keyword
MENU ▼
Read by QxMD icon Read
search

Autism and environment

keyword
https://www.readbyqxmd.com/read/28625682/are-circadian-rhythms-new-pathways-to-understand-autism-spectrum-disorder
#1
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 15, 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
#2
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
#3
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)...
May 31, 2017: Trends in Neurosciences
https://www.readbyqxmd.com/read/28567415/neurodevelopmental-disorders-and-environmental-toxicants-epigenetics-as-an-underlying-mechanism
#4
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
#5
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
#6
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
#7
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
https://www.readbyqxmd.com/read/28544911/arianna-a-research-environment-for-neuroimaging-studies-in-autism-spectrum-disorders
#8
Alessandra Retico, Silvia Arezzini, Paolo Bosco, Sara Calderoni, Alberto Ciampa, Simone Coscetti, Stefano Cuomo, Luca De Santis, Dario Fabiani, Maria Evelina Fantacci, Alessia Giuliano, Enrico Mazzoni, Pietro Mercatali, Giovanni Miscali, Massimiliano Pardini, Margherita Prosperi, Francesco Romano, Elena Tamburini, Michela Tosetti, Filippo Muratori
The complexity and heterogeneity of Autism Spectrum Disorders (ASD) require the implementation of dedicated analysis techniques to obtain the maximum from the interrelationship among many variables that describe affected individuals, spanning from clinical phenotypic characterization and genetic profile to structural and functional brain images. The ARIANNA project has developed a collaborative interdisciplinary research environment that is easily accessible to the community of researchers working on ASD (https://arianna...
May 17, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28531286/is-foetal-hyperexposure-to-androgens-a-cause-of-pcos
#9
Panagiota Filippou, Roy Homburg
BACKGROUND: Polycystic ovary syndrome (PCOS) is the most common endocrinopathy affecting reproductive-aged women. The pathophysiology of this syndrome is still not completely understood but recent evidence suggests that the intra-uterine environment may be a key factor in the pathogenesis of PCOS, in particular, hyperexposure of the foetus to androgens. High concentrations of maternal serum testosterone during pregnancy have been shown to influence behaviour during childhood, the prevalence of autism disorders and anti-Mullerian hormone (AMH) concentrations in adolescence...
May 20, 2017: Human Reproduction Update
https://www.readbyqxmd.com/read/28521245/the-light-from-above-prior-is-intact-in-autistic-children
#10
Abigail Croydon, Themelis Karaminis, Louise Neil, David Burr, Elizabeth Pellicano
Sensory information is inherently ambiguous. The brain disambiguates this information by anticipating or predicting the sensory environment based on prior knowledge. Pellicano and Burr (2012) proposed that this process may be atypical in autism and that internal assumptions, or "priors," may be underweighted or less used than in typical individuals. A robust internal assumption used by adults is the "light-from-above" prior, a bias to interpret ambiguous shading patterns as if formed by a light source located above (and slightly to the left) of the scene...
September 2017: Journal of Experimental Child Psychology
https://www.readbyqxmd.com/read/28484738/hippocampus-dependent-goal-localization-by-head-fixed-mice-in-virtual-reality
#11
Masaaki Sato, Masako Kawano, Kotaro Mizuta, Tanvir Islam, Min Goo Lee, Yasunori Hayashi
The demonstration of the ability of rodents to navigate in virtual reality (VR) has made it an important behavioral paradigm for studying spatially modulated neuronal activity in these animals. However, their behavior in such simulated environments remains poorly understood. Here, we show that encoding and retrieval of goal location memory in mice head-fixed in VR depends on the postsynaptic scaffolding protein Shank2 and the dorsal hippocampus. In our newly developed virtual cued goal location task, a head-fixed mouse moves from one end of a virtual linear track to seek rewards given at a target location along the track...
May 2017: ENeuro
https://www.readbyqxmd.com/read/28475976/the-association-of-environmental-toxicants-and-autism-spectrum-disorders-in-children
#12
REVIEW
Bi Su Ye, Anna Oi Wah Leung, Ming Hung Wong
Autism spectrum disorders (ASDs) is a set of complex neurodevelopment disorders that is prevalent in children and is increasing at a steady rate in recent years. However, the etiology of autism is still poorly understood. Humans are at higher risk of chemical exposure than in the past as a result of the increasing usage of chemicals in various fields, including food preservation, agriculture, industrial production, etc. A number of environmental agents have been suggested as contributing factors to ASD pathogenesis, which includes heavy metals (Hg and Pb), persistent organic pollutants (DDT, PBDEs and PCBs) and emerging chemicals of concern (phthalates and BPA)...
August 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28474794/variable-sensory-perception-in-autism
#13
Sarah M Haigh
Autism is associated with sensory and cognitive abnormalities. Individuals with autism generally show normal or superior early sensory processing abilities compared to healthy controls, but deficits in complex sensory processing. In the current opinion paper, it will be argued that sensory abnormalities impact cognition by limiting the amount of signal that can be used to interpret and interact with environment. There is a growing body of literature showing that individuals with autism exhibit greater trial-to-trial variability in behavioural and cortical sensory responses...
