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Autism and environment

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https://www.readbyqxmd.com/read/28734102/are-electromagnetic-fields-in-incubators-a-risk-factor-for-autism
#1
Carlo V Bellieni, Giuseppe Buonocore
Hugo Lagercrantz recently argued (1) that a possible cause of infantile autism was the unnatural isolation that babies experienced in neonatal incubators. Atypical brain connectivity has been detected in children with autism and it is possible that this may be also due to environmental factors, including the lack of physiological stimuli that is typically found in the incubator environment. We suggest that also another factor may expose babies in incubators to the risk of developing autistic traits and that is the high electromagnetic fields (EMF) produced by the incubator's electric engine...
July 22, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28717229/investigation-of-autistic-traits-through-strategic-decision-making-in-games-with-adaptive-agents
#2
Alexis B Craig, Emily Grossman, Jeffrey L Krichmar
Autism Spectrum Disorders are characterized by difficulties in communicating and cooperating with other people. Impairment in Theory of Mind (ToM), the ability to infer what another person is thinking, may contribute to these social deficits. The present study assesses the relationship between autistic traits and decision-making in a socioeconomic game environment that measures ToM and cooperation. We quantified participant strategy during game play with computer agents that simulated aspects of ToM or fixed strategy agents with static behaviors or heuristics...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28704690/joint-attention-and-oromotor-abilities-in-young-children-with-and-without-autism-spectrum-disorder
#3
Jennifer C Dalton, Elizabeth R Crais, Shelley L Velleman
PURPOSE: This study examined the relationship between joint attention ability and oromotor imitation skill in three groups of young children with and without Autism Spectrum Disorder using both nonverbal oral and verbal motor imitation tasks. Research questions addressed a) differences among joint attention and oromotor imitation abilities; b) the relationship between independently measured joint attention and oromotor imitation, both nonverbal oral and verbal motor; c) the relationships between joint attention and verbal motor imitation during interpersonal interaction; and d) the relationship between the sensory input demands (auditory, visual, and tactile) and oromotor imitation, both nonverbal oral and verbal motor...
July 1, 2017: Journal of Communication Disorders
https://www.readbyqxmd.com/read/28703319/brain-carnitine-deficiency-causes-nonsyndromic-autism-with-an-extreme-male-bias-a-hypothesis
#4
REVIEW
Arthur L Beaudet
Could 10-20% of autism be prevented? We hypothesize that nonsyndromic or "essential" autism involves extreme male bias in infants who are genetically normal, but they develop deficiency of carnitine and perhaps other nutrients in the brain causing autism that may be amenable to early reversal and prevention. That brain carnitine deficiency might cause autism is suggested by reports of severe carnitine deficiency in autism and by evidence that TMLHE deficiency - a defect in carnitine biosynthesis - is a risk factor for autism...
July 13, 2017: BioEssays: News and Reviews in Molecular, Cellular and Developmental Biology
https://www.readbyqxmd.com/read/28703063/caring-for-children-with-autism-spectrum-condition-in-paediatric-emergency-departments
#5
Ben Richards
The needs of children with autism spectrum condition (ASC) in paediatric emergency departments (EDs) can often be overlooked. EDs are high-stress environments for children with ASC, which can result in meltdowns, making the diagnostic process challenging. There should be provision for children with ASC, who can have sensory, behavioural and communication needs, in the same way that analgesia is provided for children in pain. This article promotes a multi-strategy approach to making reasonable adjustments to help meet the needs of these children and provide them with a positive hospital experience...
July 13, 2017: Emergency Nurse: the Journal of the RCN Accident and Emergency Nursing Association
https://www.readbyqxmd.com/read/28691500/factors-associated-with-sustained-community-employment-among-adults-with-autism-and-co-occurring-intellectual-disability
#6
Wai Chan, Leann E Smith, Jinkuk Hong, Jan S Greenberg, Julie Lounds Taylor, Marsha R Mailick
Sustaining community employment is a challenge for adults with autism spectrum disorders, especially for those who have co-occurring intellectual disability, but factors contributing to this employment outcome have not been fully evaluated. This study utilized longitudinal data to explore the impact of contextual influences, family factors, and individual characteristics on sustained employment over approximately 18 months ( N = 105). Very few adults with autism spectrum disorder and intellectual disability achieved sustained employment (14...
July 1, 2017: Autism: the International Journal of Research and Practice
https://www.readbyqxmd.com/read/28685411/how-to-implement-robots-in-interventions-for-children-with-autism-a-co-creation-study-involving-people-with-autism-parents-and-professionals
#7
Claire A G J Huijnen, Monique A S Lexis, Rianne Jansens, Luc P de Witte
The aim of this study was to gain insight into how robots can be practically implemented into current education and therapy interventions for children with autism spectrum disorder (ASD). This qualitative study included focus groups and co-creation sessions. 73 Participants (professionals and adults with ASD) took part in 13 focus groups to elicit requirements for robot assisted interventions. Additionally, 22 participants (professionals, parents of children with ASD and adults with ASD) generated ideas for interventions using robot KASPAR in three co-creation sessions...
