Qian, Yunhua Xiao, Qiaorong Wu, Chen Chang, Chaoyong Xiao, Kangkang Chu, Xiaoyan Ke
The symptoms of autism spectrum disorder (ASD) have been hypothesized to be caused by changes in brain connectivity. From the clinical perspective, the "disconnectivity" hypothesis has been used to explain characteristic impairments in "socio-emotional" function. Therefore, in this study we compared the facial emotional recognition (FER) feature and the integrity of social-emotional-related white-matter tracts between children and adolescents with high-functioning ASD (HFA) and their typically developing (TD) counterparts...
July 10, 2017: Neuroscience Bulletin
https://www.readbyqxmd.com/read/28690570/social-cognition-in-children-with-high-functioning-autism-spectrum-disorder-and-attention-deficit-hyperactivity-disorder-associations-with-executive-functions
#11
Ana Miranda, Carmen Berenguer, Belén Roselló, Inmaculada Baixauli, Carla Colomer
Autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD) are neurodevelopmental disorders characterized by social impairments. The first objective of this study was to analyze social cognition deficits of children with ADHD, high-functioning ASD (HFASD), and typical development (TD) in their performance on explicit and applied measures of theory of mind (ToM). The second objective was to investigate the relationships between executive functions and social cognition in HFASD and ADHD...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28688078/differences-in-neural-correlates-of-speech-perception-in-3-month-olds-at-high-and-low-risk-for-autism-spectrum-disorder
#12
Laura A Edwards, Jennifer B Wagner, Helen Tager-Flusberg, Charles A Nelson
In this study, we investigated neural precursors of language acquisition as potential endophenotypes of autism spectrum disorder (ASD) in 3-month-old infants at high and low familial ASD risk. Infants were imaged using functional near-infrared spectroscopy while they listened to auditory stimuli containing syllable repetitions; their neural responses were analyzed over left and right temporal regions. While female low risk infants showed initial neural activation that decreased over exposure to repetition-based stimuli, potentially indicating a habituation response to repetition in speech, female high risk infants showed no changes in neural activity over exposure...
July 7, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28685398/developmental-changes-in-pretend-play-from-22-to-34-months-in-younger-siblings-of-children-with-autism-spectrum-disorder
#13
Susan B Campbell, Amanda S Mahoney, Jessie Northrup, Elizabeth L Moore, Nina B Leezenbaum, Celia A Brownell
Developmental trajectories of children's pretend play and social engagement, as well as parent sensitivity and stimulation, were examined in toddlers with an older sibling with autism spectrum disorder (ASD, high risk; HR) and toddlers with typically-developing older siblings (low risk; LR). Children (N = 168, 97 boys, 71 girls) were observed at 22, 28, and 34 months during free play with a parent and elicited pretend play with an examiner. At 28 and 34 months, children were asked to imagine the consequences of actions pantomimed by the examiner on a pretend transformation task...
July 7, 2017: Journal of Abnormal Child Psychology
https://www.readbyqxmd.com/read/28684307/discriminant-validity-of-spatial-and-temporal-postural-index-in-children-with-neurodevelopmental-disorders
#14
Maria Pia Bucci, Nathalie Goulème, Coline Stordeur, Eric Acquaviva, Isabelle Scheid, Aline Lefebvre, Christophe-Loïc Gerard, Hugo Peyre, Richard Delorme
Autism, learning disabilities and attention deficit/hyperactive disorder are often comorbid disorders. In order to try and find some markers that might be transnosographic, we hypothesized that abnormal postural sway profiles may discriminate children with neurodevelopmental disorders (NDDs) from typically developing children. The aim of our study was thus to compare spatial and temporal measures of the Center of Pressure in three distinct groups of children with NDDs (high functioning autism spectrum disorders, learning disabilities (dyslexia) and attention deficit/hyperactive disorders) and in typically developing children...
July 3, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28683568/the-effect-of-being-imitated-on-empathy-for-pain-in-adults-with-high-functioning-autism-disturbed-self-other-distinction-leads-to-altered-empathic-responding
#15
Lize De Coster, Jan R Wiersema, Eliane Deschrijver, Marcel Brass
Autism spectrum disorder is a neurodevelopmental disorder that is associated with problems in empathy. Recent research suggests that impaired control over self-other overlap based on motor representations in individuals with autism spectrum disorder might underlie these difficulties. In order to investigate the relationship of self-other distinction and empathy for pain in high-functioning autism and matched controls, we manipulated self-other distinction by using a paradigm in which participants are either imitated or not by a hand on a computer screen...
