35 research outputs found
Changes in Electroencephalogram Coherence in Adolescents with Autism Spectrum Disorder after a Social Skills Intervention
Autism spectrum disorder (ASD) is a developmental disorder that affects social communication and behavior. There is a consensus that neurological differences present in individuals with ASD. Further, theories emphasize the mixture of hypo- and hyper-connectivity as a neuropathology in ASD (OâReilly, Lewis, & Elsabbagh, 2017), however, there is a paucity of studies specifically testing neurological underpinnings as predictors of success on social skills interventions. This study examined functional neural connectivity (electroencephalogram, EEG, coherence) of adolescents with ASD before and after the Program for the Education and Enrichment of Relational Skills (PEERSÂź) intervention. Two groups were utilized in this randomized controlled trial (RCT): an Experimental ASD Group (EXP ASD; n = 74) and a Waitlist Control ASD Group (WL ASD; n = 74). The study had 2 purposes. Aim 1 was to determine whether changes in EEG coherence differed in adolescents with ASD receiving PEERSÂź compared to a waitlist control group of ASD adolescents that did not receive the intervention. Results revealed a statistically significant difference between groups in EEG coherence in the occipital left to temporal left pair; indicating an increase of connectivity between the occipital left and temporal left regions after intervention. Aim 2 was to determine if changes in EEG coherence related to changes in behavior, friendships, and social skills via the Social Skills Improvement System (SSIS: Gresham, 2009), Social Responsiveness Scale (SRS: Constantino, 2005), Quality of Socialization Questionnaire-Adolescent (QSQ-A: Laugeson, 2010), and Test of Adolescent Social Skills (TASSK: Laugeson, 2010). Results indicated a positive change in frontal right to parietal right coherence was linked to an increase in SSIS Social Skills scores at post-test. Positive changes in occipital right to temporal right coherence and occipital left to parietal left coherence were linked to an increase in the total number of get-togethers via the QSQ-A. Results of this study have implications for the importance of assessing response to treatment in ASD using neurobehavioral domains
Brief Report: Does Gender Matter in Intervention for ASD? Examining the Impact of the PEERSÂź Social Skills Intervention on Social Behavior Among Females with ASD
A paucity of research has been conducted to examine the effect of social skills intervention on females with ASD. Females with ASD may have more difficulty developing meaningful friendships than males, as the social climate can be more complex (Archer, Coyne, Personality and Social Psychology Review 9(3):212â230, 2005). This study examined whether treatment response among females differed from males. One hundred and seventy-seven adolescents and young adults with ASD (Nâ=â177) participated in this study. When analyzed by group, no significant differences by gender emerged: PEERSÂź knowledge (TASSK/TYASSK, pâ=â.494), direct interactions (QSQ, pâ=â.762), or social responsiveness (SRS, pâ=â.689; SSIS-RS, pâ=â.482). Thus, females and males with ASD respond similarly to the PEERSÂź intervention
The Role of Loneliness as a Mediator Between Autism Features and Mental Health Among Autistic Young Adults
Autistic adults commonly experience anxiety and depression. These mental health concerns are often tied to social experiences, such that mental well-being can be supported by social connection and deteriorated by loneliness. The mediating role of social and emotional loneliness (i.e. social isolation and lack of emotional attachment, respectively) between autism features and mental health has yet to be empirically tested among autistic adults. Here, 69 autistic young adults completed self-report questionnaires assessing social contact (Friendship Questionnaire), autism features (Autism Quotient), mental health (Liebowitz Social Anxiety Scale, Social Phobia Inventory, Beck Depression Inventory), and loneliness (Social and Emotional Loneliness Scale for Adults). Positive associations emerged between autism features, social loneliness, family loneliness, social anxiety, and depression. In addition, more social contact was related to less social and family loneliness and less social anxiety but was not related to depression. Mediation analyses indicated significant indirect effects of social contact and autism features on mental health through social loneliness. Indirect effects partially held substituting family loneliness for social loneliness and did not hold using romantic loneliness. In light of these results, the scientific and clinical implications of the role of loneliness for autistic young adults are discussed and recommendations provided. Lay abstract
Autistic adults commonly experience mental health concerns including social anxiety and depression, which can have negative effects on their quality of life. It is not completely clear, however, why rates of mental health concerns are so high. Some evidence suggests that social connectedness might play a key role. The goal of this study was to explore links between loneliness, mental health concerns, autism features, and social contact among autistic adults and test whether the links between mental health with autism features and social contact can be explained by loneliness. Researchers in this study collected data using questionnaires completed by 69 autistic young adults. Autistic adults who reported more autism features also reported more social and family loneliness, higher levels of social anxiety and depression, and fewer initiated social contacts. In addition, adults with more social contact initiations were likely to report lower levels of social and family loneliness and social anxiety but not depression. Results showed that the link from social engagement and autism features to social anxiety and depression symptoms could be mostly explained by loneliness. The results of this study expand previous findings by illustrating one factor (loneliness) that might be responsible for the high rates of mental health concerns among adults on the autism spectrum. These findings highlight the importance of studying factors related to mental health concerns among autistic adults and ways to best support social connectedness for the mental well-being of autistic young adults
Social Difficulties in Youth with Autism With and Without Anxiety and ADHD Symptoms
