1. {{A Randomized, Double-Blind Comparison of Atomoxetine and Placebo on Response Inhibition and Interference Control in Children and Adolescents With Autism Spectrum Disorder and Comorbid Attention-Deficit/Hyperactivity Disorder Symptoms}}. {Journal of clinical psychopharmacology}. 2013 Sep 6.
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2. Courty A, Maria AS, Lalanne C, Ringuenet D, Vindreau C, Chevallier C, Pouga L, Pinabel F, Philippe A, Adrien JL, Barry C, Berthoz S. {{Levels of autistic traits in anorexia nervosa: a comparative psychometric study}}. {BMC psychiatry}. 2013 Sep 10;13(1):222.
BACKGROUND: A number of characteristics associated with Autism Spectrum Disorders (ASD) are over-represented among patients with Anorexia Nervosa (AN) as well as among relatives of these patients. Yet the co-occurrence of autistic traits in AN has not been fully explored and no previous study has directly compared self-reported evaluations of cognitive and socio-affective skills in AN and ASD. METHODS: We aimed to determine the degree of overlap between AN and ASD from scores on questionnaires classically used to measure ASD impairments. Fifteen AN participants, 15 ASD participants and two groups of matched controls completed a battery of self-reports measuring: autistic traits (Autism-Spectrum Quotient), empathy (Empathy Quotient-short and Interpersonal Reactivity Index), systemizing (Systemizing Quotient-short) and alexithymia (Bermond-Vorst Alexithymia Questionnaire-B). Univariate comparisons of mean totalled scores were performed on each measure (patients vs. controls, and AN vs. ASD), and a Principal Component Analysis was used to study subject proximities in a reduced-factor space constructed from AQ, BVAQ and IRI subscales. RESULTS: These analyses revealed similarities in a few cognitive domains (Attention Switching, Perspective Taking and Fantasy, lack of emotional introspection) and in some nonspecific affective dimensions (depression and feelings of distress), but also marked dissimilarities in social skills (the ability to communicate emotions to others, empathizing). CONCLUSION: The AN and ASD participants reported similar needs for sameness, and similar difficulties understanding their emotions and taking the perspective of another, but contrasting abilities to feel concerned in interpersonal situations. Our mixed findings encourage further exploration of transdiagnostic similarities and associations between these disorders.
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3. Dalsgaard S, Nielsen HS, Simonsen M. {{Five-Fold Increase in National Prevalence Rates of Attention-Deficit/Hyperactivity Disorder Medications for Children and Adolescents with Autism Spectrum Disorder, Attention-Deficit/Hyperactivity Disorder, and other Psychiatric Disorders: A Danish Register-Based Study}}. {Journal of child and adolescent psychopharmacology}. 2013 Sep 9.
Abstract Objective: The purpose of this study was to estimate the prevalence and time trends in prescriptions of methylphenidate, dexamphetamine, and atomoxetine in children and adolescents, within three diagnostic groups: 1) autism spectrum disorder (ASD), 2) attention-deficit/hyperactivity disorder (ADHD), and 3) other psychiatric disorders. Methods: Data from six different national registers were used and merged to identify a cohort of all children and adolescents born in Denmark between 1990 and 2001 (n=852,711). Sociodemographic covariates on cohort members and their parents and lifetime prescriptions of methylphenidate, dexamphetamine, and atomoxetine were extracted from the registers. Prescriptions were also stratified by duration (<6 months. vs.>/=6 months). Results: Sixteen percent of 9698 children and adolescents with ASD (n=1577), 61% of 11,553 children and adolescents with ADHD (n=7021) and 3% of 48,468 children and adolescents with other psychiatric disorders (n=1537) were treated with one or more ADHD medications. There was a significant increase in prescription rates of these medications for all three groups. From 2003 to 2010, youth 6-13 years of age with ASD, ADHD, and other psychiatric disorders had 4.7-fold (4.4-4.9), 6.3-fold (6.0-6.4), and 5.5-fold (5.0-5.9) increases, respectively, in prescription rates of ADHD medications. Conclusion: This is the largest study to date assessing stimulant treatment in children and adolescents with ASD, and is the first prospective study quantifying the change over time in the prevalence of treatment with ADHD medications in a population-based national cohort of children and adolescents with ASD. The prevalence of stimulant treatment in youth with ASD of 16% is consistent with earlier studies. The past decade has witnessed a clear and progressive increase in the prescription rates of medications typically used to treat ADHD in children and adolescents in Denmark. This increase is not limited to only those with ADHD, but includes others with neuropsychiatric disorders, including ASD. The risks and benefits of this practice await further study.
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4. Davidson MM, Ellis Weismer S. {{Characterization and Prediction of Early Reading Abilities in Children on the Autism Spectrum}}. {J Autism Dev Disord}. 2013 Sep 11.
