Aggressive behavior in a sample of children with autism spectrum disorders

Little is known about the manifestation of aggressive behavior in children with autism, although it is commonly cited as a significant problem. Existing reports in autism do not emphasize subtypes of aggression, whereas distinguishing forms of aggression is commonplace in the typically developing literature. This study compared a sample of 121 children aged 3–20 years with autism spectrum disorders (ASD) to 244 children with other intellectual and developmental disabilities (IDD; age 4–21 years). Item- and subscale-level data from the Children's Scale for Hostility and Aggression: Reactive/Proactive (C-SHARP) were reported. Children with ASDs received higher ratings than those with IDD on several subscales tapping physical and reactive aggression. Within the ASD group, children with Asperger's disorder were rated significantly higher than children with autism on subscales tapping covert and verbal behaviors. Results indicate that at least some types of aggression were more common in children with ASDs than those with IDDs.     

Adolescent Siblings of Individuals with an Autism Spectrum Disorder: Testing a Diathesis-Stress Model of Sibling Well-Being

The purpose of this study was to test a diathesis-stress model of well-being for siblings who have a brother or sister with an autism spectrum disorder (ASD). Data were collected from 57 adolescents and their mothers. Sisters reported higher levels of depressive and anxiety symptoms than brothers. Having a family history of ASDs was associated with depressive, but not anxiety, symptoms. A high level of maternal depression was also associated with more depressive and anxiety symptoms. A diathesis-stress model was partially supported, primarily through the findings that sibling sub-threshold autism characteristics were associated with depressive and anxiety symptoms in siblings, but only in the presence of a high number of stressful life events.     

Improving Socialization for High School Students with ASD by Using Their Preferred Interests

There has been a paucity of research on effective social interventions for adolescents with autism spectrum disorders (ASD) in inclusive high school settings. The literature, however, suggests that incorporating the student with ASD’s special interests into activities may help improve their socialization with typical peers. Within the context of a multiple baseline across participants design, we implemented lunchtime activities incorporating the adolescent with ASD’s preferred interests that were similar to ongoing activities already available at the schools. Results showed this increased both level of engagement and their rate of initiations made to typical peers. Social validation measures suggest that both adolescents with ASD and typical peers enjoyed participating in these activities and that the results generalized to other similar activities.     

Factors relating to education professionals’ classroom practices for the inclusion of students with autism spectrum disorders

It is essential to understand the current practices used to foster inclusive education for students with autism spectrum disorders (ASDs) as well as factors related to the implementation of classroom interventions. In the current study authors assess the experience, knowledge, attitudes and current practices of education professionals regarding ASD. Results suggest that special education teachers and school psychologists hold higher levels of experience, training, and knowledge as compared to general education teachers and administrators. Attitudes towards inclusive education for students with ASD were positive, in general, although attitudes were not a significant predictor of awareness or use of empirically supported interventions. Implications and future directions are discussed.     

Formal Thought Disorder and the Autism Spectrum: Relationship with Symptoms,Executive Control,and Anxiety

This study investigated whether children with autism spectrum disorders (ASDs) exhibit formal thought disorder (FTD), and whether this is related to ASD symptoms, executive control, and anxiety. Participants aged 8-17 with ASDs exhibited significantly more illogical thinking and loose associations than matched typically developing control subjects. In participants with ASDs, illogical thinking was related to aspects of cognitive functioning and to executive control. Loose associations were related to autism communication symptoms and to parent reports of stress and anxiety. When FTD is present in ASDs, it generally is not a co-morbid schizophrenia symptom, but is related to pragmatic language abnormalities found in ASDs. The clinical and neurobiological significance of this work is discussed.     

Salivary cortisol levels and challenging behavior in children with autism spectrum disorder

A relationship between stress and challenging behavior in individuals with autism spectrum disorder (ASD) has been theorized but infrequently examined empirically. The current study sought to examine the relationship between a parent-reported measure of stress, a physiological measure of stress (diurnal salivary cortisol), and various topographies of challenging behavior among 61 children and adolescents diagnosed with ASD between the ages of three and 18 years. Significant differences in cortisol levels between those engaging in high and low rates of stereotyped behavior were observed such that higher levels of stereotypy appeared an overt manifestation of higher levels of stress. A comparison between a subset of participants with ASD and typically developing peers matched on age, gender, and pubertal status failed to yield any differences in diurnal cortisol levels or cortisol variability between the two groups. The results of the current study suggest that similar levels of stress may exist among children with autism and their typically developing peers, but that for a subset of individuals with ASD, stereotyped behavior may be an indicator of elevated cortisol levels.     