June 1, 2017: Autism: the International Journal of Research and Practice
https://www.readbyqxmd.com/read/28680259/anxiety-levels-in-children-with-autism-spectrum-disorder-a-meta-analysis
#16
Francisca J A van Steensel, Emma J Heeman
The aim of the current study was to meta-analytically examine whether anxiety levels in children with autism spectrum disorders (ASD) are elevated. A total of 83 articles were selected from a systematic literature search and were included in the meta-analyses. Results demonstrated that children with ASD had higher anxiety levels compared to typically developing children, and this difference increased with IQ. Youth with ASD also tended to have higher anxiety levels compared to clinically referred children, and this difference increased with age...
2017: Journal of Child and Family Studies
https://www.readbyqxmd.com/read/28677689/brain-network-dynamics-in-high-functioning-individuals-with-autism
#17
Takamitsu Watanabe, Geraint Rees
Theoretically, autism should be underpinned by aberrant brain dynamics. However, how brain activity changes over time in individuals with autism spectrum disorder (ASD) remains unknown. Here we characterize brain dynamics in autism using an energy-landscape analysis applied to resting-state fMRI data. Whereas neurotypical brain activity frequently transits between two major brain states via an intermediate state, high-functioning adults with ASD show fewer neural transitions due to an unstable intermediate state, and these infrequent transitions predict the severity of autism...
July 5, 2017: Nature Communications
https://www.readbyqxmd.com/read/28670707/radiosynthesis-and-evaluation-of-1-substituted-3-2-3-dihydro-1h-inden-2-yl-6-1-ethylpropyl-3r-6r-2-5-piperazinedione-derivatives-as-pet-tracers-for-imaging-the-central-oxytocinergic-system
#18
Carmine Marzano, Steen Jacobsen, Cristian Salinas, Sac Pham Tang, Dirk Bender, Jan Passchier, Christophe Plisson
Oxytocin is known to be implicated in a variety of functions, such as learning, stress, anxiety, feeding and pain perception. Oxytocin is also important for social memory and attachment, human bonding, sexual and maternal behaviour, and aggression. Human disorders characterized by aberrant social interactions, such as autism and schizophrenia, may also involve abnormal oxytocin levels. GSK712043, GSK711320 and GSK664004, three antagonists exhibiting sub-nanomolar affinity for the human oxytocin receptor (hOTR) and high selectivity over vasopressin receptors were successfully labelled with carbon-11 with suitable yields (0...
July 3, 2017: Journal of Labelled Compounds & Radiopharmaceuticals
https://www.readbyqxmd.com/read/28670123/intelligence-profiles-of-chinese-school-aged-boys-with-high-functioning-asd-and-adhd
#19
Gaizhi Li, Wenqing Jiang, Yasong Du, Kathryn Rossbach
PURPOSE: This study aimed to explore the intelligence profiles of Chinese school-aged boys with high-functioning autism spectrum disorder (HFASD) and attention-deficit/hyperactivity disorder (ADHD). Additionally, differences in intelligence quotient (IQ) between the HFASD group and the ADHD group were examined. PATIENTS AND METHODS: Thirty-two boys with HFASD, 58 boys with ADHD, and 39 typically developing (TD) boys aged 6-16 years participated in this study. The ADHD group was divided into subgroups: ADHD-I (predominantly inattentive) and ADHD-C (combined type)...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/28661076/identification-of-lateralized-compensatory-neural-activities-within-the-social-brain-due-to-autism-spectrum-disorder-in-adolescent-males
#20
Vigneshwaran Subbaraju, Suresh Sundaram, Sundararajan Narasimhan
Socio-behavioral impairments are important characteristics of Autism Spectrum Disorders (ASD) and MRI based studies are pursued to identify a neurobiological basis behind these conditions. This paper presents an MRI based study undertaken to (i) identify the differences in brain activities due to ASD, (ii) verify whether such differences exist within the "social brain" circuit which is hypothesized to be responsible for social functions and (iii) uncover potential compensatory mechanisms within the identified differences in brain activities...
June 29, 2017: European Journal of Neuroscience
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