Autism Spectrum Disorder Adults Research Articles

Investigating attention-deficit hyperactivity disorder and autism spectrum disorder traits in the general population: What happens in adult life?

BackgroundAttention‐deficit hyperactivity disorder (ADHD) and autism spectrum disorder (ASD) are generally considered early‐onset disorders so most research has therefore tended to focus on children. Differences between ADHD/ASD in adult life and childhood have been noted, but few population‐based studies have examined them in adulthood. Furthermore, the interpretation of findings is hampered by changes in measure and from parent report to self‐report.MethodWe examined continuous/trait measures of parent‐ and self‐rated ADHD and ASD in adulthood (age 25 years) in a UK prospective longitudinal sample ALPSAC (the Avon Longitudinal Study of Parents and Children), using many of the same measures that parents reported on in childhood (N = 6,064). Our aim was to investigate these traits in this population for mean‐level sex differences, overlaps with other cognitive, learning and communication problems and their associations with polygenic risk scores (PRS) for neuropsychiatric disorders (ADHD, ASD, schizophrenia, depression and anxiety).ResultsADHD and ASD traits in adulthood, as in childhood, showed associations with childhood cognitive, learning and communication problems and adult communication/language measures, although less so for self‐ratings than parent‐ratings. Males had higher ADHD and ASD trait levels, but this was not as marked as in childhood. In adulthood, ADHD (both parent‐ and self‐rated) and ASD (parent‐rated) symptoms showed associations with ADHD PRS; self‐reported ADHD also showed association with depression PRS, whereas self‐reported ASD did not show strong PRS associations.ConclusionsOur findings suggest that in young adults, ADHD and ASD symptoms have similar characteristics as they do in childhood. Associations with other cognitive, learning and communication problems, and ADHD PRS were somewhat less pronounced for self‐reported adult ADHD and ASD symptoms, suggesting that even at age 25, parent reports, where available, could be clinically useful.

Autism Spectrum Disorder and Schizophrenia Are Better Differentiated by Positive Symptoms Than Negative Symptoms.

Autism spectrum disorder (ASD) and schizophrenia (SZ) are heterogenous neurodevelopmental disorders that overlap in symptom presentation. The purpose of this study was to specify overlapping symptom domains and to identify symptoms that can reliably differentiate adults with ASD (n = 53), SZ (n = 39), and typical development (TD; n = 40). All participants regardless of diagnosis were administered gold-standard diagnostic assessments of ASD and SZ characteristics including the Autism Diagnostic Observation Schedule (ADOS-2) and the Positive and Negative Syndrome Scale (PANSS). Sensitivity and specificity of the ADOS were assessed using diagnostic cut-off scores. The degree of symptom overlap on these measures between participant groups was analyzed using Analyses of Variance (ANOVAs), Receiver Operating Characteristic (ROC) Curves, and Analyses of Covariance (ANCOVAs) to control for group differences in IQ and sex distributions. The ADOS reliably discriminated ASD and TD adults, but there was a high rate of “false positives” in SZ patients who did not meet the DSM-5 criteria for ASD. To identify the reasons for low specificity in the SZ sample, we categorized ASD and SZ symptoms into ‘positive’ (presence of atypical behaviors) and ‘negative’ (absence of typical behaviors) symptoms. ASD and SZ groups overlapped on negative symptoms largely related to the absence of typical social and communicative behaviors, whereas disorder-specific positive symptoms differentiated ASD and SZ. For example, those with ASD scored higher on restricted and repetitive behaviors and stereotyped language, whereas those with SZ scored higher on psychotic symptoms such as delusions and hallucinations. These results suggest that, when making a differential diagnosis between ASD and SZ, clinicians may benefit from focusing on the presence or absence of positive ASD and SZ symptoms. Standardized measures to classify ASD symptoms into positive and negative symptoms have not yet been developed but represent a potentially viable clinical tool.

Cerebrospinal Fluid Findings of 36 Adult Patients with Autism Spectrum Disorder.