Many children with autism spectrum disorder (ASD) have reading profiles characterized by higher decoding skills and lower reading comprehension. This study assessed whether this profile was apparent in young children with ASD and examined concurrent and longitudinal predictors of early reading. A discrepant profile of reading (higher alphabet and lower meaning) was found in 62 % of this sample. Concurrent analyses revealed that reading proficiency was associated with higher nonverbal cognition and expressive language, and that social ability was negatively related to alphabet knowledge. Nonverbal cognition and expressive language at mean age 2(1/2) years predicted later reading performance at mean age 5(1/2) years. These results support the importance of early language skills as a foundation for reading in children with ASD.
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5. Frazier TW, Ratliff KR, Gruber C, Zhang Y, Law PA, Constantino JN. {{Confirmatory factor analytic structure and measurement invariance of quantitative autistic traits measured by the Social Responsiveness Scale-2}}. {Autism}. 2013 Sep 9.
Understanding the factor structure of autistic symptomatology is critical to the discovery and interpretation of causal mechanisms in autism spectrum disorder. We applied confirmatory factor analysis and assessment of measurement invariance to a large (N = 9635) accumulated collection of reports on quantitative autistic traits using the Social Responsiveness Scale, representing a broad diversity of age, severity, and reporter type. A two-factor structure (corresponding to social communication impairment and restricted, repetitive behavior) as elaborated in the updated Diagnostic and Statistical Manual of Mental Disorders (5th ed.; DSM-5) criteria for autism spectrum disorder exhibited acceptable model fit in confirmatory factor analysis. Measurement invariance was appreciable across age, sex, and reporter (self vs other), but somewhat less apparent between clinical and nonclinical populations in this sample comprised of both familial and sporadic autism spectrum disorders. The statistical power afforded by this large sample allowed relative differentiation of three factors among items encompassing social communication impairment (emotion recognition, social avoidance, and interpersonal relatedness) and two factors among items encompassing restricted, repetitive behavior (insistence on sameness and repetitive mannerisms). Cross-trait correlations remained extremely high, that is, on the order of 0.66-0.92. These data clarify domains of statistically significant factoral separation that may relate to partially-but not completely-overlapping biological mechanisms, contributing to variation in human social competency. Given such robust intercorrelations among symptom domains, understanding their co-emergence remains a high priority in conceptualizing common neural mechanisms underlying autistic syndromes.
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6. Lind SE, Williams DM, Bowler DM, Peel A. {{Episodic Memory and Episodic Future Thinking Impairments in High-Functioning Autism Spectrum Disorder: An Underlying Difficulty With Scene Construction or Self-Projection?}}. {Neuropsychology}. 2013 Sep 9.
Objective: There appears to be a common network of brain regions that underlie the ability to recall past personal experiences (episodic memory) and the ability to imagine possible future personal experiences (episodic future thinking). At the cognitive level, these abilities are thought to rely on « scene construction » (the ability to bind together multimodal elements of a scene in mind-dependent on hippocampal functioning) and temporal « self-projection » (the ability to mentally project oneself through time-dependent on prefrontal cortex functioning). Although autism spectrum disorder (ASD) is characterized by diminished episodic memory, it is unclear whether episodic future thinking is correspondingly impaired. Moreover, the underlying basis of such impairments (difficulties with scene construction, self-projection, or both) is yet to be established. The current study therefore aimed to elucidate these issues. Method: Twenty-seven intellectually high-functioning adults with ASD and 29 age- and IQ-matched neurotypical comparison adults were asked to describe (a) imagined atemporal, non-self-relevant fictitious scenes (assessing scene construction), (b) imagined plausible self-relevant future episodes (assessing episodic future thinking), and (c) recalled personally experienced past episodes (assessing episodic memory). Tests of narrative ability and theory of mind were also completed. Results: Performances of participants with ASD were significantly and equally diminished in each condition and, crucially, this diminution was independent of general narrative ability. Conclusions: Given that participants with ASD were impaired in the fictitious scene condition, which does not involve self-projection, we suggest the underlying difficulty with episodic memory/future thinking is one of scene construction. (PsycINFO Database Record (c) 2013 APA, all rights reserved).
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7. Rossi CC, Fuentes J, Van de Water J, Amaral DG. {{Brief Report: Antibodies Reacting to Brain Tissue in Basque Spanish Children with Autism Spectrum Disorder and Their Mothers}}. {J Autism Dev Disord}. 2013 Sep 11.
Previous investigations found that a subset of children with autism spectrum disorder (ASD) in California possessed plasma autoantibodies that reacted intensely with brain interneurons or other neural profiles. Moreover, for several cohorts of American women, maternal autoantibody reactivity to specific fetal brain proteins was highly specific to mothers of children with ASD. We sought to determine whether children and their mothers from a regionally specific cohort from the Basque Country of Spain demonstrated similar reactivity. Some children’s plasma reacted to interneurons, beaded axons or other neural profiles with no difference in the occurrence of these antibodies in children with or without ASD. Findings on the maternal antibodies confirmed previous research; plasma reactivity to fetal brain a combination of proteins at 37 and 73 kDa or 39 and 73 kDa was found exclusively in mothers of children with ASD.