Depression and Anxiety Symptoms in Children and Adolescents with Autism Spectrum Disorders without Intellectual Disability

Recent studies have shown that rates of depression and anxiety symptoms are elevated among individuals with autism spectrum disorders (ASDs) of various ages and IQs and that depression/anxiety symptoms are associated with higher IQ and fewer ASD symptoms. In this study which examined correlates of depression and anxiety symptoms in the full school-age range of children and adolescents (age 6-18) with ASDs and IQs ≥ 70 (n = 95), we also observed elevated rates of depression/anxiety symptoms, but we did not find higher IQ or fewer ASD symptoms among individuals with ASDs and depression or anxiety symptoms. These findings indicate an increased risk for depression/anxiety symptoms in children and adolescents with ASDs without intellectual disability, regardless of age, IQ, or ASD symptoms.     

A prospective assessment of porphyrins in autistic disorders: A potential marker for heavy metal exposure

Autism was recently associated with a urinary porphyrin pattern indicative of mercury toxicity in a large cohort of French children. The IRB of the Institute for Chronic Illnesses approved the present study. A total of 37 consecutive American patients (> or = 7 years-old) with autism spectrum disorders (ASDs) (Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition-DSM IV), born from 1983-1998, that presented to the Genetic Centers of America for outpatient genetic evaluations were prospectively examined for urinary prophryin levels (LabCorp, Inc.) from June 2005-June 2006. Imaging and laboratory testing were conducted on each patient to rule-out other causal factors for their ASDs. As controls, age-, sex-, and race-matched neurotypical ASD siblings were examined. An apparent dose-response effect was observed between autism severity and increased urinary coproporphyrins. Patients with non-chelated autism (2.25-fold, 83% had levels > 2 SD above the control mean) and non-chelated ASDs (2-fold, 58% had levels > 2 SD above the control mean), but not patients with non-chelated pervasive developmental delay-not otherwise specified (PDD-NOS) or Asperger's disorder (1.4-fold, 46% had levels > 2 SD above the control mean), had significantly increased median coproporphyrin levels versus controls. A significant increase (1.7-fold) in median coproporphyrin levels was observed among non-chelated ASD patients versus chelated ASD patients. Porphyrins should be routinely clinically measured in ASDs, and potential ASD treatments should consider monitoring porphyrin levels. Additional research should be conducted to evaluate the potential role for mercury exposure in some ASDs.     

Screening and Identifying Children with Autism Spectrum Disorders in the Public School System: The Development of a Model Process

Heightened public awareness of autism and increased prevalence estimates of autism spectrum disorders (ASDs) has generated a sense of urgency within the public school system to identify children with these disorders for targeted intervention. Two multidisciplinary groups of professionals, one each from two separate school districts, were identified and trained to provide diagnostic and consultative services. This paper outlines a model process for school personnel to develop a basic level of training and competence in recognizing and serving students who have an ASD by (1) providing an overview of the legal and clinical issues involved in screening for children with ASD within the school system, (2) defining a school-based professional training process and (3) outlining a school-based ASD screening process.     

Social Anxiety in Parents of High-Functioning Children with Autism and Asperger Syndrome

We evaluated social anxiety (SA) symptoms in parents of children with autism spectrum disorders (ASDs; N = 131) and community parents (N = 597) using the Social Phobia and Anxiety Inventory (SPAI). SA was significantly more common in ASD than control mothers (15.6 vs. 6.7 %) and more equal between the ASD and control fathers (3.3 vs. 4.8 %). The ASD mothers scored significantly higher than control mothers on all SPAI scales. ASD fathers scored significantly higher than control fathers on the somatic, cognitive, avoidance and agoraphobic symptoms of SA. It is of clinical import to support ASD parents’ well-being as their psychiatric features may contribute greatly to their children’s emotional development and the well-being of the whole family.     