July 6, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28681355/impaired-redox-control-in-autism-spectrum-disorders-could-it-be-the-x-in-gxe
#8
REVIEW
Vanja Mandic-Maravic, Marija Pljesa-Ercegovac, Marija Mitkovic-Voncina, Ana Savic-Radojevic, Dusica Lecic-Tosevski, Tatjana Simic, Milica Pejovic-Milovancevic
PURPOSE OF REVIEW: This review aims to provide a brief description of the complex etiology of autism spectrum disorders (ASD), with special emphasis on the recent findings of impaired redox control in ASD, and to suggest a possible model of oxidative stress-specific gene-environment interaction in this group of disorders. RECENT FINDINGS: Recent findings point out to the significance of environmental, prenatal, and perinatal factors in ASD but, at the same time, are in favor of the potentially significant oxidative stress-specific gene-environment interaction in ASD...
August 2017: Current Psychiatry Reports
https://www.readbyqxmd.com/read/28673909/physiological-mechanisms-underlying-animal-social-behaviour
#9
Frank Seebacher, Jens Krause
Many species of animal live in groups, and the group represents the organizational level within which ecological and evolutionary processes occur. Understanding these processes, therefore, relies on knowledge of the mechanisms that permit or constrain group formation. We suggest that physiological capacities and differences in physiology between individuals modify fission-fusion dynamics. Differences between individuals in locomotor capacity and metabolism may lead to fission of groups and sorting of individuals into groups with similar physiological phenotypes...
August 19, 2017: Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences
https://www.readbyqxmd.com/read/28664633/participation-of-children-on-the-autism-spectrum-in-home-school-and-community
#10
K Simpson, D Keen, D Adams, C Alston-Knox, J Roberts
BACKGROUND: Children on the autism spectrum participate less frequently, and in a narrower range of activities, than their nonautistic peers, but little is known about exact participation patterns across contexts or how this is perceived by caregivers. This study aimed to document patterns of participation and caregiver views with regard to frequency and intensity of activities. METHOD: Caregivers of children on the spectrum aged 5 (n = 90) and 9-10 years (n = 128) completed the Participation and Environment Measure for Children and Youth for home, school, and community...
June 29, 2017: Child: Care, Health and Development
https://www.readbyqxmd.com/read/28662698/mov10-suppresses-retroelements-and-regulates-neuronal-development-and-function-in-the-developing-brain
#11
Geena Skariah, Joseph Seimetz, Miles Norsworthy, Monica C Lannom, Phillip J Kenny, Mohamed Elrakhawy, Craig Forsthoefel, Jenny Drnevich, Auinash Kalsotra, Stephanie Ceman
BACKGROUND: Moloney leukemia virus 10 (Mov10) is an RNA helicase that mediates access of the RNA-induced silencing complex to messenger RNAs (mRNAs). Until now, its role as an RNA helicase and as a regulator of retrotransposons has been characterized exclusively in cell lines. We investigated the role of Mov10 in the mouse brain by examining its expression over development and attempting to create a Mov10 knockout mouse. Loss of both Mov10 copies led to early embryonic lethality. RESULTS: Mov10 was significantly elevated in postnatal murine brain, where it bound retroelement RNAs and mRNAs...
June 29, 2017: BMC Biology
https://www.readbyqxmd.com/read/28661385/caregivers-perspectives-on-the-sensory-environment-and-participation-in-daily-activities-of-children-with-autism-spectrum-disorder
#12
Beth Pfeiffer, Wendy Coster, Gretchen Snethen, Maggie Derstine, Aimee Piller, Carole Tucker
The purpose of this phenomenological study was to obtain caregivers' perspectives on the impact of the sensory environment on participation in daily activities of their young children with autism spectrum disorders (ASD). Interviews were completed with 34 caregivers of children with ASD ages 3-7 yr. Results strongly suggest that parents and caregivers were pivotal in enabling participation for their children through the implementation of specific strategies and a parental decision-making process. The decision-making process considered amount of effort necessary to support participation and whether participation in a given activity was perceived as essential or nonessential...
July 2017: American Journal of Occupational Therapy: Official Publication of the American Occupational Therapy Association
https://www.readbyqxmd.com/read/28655565/environmental-enrichment-attenuates-behavioral-abnormalities-in-valproic-acid-exposed-autism-model-mice
#13
Hiroshi Yamaguchi, Yuta Hara, Yukio Ago, Erika Takano, Shigeru Hasebe, Takanobu Nakazawa, Hitoshi Hashimoto, Toshio Matsuda, Kazuhiro Takuma
We recently demonstrated that prenatal exposure to valproic acid (VPA) at embryonic day 12.5 causes autism spectrum disorder (ASD)-like phenotypes such as hypolocomotion, anxiety-like behavior, social deficits and cognitive impairment in mice and that it decreases dendritic spine density in the hippocampal CA1 region. Previous studies show that some abnormal behaviors are improved by environmental enrichment in ASD rodent models, but it is not known whether environmental enrichment improves cognitive impairment...