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8. Siniscalco D, Cirillo A, Bradstreet JJ, Antonucci N. {{Epigenetic findings in autism: new perspectives for therapy}}. {International journal of environmental research and public health}. 2013;10(9):4261-73.
Autism and autism spectrum disorders (ASDs) are complex neurodevelopmental disorders characterized by dysfunctions in social interactions, communications, restricted interests, and repetitive stereotypic behaviors. Despite extensive genetic and biological research, significant controversy surrounds our understanding of the specific mechanisms of their pathogenesis. However, accumulating evidence points to the involvement of epigenetic modifications as foundational in creating ASD pathophysiology. Epigenetic modifications or the alteration of DNA transcription via variations in DNA methylation and histone modifications but without alterations in the DNA sequence, affect gene regulation. These alterations in gene expression, obtained through DNA methylation and/or histone modifications, result from transcriptional regulatory influences of environmental factors, such as nutritional deficiencies, various toxicants, immunological effects, and pharmaceuticals. As such these effects are epigenetic regulators which determine the final biochemistry and physiology of the individual. In contrast to psychopharmacological interventions, bettering our understanding of how these gene-environmental interactions create autistic symptoms should facilitate the development of therapeutic targeting of gene expression for ASD biomedical care.
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9. Stadnick NA, Drahota A, Brookman-Frazee L. {{Parent Perspectives of an Evidence-Based Intervention for Children with Autism Served in Community Mental Health Clinics}}. {Journal of child and family studies}. 2013 Apr 1;22(3):414-22.
Research suggests that improvements to community mental health (CMH) care for children with autism spectrum disorders (ASD) are needed. Recent research examining the feasibility of training CMH therapists to deliver a package of evidence-based practice intervention strategies (EBPs) targeting challenging behaviors for school-age children with ASD offers initial support for such efforts to improve care. Specifically, quantitative data from a recent pilot study indicate that CMH therapists with limited ASD experience can deliver an EBP intervention with fidelity and perceive it as useful to their practice. Further, client attendance is high and children demonstrate improvement on standardized measures. To further understand the feasibility and impact of training CMH therapists to deliver EBPs, this mixed-methods study examined parent perspectives of the process and impact of outpatient psychotherapy for 13 parents of children ages 5-13 with ASD whose therapists were trained to deliver the EBP intervention. Results complement and expand previously reported quantitative data on psychotherapy process indicating that parents are highly involved in treatment for their children, perceive a strong therapeutic alliance with their children’s therapist, and highlight that treatment was different once therapists began delivering the intervention. Results also indicate themes related to parents’ perceptions of positive child and parent outcomes that provide important details on the specific gains that were observed during treatment. Study findings underscore the importance of parent perspectives in understanding the process and impact of implementing EBPs in CMH settings for families of children with ASD.
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10. Vander Wyk BC, Hoffman F, Pelphrey KA. {{Equivalent neural responses in children and adolescents with and without autism during judgments of affect}}. {Developmental cognitive neuroscience}. 2013 Aug 21.
Previous research has noted disrupted patterns of neural activation during emotion, processing in individuals with autism spectrum disorders (ASD). However, prior research relied on, designs that may place greater cognitive load on individuals with ASD. In order to address this issue, we adapted the fMRI task of Ochsner et al. (2004a) for children by, presenting fewer stimuli, with fewer valence levels, and longer stimuli duration. A localizer sample of, typically developing children (n=26) was used to construct regions of interest involved in emotional, processing. Activations in these regions during self- and other-referential emotion processing was, compared in age, IQ, gender matched groups (n=17 ASD, n=16 TD). Matched samples replicate, condition contrasts of the localizer, but no group differences were found in behavior measures or, neural activation. An exploratory functional connectivity analysis in a subset of the matched groups, also did not detect striking differences between the groups. These findings suggest that disruptions in activation in emotion processing neural networks in ASD is partially a function of task related cognitive load.
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11. Wallisch P, Bornstein AM. {{Enhanced motion perception as a psychophysical marker for autism?}}. {The Journal of neuroscience : the official journal of the Society for Neuroscience}. 2013 Sep 11;33(37):14631-2.
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12. Woods AG, Mahdavi E, Ryan JP. {{Treating clients with Asperger’s syndrome and autism}}. {Child and adolescent psychiatry and mental health}. 2013 Sep 11;7(1):32.
Asperger’s syndrome (AS) is a form of autism spectrum disorder (ASD) affecting many individuals today. Although neurobiological correlates for AS have been identified, like many ASDs, AS is not completely understood. AS as a distinct disorder is also not universally accepted and in the DSM-5 AS is not considered a separate nosological entity. In contrast to some other ASDs, individuals with AS are commonly characterized by having standard or higher than average intelligence, yet difficulties in social skills and communication can present challenges for these individuals in everyday functioning. Counseling a person with AS or autism presents a unique challenge for the mental health care provider. We have compiled this review consisting of some recent ideas regarding counseling the client with AS with the goal of providing some clinical insights and practical clues. Although the focus of the present paper is largely on AS, many of these strategies could also apply to individuals with high-functioning autism (HFA).