Autism spectrum disorder (ASD) is a common neurodevelopmental disorder characterized by difficulties with social interaction, repetitive behavior, and additional features, such as special interests. Its precise etiology is unclear. Recently, immunological mechanisms, such as maternal autoantibodies/infections, have increasingly been the subject of discussion. Cerebrospinal fluid (CSF) investigations play a decisive role in the detection of immunological processes in the brain. This study therefore retrospectively analyzed the CSF findings of adult patients with ASD. CSF basic measures (white blood cell count, total protein, albumin quotient, immunoglobulin G (IgG) index, and oligoclonal bands) and various antineuronal antibody findings of 36 adult patients with ASD, who had received lumbar puncture, were compared with an earlier described mentally healthy control group of 39 patients with idiopathic intracranial hypertension. CSF protein concentrations and albumin quotients of patients with ASD were significantly higher as compared to controls (age corrected: p = 0.003 and p = 0.004, respectively); 17% of the patients with ASD showed increased albumin quotients. After correction for age and gender, the group effect for total protein remained significant (p = 0.041) and showed a tendency for albumin quotient (p = 0.079). In the CSF of two ASD patients, an intrathecal synthesis of anti-glutamate decarboxylase 65 (GAD65) antibodies was found. In total, more of the ASD patients (44%) presented abnormal findings in CSF basic diagnostics compared to controls (18%; p = 0.013). A subgroup of the patients with adult ASD showed indication of a blood–brain barrier dysfunction, and two patients displayed an intrathecal synthesis of anti-GAD65 antibodies; thus, the role of these antibodies in patients with ASD should be further investigated. The results of the study are limited by its retrospective and open design. The group differences in blood–brain barrier markers could be influenced by a different gender distribution between ASD patients and controls.

Child psychiatry in China: Present situation and future prospects.

Child psychiatry in China: Present situation and future prospects.

Seeing and communicating: photography and young male adults with Autism Spectrum Disorder

Digital photography is deeply embedded in people’s daily lives, as camera phones and digital compact cameras are widely used in social and cultural settings. People have an increased agency and choice over what they want to photograph, where and when; many people carry their smartphones everywhere and share their images instantly via social media platforms. Within the recent scholarship on everyday photography, however, little attention has been paid to the photographic practices of people with Autism Spectrum Disorder (ASD), one of many marginalized groups whose photography has not been explored. This article addresses this shortfall. Drawing on a qualitative, image-based investigation, the author turns to phenomenology to examine four young male ASD adults’ unique ways of seeing and being-in-the-world as expressed through the use of their camera. Their involvement indicates that ASD people have the potential to have a powerful voice in how society conceives of what autism is and what it means to live with ASD. A case study discussion of key research findings presents examples of the pictures taken in the sphere of participants’ everyday lives, revealing that the camera acts as an extension of experience and perception, a mediator and filter. Photography enables the four male ASD individuals’ being-in-the-world and exposes the social life of this marginalized group. The article offers a significant contribution to the field of visual communication and sensory experience.

Copy Number Variants and Polygenic Risk Scores Predict Need of Care in Autism and/or ADHD Families.

Autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD) are highly heritable neurodevelopmental disorders that frequently co-occur. Both rare and common genetic variants are important for ASD and ADHD risk but their combined contribution to clinical heterogeneity is unclear.In a sample of 39 ASD and/or ADHD families we estimated the overall variance explained by known rare copy number variants (CNVs) and polygenic risk score (PRS) from common variants to be10% in comorbid ASD/ADHD, 4% in ASD and 2% in ADHD. We show that burden of large, rare CNVs and PRS is significantly higher in adult ASD and/or ADHD patients with sustained need for specialist care compared to their unaffected relatives, while affected relatives fall in-between the two.

Differential diagnosis personality disorder versus autism spectrum disorder in older adults

Scientific knowledge of autism spectrum disorders (ASD) in older adults is still scarce. Differential diagnosis of ASD and personality disorders is complicated, especially in later life. There is overlap between ASD and personality disorders, both conceptually and descriptively. The manifestation of both disorders is heterogeneous, influenced by age specific factors and characterised by similar behavioural symptoms and the lack of a sound developmental history. In both disorders, age specific changes can exceed adaptive abilities of patients, so ASD and personality disorders may become manifest for the first time in old age. More research is needed to fully understand the relationship between ASD and personality development across the life span. Also, there is a need for assessment instruments for both adults and older people with comorbid mental disorders and personality disorders in particular. As comorbidity of ASD and personality disorders appears to be common, more research should be done into treatment of comorbid personality disorders, also in later life.

Enhancements to Statistical Probability of Area Models based upon updated ISRID data collection for Autistic Spectrum Disorders and Typically Developing Children

Both Autism Spectrum Disorder (ASD) individuals and Typically Developing (TD) children are associated with Search and Rescue incidents. Though they are in the same age range, these two groups are typically placed into different subject categories in lost person behavior profiles. This work compares these two age similar profiles to critically examine what statistical differences do exist. In addition, a new geo-spatial statistical point model is introduced, potentially applicable to all lost person subject profiles. Retrospective data from the updated International Search & Rescue Incident Database (ISRID2) was used to examine both spatial and incident characteristics of individuals with ASD (n=338) and TD children (n=2335) who were reported missing and then were the subject of a search. The updated version of ISRID now contains 145,000 incidents. Those with ASD are 3-4 times more likely to require a search effort (P << .0001). ASD children (age 1-15) were not found to be statistically significant than ASD adults. The new point model and watershed model for ASD is introduced. Survivability curves are now reported out to the 5% chance of survival with findings of 7 days for ASD and 11 days for TD Children. Search incidents for missing ASD and TD children demonstrate significant differences but also have some common features. Both adults and children with ASD share the same geo-spatial outcomes. Keywords: ISRID, Missing Persons, GIS, Lost Person Behavior, Models