An evaluation of school involvement and satisfaction of parents of children with autism spectrum disorders

Parental school involvement and satisfaction are unstudied in families raising a child with an autism spectrum disorder (ASD). To fill this gap, the current study utilized a national sample of families (N = 8,978) from the 2007 Parent and Family Involvement in Education survey ( U.S. Department of Education, National Center for Education Statistics, 2006-2007 ). Parents of children with ASDs were found to be more likely than parents of children without the disorder to attend parent-teacher conferences, meet with school guidance counselors, and help with homework. Parents of children with ASD were also more dissatisfied with the level of communication provided by the school. There was a significant positive correlation between parental school involvement and parental school satisfaction. These findings have important implications for how schools interact with families with children with ASD.     

Does Gender Matter? A One Year Follow-up of Autistic,Attention and Anxiety Symptoms in High-Functioning Children with Autism Spectrum Disorder

Gender differences in autism spectrum disorder (ASD) symptoms and associated problem behaviours over development may provide clues regarding why more males than females are diagnosed with ASD. Fifty-six high-functioning children with ASD, and 44 typically developing controls, half of the participants female, were assessed at baseline (aged 7–12 years) and one-year later, collecting measures of autism, attention and anxiety symptoms, school placement and support information. Findings indicated no gender differences in autistic symptoms. Males were more hyperactive and received more integration-aide support in mainstream schools, and females were more socially anxious. Overall, similar gender profiles were present across two time points. Lower hyperactivity levels in females might contribute to their under-identification. Implications are discussed using a biopsychosocial model of gender difference.     

Is the presence of urinary indolyl‐3‐acryloylglycine associated with autism spectrum disorder?

To test whether the presence of indolyl-3-acryloylglycine (IAG) is associated with autism, we analyzed urine from population-based, blinded cohorts. All children in York, UK with autism spectrum disorders (ASDs), diagnosed using ICD-10 research diagnostic criteria, were invited to participate. Fifty-six children on the autism spectrum (mean age 9y 8mo, SD 3y 8mo; 79% male) agreed to participate, as did 155 children without ASDs (mean age 10y, SD 3y 2mo; 54% male) in mainstream and special schools (56 of whom were age-, sex-, and school-matched to children with ASDs). IAG was found at similar levels in the urine of all children, whether IAG concentrations or IAG:creatinine ratios were compared. There was no significant difference between the ASD and the comparison group, and no difference between children at mainstream schools and those at special schools. There is no association between presence of IAG in urine and autism; therefore, it is unlikely to be of help either diagnostically or as a basis for recommending therapeutic intervention with dietary manipulation. The significance of the presence of IAG in urine has yet to be determined.     

Multi-Informant Predictors of Social Inclusion for Students with Autism Spectrum Disorders Attending Mainstream School

This study examined differential profiles of behavioural characteristics predictive of successful inclusion in mainstream education for children with autism spectrum disorders (ASD) and comparison students. Multiple regression analyses using behavioural ratings from parents, teachers and peers found some evidence for differential profiles predicting peer acceptance and rejection. High levels of peer-rated shyness significantly predicted social rejection in comparison students only. Parent-rated prosocial behaviour also differentially predicted social acceptance; high-levels of prosocial behaviour predicted acceptance in comparison students, but low-levels were predictive for students with ASD. These findings suggest that schools may seek to augment traditional social skills programmes with awareness raising about ASD among mainstream pupils to utilise peers’ apparent willingness to discount characteristics such as ‘shyness’.     

The relationship between Health-Related Quality of Life and sleep problems in children with Autism Spectrum Disorders

Although children with Autism Spectrum Disorders (ASD) are thought to experience sleep problems at a much higher rate than typically developing peers, the relationship between sleep disturbance and Health-Related Quality of Life (HRQoL) has not been explored within this pediatric population. Further, little is understood about the HRQoL of children with ASD in general. This study assessed the HRQoL and sleep health of a sample of children with ASD and investigated the relationship between HRQoL and overall sleep problems within the context of key clinical characteristics. Study participants included 86 parents of children with ASD between the ages of 4 and 12 years. Subjects were recruited from 3 autism specialty clinics at large academic medical centers and asked to proxy-report on their children's HRQoL and sleep habits. Adjusted regression models showed a consistent negative relationship between sleep disturbance and HRQoL, with greater overall sleep problems being associated with poorer total, physical, and psychosocial HRQoL. Sleep duration and sleep anxiety were also found to be negatively associated with HRQoL. These findings suggest that treatments that are effective in treating sleep disturbances may improve children's HRQoL.     