May 5, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28469641/dysregulation-of-neurogenesis-by-neuroinflammation-key-differences-in-neurodevelopmental-and-neurological-disorders
#14
REVIEW
Lir-Wan Fan, Yi Pang
Embryonic neurogenesis is the process of generating neurons, the functional units of the brain. Because of its sensitivity to adverse intrauterine environment such as infection, dysregulation of this process has emerged as a key mechanism underlying many neurodevelopmental disorders such as autism spectrum disorders (ASD). Adult neurogenesis, although is restricted to a few neurogenic niches, plays pivotal roles in brain plasticity and repair. Increasing evidence suggests that impairments in adult neurogenesis are involved in major neurodegenerative disorders such as Alzheimer's disease...
March 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28452080/autism-a-transdiagnostic-dimensional-construct-of-reasoning
#15
REVIEW
Bodil Aggernaes
The concept of autism has changed across time, from the Bleulerian concept, which defined it as one of several symptoms of dementia praecox, to the present-day concept representing a pervasive development disorder. The present theoretical contribution to this special issue of EJN on autism introduces new theoretical ideas and discusses them in light of selected prior theories, clinical examples, and recent empirical evidence. The overall aim is to identify some present challenges of diagnostic practice and autism research and to suggest new pathways that may help direct future research...
April 27, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28448694/the-joint-effect-of-air-pollution-exposure-and-copy-number-variation-on-risk-for-autism
#16
Dokyoon Kim, Heather Volk, Santhosh Girirajan, Sarah Pendergrass, Molly A Hall, Shefali S Verma, Rebecca J Schmidt, Robin L Hansen, Debashis Ghosh, Yunin Ludena-Rodriguez, Kyoungmi Kim, Marylyn D Ritchie, Irva Hertz-Picciotto, Scott B Selleck
Autism spectrum disorder is a complex trait with a high degree of heritability as well as documented susceptibility from environmental factors. In this study the contributions of copy number variation, exposure to air pollutants, and the interaction between the two on autism risk, were evaluated in the population-based case-control Childhood Autism Risks from Genetics and Environment (CHARGE) Study. For the current investigation, we included only those CHARGE children (a) who met criteria for autism or typical development and (b) for whom our team had conducted both genetic evaluation of copy number burden and determination of environmental air pollution exposures based on mapping addresses from the pregnancy and early childhood...
April 27, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/28448681/autism-too-eager-to-learn-event-related-potential-findings-of-increased-dependency-on-intentional-learning-in-a-serial-reaction-time-task
#17
Fenny S Zwart, Constance Th W M Vissers, Roemer van der Meij, Roy P C Kessels, Joseph H R Maes
It has been suggested that people with autism spectrum disorder (ASD) have an increased tendency to use explicit (or intentional) learning strategies. This altered learning may play a role in the development of the social communication difficulties characterizing ASD. In the current study, we investigated incidental and intentional sequence learning using a Serial Reaction Time (SRT) task in an adult ASD population. Response times and event related potentials (ERP) components (N2b and P3) were assessed as indicators of learning and knowledge...
April 27, 2017: Autism Research: Official Journal of the International Society for Autism Research
https://www.readbyqxmd.com/read/28439605/effectiveness-of-a-preparatory-aid-in-facilitating-oral-assessment-in-a-group-of-saudi-children-with-autism-spectrum-disorders-in-central-saudi-arabia
#18
Ebtissam Z Murshid
To evaluate the effectiveness of a specially-designed dental book (preparatory aid) on the behavior of a group of Autism Spectrum Disorder (ASD) Saudi children during their first dental visit to the College of Dentistry, King Saud University, Riyadh, Saudi Arabia. Methods: A cross-sectional double-blinded pre-and post clinical study consisting of 2 parts; a survey targeting the parents, and a clinical oral examination of their ASD children was conducted between January and June of 2016.  Results: A total of 40 children (75% males and 25% females) with an average age of 6...
May 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28433088/parental-age-and-offspring-psychopathology-in-the-philadelphia-neurodevelopmental-cohort
#19
Alison K Merikangas, Monica E Calkins, Warren B Bilker, Tyler M Moore, Ruben C Gur, Raquel E Gur
OBJECTIVE: Increasing evidence implicates advanced paternal age at offspring birth in neuropsychiatric disorders. Advanced maternal age has also been associated with schizophrenia and other neurodevelopmental disorders, whereas younger maternal age has been linked with behavioral disorders. Few studies have considered the specificity of the associations with respect to comorbidity. In addition, most prior studies have been conducted in clinical samples or registries that may reflect more severe forms of psychopathology...
May 2017: Journal of the American Academy of Child and Adolescent Psychiatry
https://www.readbyqxmd.com/read/28433087/paternal-age-alters-social-development-in-offspring
#20
Magdalena Janecka, Claire M A Haworth, Angelica Ronald, Eva Krapohl, Francesca Happé, Jonathan Mill, Leonard C Schalkwyk, Cathy Fernandes, Abraham Reichenberg, Frühling Rijsdijk
OBJECTIVE: Advanced paternal age (APA) at conception has been linked with autism and schizophrenia in offspring, neurodevelopmental disorders that affect social functioning. The current study explored the effects of paternal age on social development in the general population. METHOD: We used multilevel growth modeling to investigate APA effects on socioemotional development from early childhood until adolescence, as measured by the Strengths and Difficulties Questionnaire (SDQ) in the Twins Early Development Study (TEDS) sample...
May 2017: Journal of the American Academy of Child and Adolescent Psychiatry
keyword
keyword
48862
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"