P121 Improved performance on the empathy quotient in adult autism spectrum disorder after tDCS

P121 Improved performance on the empathy quotient in adult autism spectrum disorder after tDCS

Pain Modulation Mechanisms in ASD Adults

We tested endogenous pain modulation mechanisms in adults with autism spectrum disorders (ASD). Nineteen ASD adults without intellectual disabilities were included, matched with 19 healthy volunteers on the basis of sex and chronological age. An experimental pain model was used to measure excitatory and inhibitory pain mechanisms in a single session. Statistical analyses indicated that endogenous pain modulation mechanisms in ASD group did not differ significantly from those of healthy adults. The pain scores were very disparate in ASD group with a greater range of extreme scores than in control group. Unlike schizophrenic patients, there was no systematic dysfunction of endogenous excitatory pain modulation mechanisms, but the high variability requires to be wise to interpret the results and formulate conclusion.

Psychological mindedness as a mediator in the relationship between dysfunctional coping styles and depressive symptoms in caregivers of children with autism spectrum disorder.

Psychological mindedness (PM) can partly explain depressive symptoms in caregivers of autism spectrum disorder (ASD). This cross-sectional study examines PM in mediating the relationship between dysfunctional coping styles and depressive symptoms. One hundred fifty-five adult ASD caregivers completed the Malay version of Brief COPE, the Patient Health Questionnaire-9, and the Balanced Index of PM. Direct paths between dysfunctional coping style and depressive symptoms, between insight and depressive symptoms, and between dysfunctional coping style and all PM variables (insight and interest) were obtained. Multiple regression analyses revealed that insight, but not interest, significantly mediates the relationship between dysfunctional coping and depressive symptoms. PM can be enhanced via psychological interventions.

Exploring the social cognition network in young adults with autism spectrum disorder using graph analysis.

BackgroundAutism spectrum disorder (ASD) is characterized by an impairment in social cognition (SC). SC is a cognitive construct that refers to the capacity to process information about social situations. It is a complex network that includes distinct components. Exploring how SC components work together leads to a better understanding of how their interactions promote adequate social functioning. Our main goal was to use a novel statistical method, graph theory, to analyze SC relationships in ASD and Typically Developing (TD) individuals.MethodsWe applied graph theory to SC measures to verify how the SC components interact and to establish which of them are important within the interacting SC network for TD and ASD groups.ResultsThe results showed that, in the TD group, the SC nodes are connected; their network showed increased betweenness among nodes, especially for the Theory of Mind. By contrast, in the SC network in the ASD group the nodes are highly disconnected, and the efficient connection among the components is absent.ConclusionASD adults do not show SC competencies and functional communication among these skills. Under this regard, specific components are crucial, suggesting they could represent critical domains for ASD SC.

Деятельность группы поддержки для взрослых людей с синдромом Аспергера в России

Problems with Asperger's syndrome diagnostic in adults in Russia and obsolete practice of replacement of the diagnosis after age of 18 caused necessity of organization of specialized supports and efforts for social adaptation of such individuals. Experience of organization and leading the support group (that works since 2010) for adults with Asperger’s syndrome and high functioning autism is described: conditions, rules and recommendations for its organization. The discussed topics include autism awareness, social integration, personal relationships, autism symptoms and coping strategies, independent life. The participants report that the group is beneficial as a comfortable place for socialization, life experience exchange, development of self-acceptance, self-awareness and independent life skills. Involvement of psychologists in leading of some group meetings showed the necessity to extend their knowledge about autism spectrum disorders in adults. A review of screening tests and other aspects of self-diagnosis is given. Analysis of functioning of the support group for people with Asperger's syndrome and high-functioning autism confirmed large demand on this kind of help and its necessity for improving life quality.

WITHDRAWN

The document associated with this DOI has been withdrawn.

Caring Child and Adult Autism Spectrum Disorder in COVID-19 Pandemic

The worldwide population prevalence of autism is about 1%. The current picture that we are experiencing with the COVID-19 pandemic makes it difficult for many people to understand and assimilate everything that is happening.

An Exploratory Analysis of Increasing Self-Efficacy of Adults with Autism Spectrum Disorder Through the Use of Multimedia Training Stimuli.

