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Utilising Behavioural and Sensory Profiles and Associated Perinatal Factors to Identify Meaningful Subgroups in Autism Spectrum DisorderThe heterogeneity of autism spectrum disorder clinically and aetiologically hinders intervention matching and prediction of outcomes. This study investigated if the behavioural, sensory, and perinatal factor profiles of autistic children could be used to identify distinct subgroups. Participants on the autism spectrum aged 2 to 17 years and their families were sourced via the Australian Autism Biobank.
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An investigation of a novel broad autism phenotype: increased facial masculinity among parents of children on the autism spectrumThe broad autism phenotype commonly refers to sub-clinical levels of autistic-like behaviour and cognition presented in biological relatives of autistic people. In a recent study, we reported findings suggesting that the broad autism phenotype may also be expressed in facial morphology, specifically increased facial masculinity.
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Eye Gaze in Autism Spectrum Disorder: A Review of Neural Evidence for the Eye Avoidance HypothesisReduced eye contact early in life may play a role in the developmental pathways that culminate in a diagnosis of autism spectrum disorder. However, there are contradictory theories regarding the neural mechanisms involved. According to the amygdala theory of autism, reduced eye contact results from a hypoactive amygdala that fails to flag eyes as salient. However, the eye avoidance hypothesis proposes the opposite-that amygdala hyperactivity causes eye avoidance. This review evaluated studies that measured the relationship between eye gaze and activity in the 'social brain' when viewing facial stimuli.
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Temperament in individuals with Autism Spectrum Disorder: A systematic reviewThe study of temperament in Autism Spectrum Disorder (ASD) has the potential to provide insight regarding variability in the onset, nature, and course of both core and co-morbid symptoms. The aim of this systematic review was to integrate existing findings concerning temperament in the context of ASD. Searches of Medline, PsychInfo and Scopus databases identified 64 relevant studies. As a group, children and adolescents with ASD appear to be temperamentally different from both typically developing and other clinical non-ASD groups, characterized by higher negative affectivity, lower surgency, and lower effortful control at a higher-order level.
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Developmental vitamin D deficiency increases foetal exposure to testosteroneAutism spectrum disorder (ASD) is a group of neurodevelopmental disorders which are more common in males. The 'prenatal sex steroid' hypothesis links excessive sex-steroid exposure during foetal life with the behavioural differences observed in ASD. However, the reason why sex steroid exposure may be excessive remains unclear. Epidemiological studies have identified several environmental risk factors associated with ASD, including developmental vitamin D (DVD) deficiency.
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Experiences of Parents of Specialist Peer Mentored Autistic University StudentsParents continue to support to autistic university students, and consequently, experience considerable stress. The aim was to explore the experiences of parents of specialist peer mentored university students and to examine these using the ICF as a theoretical framework.
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Prevalence of Motor Difficulties in Autism Spectrum Disorder: Analysis of a Population-Based CohortIn this population-based cohort that included 2,084 children with autism aged ≤6 years, over one-third met the criteria for motor difficulties
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A national guideline for the assessment and diagnosis of autism spectrum disorders in AustraliaThe Guideline aims to create greater consistency in diagnostic practices across the country to ensure individuals on the autism spectrum can receive the optimal care
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Mothers of Children with Autism have Different Rates of Cancer According to the Presence of Intellectual Disability in Their ChildMothers of children with autism without ID had increased risk of cancer, which may relate to common genetic pathways
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Maternal pre-pregnancy weight and autistic-like traits among offspring in the general populationThis study provides further evidence that maternal pre-pregnancy obesity is associated with autism-like behaviors in offspring