Surviving in the mainstream: Capacity of children with autism spectrum disorders to perform academically and regulate their emotions and behavior at school

This study compares teachers’ perceptions of students with autism spectrum disorders (ASD) to their perceptions of typically developing students with regard to capacity to perform academically and regulate emotions and behavior in mainstream classrooms. A case-control research design was used to compare teacher ratings of academic performance and classroom emotional and behavioral regulation of 28 students with ASD (with average range IQ) and 51 age- and gender-matched typically developing (TD) students drawn from the same mainstream classrooms. Teachers rated students with ASD as exhibiting behavioral and emotional difficulties (including attention difficulties, anxiety, depression, oppositional and aggressive behaviors) to a significantly higher level than their typically developing peers. Fifty-four percent of students with ASD were rated as under-achieving academically as compared to 8% of typically developing students. Students with ASD seem to be underperforming relative to their level of ability and are struggling to maintain their attention and regulate their emotions and behaviors in mainstream classrooms, despite receiving a range of specialist support services in the classroom. Consideration needs to be given to investigating alternative models of supporting these students in mainstream classrooms and assisting them to develop strategies to cope with the student role.     

Supporting More Able Students on the Autism Spectrum: College and Beyond

In the 1990's a surge of children were diagnosed with autism spectrum disorders (ASDs) and are now approaching college age. Through early diagnosis and intervention many of these children are now able to consider post secondary education. However, these students will need specific interventions and supports in order to be successful. This article reviews the nosology of ASDs, the legal basis for providing accommodations to students on the autism spectrum, and the incidence and prevalence of ASDs. The authors provide specific recommendations regarding the academic, independent living, social, vocational and counseling needs of college students who are on the autism spectrum. With a carefully planned transition, appropriate accommodations, and support, ASD students can be successful academically and socially in college.     

Cognitive-behavioral therapy for anxiety in children diagnosed with autism spectrum disorders: Modification trends

Anxiety disorders have been found to be highly comorbid with autism spectrum disorders (ASDs). Even so, the identification and dissemination of empirically supported treatments for anxiety in adults or children who have ASD has lagged behind the larger evidence-based trend. This review examines the efficacy of cognitive-behavioral therapy as a treatment for anxiety in children who have an ASD and delineates and summarizes the trends in modifying efficacious cognitive-behavioral therapies for anxiety for use with those having an ASD. Limitations and recommendations for future research toward a standardized treatment model for anxiety in children are discussed.     

Predictors of Psychiatric Symptoms in Children with an Autism Spectrum Disorder

This study examined mental health risk/protective factors for DSM-IV psychiatric symptoms in children with an autism spectrum disorder (ASD) and their contribution to functioning separate from ASD symptom severity. Mothers/teachers completed measures of risk/protection and social, adaptive, and school functioning in 6- to 12-year-olds with a diagnosed ASD (N = 238). Bivariate correlations and simultaneous regression analyses indicated a unique pattern of predictors for attention-deficit/hyperactivity disorder, aggression, anxiety, and depression symptoms. Moreover, psychiatric symptoms differentially predicted social and school performance. Findings indicate that co-occurring psychiatric symptoms and their associated mental health risk/protective factors may have important clinical implications and generally support a biopsychosocial model of psychopathology in children with an ASD that appears to share many similarities with models for nonASD children.     

The Relationship Between Anxiety and Repetitive Behaviours in Autism Spectrum Disorder

Children with Autism Spectrum Disorder are vulnerable to anxiety. Repetitive behaviours are a core feature of Autism Spectrum Disorder (ASD) and have been associated anxiety. This study examined repetitive behaviours and anxiety in two groups of children with autism spectrum disorder, those with high anxiety and those with lower levels of anxiety. Children with high anxiety had more repetitive behaviours than those without anxiety. Within the anxiety sample, higher levels of insistence on sameness were associated with more anxiety. No association was found between sensory motor repetitive behaviours and anxiety in this group. In the non-anxious sample, anxiety was associated with sensory motor repetitive behaviours. These findings indicate a differential relationship for repetitive behaviours in relation to anxious and non-anxious children with ASD.