J. Hallmayer

Publications131
h-index47
Citations10,667
Highly Influential Citations479
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Genetic heritability and shared environmental factors among twin pairs with autism.
CONTEXT Autism is considered the most heritable of neurodevelopmental disorders, mainly because of the large difference in concordance rates between monozygotic and dizygotic twins. OBJECTIVE To… Expand
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Perinatal factors and the development of autism: a population study.
BACKGROUND Autism is considered to have a genetic basis, although exposure to certain stimuli in the prenatal period has been implicated to be causal in some cases. Some investigations have shown an… Expand
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SHANK3 and IGF1 restore synaptic deficits in neurons from 22q13 deletion syndrome patients
Phelan–McDermid syndrome (PMDS) is a complex neurodevelopmental disorder characterized by global developmental delay, severely impaired speech, intellectual disability, and an increased risk of… Expand
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A genomic screen of autism: evidence for a multilocus etiology.
We have conducted a genome screen of autism, by linkage analysis in an initial set of 90 multiplex sibships, with parents, containing 97 independent affected sib pairs (ASPs), with follow-up in 49… Expand
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The relationship between motor coordination, executive functioning and attention in school aged children.
Given the high level of comorbidity of attention deficit hyperactivity disorder (ADHD) and developmental coordination disorder (DCD), deficits in executive function (EF), shown to be present in… Expand
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HPA Axis Reactivity: A Mechanism Underlying the Associations Among 5-HTTLPR, Stress, and Depression
BACKGROUND Recent evidence indicates that individuals who are homozygous for the short (s) allele in the promoter region of the serotonin transporter gene have higher rates of depression and other… Expand
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Using self-report to identify the broad phenotype in parents of children with autistic spectrum disorders: a study using the Autism-Spectrum Quotient.
BACKGROUND The concept of the 'broad phenotype' of autism refers to the finding that relatives of people with autism often have mild forms of autistic-like characteristics, such as social and… Expand
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Support for association of schizophrenia with genetic variation in the 6p22.3 gene, dysbindin, in sib-pair families with linkage and in an additional sample of triad families.
Genetic variants in a gene on 6p22.3, dysbindin, have been shown recently to be associated with schizophrenia (Straub et al. 2002a). There is no doubt that replication in other independent samples… Expand
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Immunology: Hepatitis A virus link to atopic disease
Atopic diseases, including asthma, allergic rhinitis and atopic dermatitis, are caused by both environmental and genetic factors. Here we show that infection by hepatitis A virus (HAV) may protect… Expand
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Plasma oxytocin concentrations and OXTR polymorphisms predict social impairments in children with and without autism spectrum disorder
Significance The neuropeptide oxytocin (OXT) is critically involved in mammalian social functioning, and initial clinical research suggests that OXT biology may be altered in individuals with autism… Expand
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