While some evidence-based vocational studies exist for adults with Autism Spectrum Disorder (ASD), most focus on social interaction. This mixed methods exploratory study investigated a multimedia approach to training ASD adults as a strategy for increasing self-efficacy and producing positive training outcomes during the anticipatory socialization and encounter phases of organizational assimilation. Ten ASD adults, seven men and three women, 19 to 42 years of age, participated in the study, which utilized video and virtual reality to instruct participants on how to wire an electrical socket. Significant increases in the participant's self-efficacy were found using a modified version of the New General Self-Efficacy (NGSE) scale. In addition, a thematic analysis of post-training comments showed that participants, overall, were engaged and had fun during the training. These findings suggest that a multimedia approach may be an effective strategy for achieving positive outcomes by increasing self-efficacy and engagement when training newly hired employees diagnosed with ASD to perform vocational tasks.

The Analysis of Adult Autism Spectrum Disorders Screening Using Neural Network

One of the increasing developmental disorders in Indonesia is Autism Spectrum Disorder (ASD), developmental disorder characterized by difficulties to conduct verbal and non-verbal communication and social interaction. This disorder cannot be tolerated and requires early treatment to reduce its development. However, ASD treatments required ineffective treatment costs and waiting times diagnosis were lengthly. One effective alternative diagnosis isto use the screening technology to determine the early symptoms of ASD disorders. The rapid development of the number of ASD cases around the world required researchers to determine a dataset with behavioral properties to update the screening process. Thus, the purpose of this study is to predict the success of screening performed on adults with Autism Spectrum Disorder (ASD) using the researchers’ results dataset, so that the dataset could be used as a benchmark for the success of the ASD screening process. The method used is machine learning neural network method with 100 training cycle, learning rate 0,01 and momentum 0,9 resulted in a classification accuracy of 96.00%

P.25A longitudinal study of autism spectrum disorders in children, adolescents and young adults with congenital and childhood myotonic dystrophy type 1

P.25A longitudinal study of autism spectrum disorders in children, adolescents and young adults with congenital and childhood myotonic dystrophy type 1

An epigenetic biomarker for adult high-functioning autism spectrum disorder

Increasing evidence suggests that epigenetic mechanisms play a role in the etiology of autism spectrum disorder (ASD). To date, several studies have attempted to identify epigenetic biomarkers for ASD. However, reliable markers remain to be established and most of these studies have focused on pediatric patients with ASD. In this study, we sought to find an epigenetic DNA methylation biomarker from peripheral blood for adult patients with high-functioning ASD. DNA methylation profiles were analyzed using the Illumina 450 K methylation array. To identify robust candidate markers, we employed two types of machine-learning algorithms for marker selection. We identified a potential marker (cg20793532) for which is the AUC value was 0.79. Notably, cg20793532 was annotated to the PPP2R2C gene, which was hypermethylated and down-regulated in blood from ASD patients compared to that in the controls. Although requiring careful interpretation, this pilot study seems to provide a potential blood biomarker for identifying individuals with high-functioning ASD.

Evaluation of agomelatine for the treatment of sleep problems in adults with autism spectrum disorder and co-morbid intellectual disability.

Intellectual disability (ID) and autism spectrum disorder (ASD) are common, co-occurring developmental disorders and are frequently associated with sleep problems. This study aimed to assess the effectiveness and tolerability of agomelatine as a pharmacotherapy for sleep problems in ASD adults with ID. A randomised, crossover, triple-blind, placebo-controlled clinical trial, with two three-month periods of treatment starting with either agomelatine or placebo and a washout period of two weeks. Ambulatory circadian monitoring (24 hours/7 days) evaluated total sleep time (TST) as the primary outcome variable. Participants (N=23; 35±12 years old; 83% male) had a median of three (interquartile range (IQR) 1-4) co-morbidities and were taking a median of five (IQR 2-7) prescribed drugs. Before agomelatine or placebo treatment, all subjects presented with insomnia symptoms, including sleep latency (100% abnormal, 55±23 minutes) or TST (55% abnormal, 449±177 minutes), and 66% had circadian rhythm sleep-wake abnormalities with rhythm phase advancements according to the M5 sleep phase marker values. During the three-month agomelatine treatment, night TST significantly increased by a mean of 83 minutes (16% abnormal, 532±121 minutes), together with a phase correction (M5 1:45±2:28 hours vs. 3:15±2:20 hours), improving sleep stability in wrist temperature rhythm (0.43±0.29 vs. 0.52±0.18 AU). Adverse events were mild and transient. Agomelatine was effective and well tolerated for treating insomnia and circadian rhythm sleep problems present in adults with ASD and ID.