June 24, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28625682/are-circadian-rhythms-new-pathways-to-understand-autism-spectrum-disorder
#14
M-M Geoffray, A Nicolas, M Speranza, N Georgieff
Autism Spectrum Disorder (ASD) is a frequent neurodevelopmental disorder. ASD is probably the result of intricate interactions between genes and environment altering progressively the development of brain structures and functions. Circadian rhythms are a complex intrinsic timing system composed of almost as many clocks as there are body cells. They regulate a variety of physiological and behavioral processes such as the sleep-wake rhythm. ASD is often associated with sleep disorders and low levels of melatonin...
June 19, 2017: Journal of Physiology, Paris
https://www.readbyqxmd.com/read/28604031/spontaneous-gaze-selection-and-following-during-naturalistic-social-interactions-in-school-aged-children-and-adolescents-with-autism-spectrum-disorder
#15
Elina Birmingham, Krista Haley Smith Johnston, Grace Iarocci
Using a novel naturalistic paradigm allowing participants the freedom to spontaneously select and follow gaze cues in their environment, this study extends previous research conducted with younger children to determine whether school-age children with autism spectrum disorder (ASD, n = 17) demonstrate abnormal gaze following relative to typically developing (TD, n = 15) children. The participant and experimenter played a series of games, during which the experimenter pseudorandomly averted her gaze toward a social target (person) or a nonsocial target (object)...
June 12, 2017: Canadian Journal of Experimental Psychology, Revue Canadienne de Psychologie Expérimentale
https://www.readbyqxmd.com/read/28578790/the-role-of-interneurons-in-autism-and-tourette-syndrome
#16
REVIEW
Maximiliano Rapanelli, Luciana Romina Frick, Christopher Pittenger
The brain includes multiple types of interconnected excitatory and inhibitory neurons that together allow us to move, think, feel, and interact with the environment. Inhibitory interneurons (INs) comprise a small, heterogeneous fraction, but they exert a powerful and tight control over neuronal activity and consequently modulate the magnitude of neuronal output and, ultimately, information processing. IN abnormalities are linked to two pediatric psychiatric disorders with high comorbidity: autism spectrum disorder (ASD) and Tourette syndrome (TS)...
July 2017: Trends in Neurosciences
https://www.readbyqxmd.com/read/28567415/neurodevelopmental-disorders-and-environmental-toxicants-epigenetics-as-an-underlying-mechanism
#17
REVIEW
Nguyen Quoc Vuong Tran, Kunio Miyake
The increasing prevalence of neurodevelopmental disorders, especially autism spectrum disorders (ASD) and attention deficit hyperactivity disorder (ADHD), calls for more research into the identification of etiologic and risk factors. The Developmental Origin of Health and Disease (DOHaD) hypothesizes that the environment during fetal and childhood development affects the risk for many chronic diseases in later stages of life, including neurodevelopmental disorders. Epigenetics, a term describing mechanisms that cause changes in the chromosome state without affecting DNA sequences, is suggested to be the underlying mechanism, according to the DOHaD hypothesis...
2017: International Journal of Genomics
https://www.readbyqxmd.com/read/28562251/reducing-information-s-speed-improves-verbal-cognition-and-behavior-in-autism-a-2-cases-report
#18
Carole Tardif, Laura Latzko, Thomas Arciszewski, Bruno Gepner
According to the temporal theory of autism spectrum disorders (ASDs), audiovisual changes in environment, particularly those linked to facial and verbal language, are often too fast to be faced, perceived, and/or interpreted online by many children with ASD, which could help explain their facial, verbal, and/or socioemotional interaction impairments. Our goal here was to test for the first time the impact of slowed-down audiovisual information on verbal cognition and behavior in 2 boys with ASD and verbal delay...
May 3, 2017: Pediatrics
https://www.readbyqxmd.com/read/28560650/effects-of-learning-strategy-training-on-the-writing-performance-of-college-students-with-asperger-s-syndrome
#19
Lynn G Jackson, Mary Lou Duffy, Michael P Brady, Jazarae McCormick
Individuals with autism spectrum disorders (ASD) are increasingly entering institutions of higher education. However, many are not prepared for the academic and social demands of postsecondary environments. Although studies have evaluated academic and social interventions for children and adolescents with ASD, little research exists on the college population. The current study utilized a multiple baseline across participants design to evaluate the effectiveness of a writing learning strategy on the writing performance of three college students with ASD...
May 30, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28551756/extracerebral-dysfunction-in-animal-models-of-autism-spectrum-disorder
#20
Elisa L Hill-Yardin, Sonja J McKeown, Gaia Novarino, Andreas M Grabrucker
Genetic factors might be largely responsible for the development of autism spectrum disorder (ASD) that alone or in combination with specific environmental risk factors trigger the pathology. Multiple mutations identified in ASD patients that impair synaptic function in the central nervous system are well studied in animal models. How these mutations might interact with other risk factors is not fully understood though. Additionally, how systems outside of the brain are altered in the context of ASD is an emerging area of research...
2017: Advances in Anatomy, Embryology, and Cell Biology
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