Social difficulties inherent to autism spectrum disorder are often linked with coâoccurring symptoms of anxiety and attention deficit hyperactivity disorder (ADHD). The present study sought to examine the relation between such coâoccurring symptoms and social challenges. Parents of adolescents with autism (N = 113) reported upon social challenges via the social responsiveness scale (SRS) and anxiety and ADHD symptomatology via the Child Behavior Checklist. Results revealed differences in SRS scores across coâoccurring symptom subgroups (Anxiety, ADHD, Both, Neither)ânamely, adolescents with autism and anxiety as well as those with autism, anxiety, and ADHD showed greater scores on the SRS than the other groups. Implications for research and clinical practice are discussed and recommendations are offered. Lay Summary
Anxiety and attention deficit hyperactivity disorder (ADHD) symptoms are related to greater social challenges for adolescents with autism spectrum disorder. The present study found that autism with anxiety and autism with anxiety and ADHD, was related to greater social difficulties than autism alone. Findings provide further support for the intertwined nature of anxiety and ADHD symptoms in autism. What this may mean for research and clinical practice is considered and recommendations are suggested
Social Difficulties in Youth with Autism With and Without Anxiety and ADHD Symptoms
Social difficulties inherent to autism spectrum disorder are often linked with coâoccurring symptoms of anxiety and attention deficit hyperactivity disorder (ADHD). The present study sought to examine the relation between such coâoccurring symptoms and social challenges. Parents of adolescents with autism (N = 113) reported upon social challenges via the social responsiveness scale (SRS) and anxiety and ADHD symptomatology via the Child Behavior Checklist. Results revealed differences in SRS scores across coâoccurring symptom subgroups (Anxiety, ADHD, Both, Neither)ânamely, adolescents with autism and anxiety as well as those with autism, anxiety, and ADHD showed greater scores on the SRS than the other groups. Implications for research and clinical practice are discussed and recommendations are offered. Lay Summary
Anxiety and attention deficit hyperactivity disorder (ADHD) symptoms are related to greater social challenges for adolescents with autism spectrum disorder. The present study found that autism with anxiety and autism with anxiety and ADHD, was related to greater social difficulties than autism alone. Findings provide further support for the intertwined nature of anxiety and ADHD symptoms in autism. What this may mean for research and clinical practice is considered and recommendations are suggested
Genotyping And Descriptive Proteomics Of A Potential Zoonotic Canine Strain Of Giardia Duodenalis, Infective To Mice
Conselho Nacional de Desenvolvimento CientĂfico e TecnolĂłgico (CNPq)The zoonotic potential of giardiasis, as proposed by WHO since the late 70's, has been largely confirmed in this century. The genetic assemblages A and B of Giardia duodenalis are frequently isolated from human and canine hosts. Most of the assemblage A strains are not infective to adult mice, which can limit the range of studies regarding to biology of G. duodenalis, including virulence factors and the interaction with host immune system. This study aimed to determine the infectivity in mice of an assemblage A Giardia duodenalis strain (BHFC1) isolated from a dog and to classify the strain in sub-assemblages (Al, All, AIII) through the phylogenetic analysis of beta-giardin (bg), triose phosphate isomerase (tpi) and glutamate dehydrogenase (gdh) genes. In addition, the proteomic profile of soluble and insoluble protein fractions of trophozoites was analyzed by 2D-electrophoresis. Accordingly, trophozoites of BHFC1 were highly infective to Swiss mice. The phylogenetic analysis of tpi and gdh revealed that BHFC1 clustered to sub-assemblage Al. The proteomic map of soluble and insoluble protein fractions led to the identification of 187 proteins of G. duodenalis, 27 of them corresponding to hypothetical proteins. Considering both soluble and soluble fractions, the vast majority of the identified proteins (n = 82) were classified as metabolic proteins, mainly associated with carbon and lipid metabolism, including 53 proteins with catalytic activity. Some of the identified proteins correspond to antigens while others can be correlated with virulence. Besides a significant complementation to the proteomic data of G. duodenalis, these data provide an important source of information for future studies on various aspects of the biology of this parasite, such as virulence factors and host and pathogen interactions.1110CNPq (Brazilian National Council for Scientific and Technological Development)FAPEMIG (State Funding Agency of Minas Gerais (FAPEMIG))INCTV (National Institute of Science and Technology in Vaccines)Conselho Nacional de Desenvolvimento CientĂfico e TecnolĂłgico (CNPq
A Psychometric Analysis of the Social Anxiety Scale for Adolescents Among Youth with Autism Spectrum Disorder: CaregiverâAdolescent Agreement, Factor Structure, and Validity
Social anxiety is common among adolescents with autism spectrum disorder (ASD). An ongoing challenge for both research and clinical practice in ASD is the assessment of anxious symptomatology. Despite its widespread use in samples of youth with ASD, the Social Anxiety Scale for Adolescents (SAS-A) has not received psychometric evaluation within this population; thus, the validity of its use in research and clinical practice for ASD remains unclear. The present study conducted a psychometric analysis of caregiver and adolescent SAS-A forms in a sample of adolescents with ASD (N = 197). Results revealed (1) poor caregiverâadolescent item-level agreement, (2) a two-factor structure, (3) lack of measurement invariance between reporters, and (4) modest evidence for convergent and discriminant validity. Overall, findings suggest that this measure demonstrates reasonable psychometric properties in an ASD sample. Lack of measurement invariance, however, calls for careful interpretation of research involving the SAS-A in ASD samples, particularly when the primary goal is to compare adolescent and caregiver reports. The implications of these findings for future research and clinical practice are discussed
GA4GH: International policies and standards for data sharing across genomic research and healthcare.
The Global Alliance for Genomics and Health (GA4GH) aims to accelerate biomedical advances by enabling the responsible sharing of clinical and genomic data through both harmonized data aggregation and federated approaches. The decreasing cost of genomic sequencing (along with other genome-wide molecular assays) and increasing evidence of its clinical utility will soon drive the generation of sequence data from tens of millions of humans, with increasing levels of diversity. In this perspective, we present the GA4GH strategies for addressing the major challenges of this data revolution. We describe the GA4GH organization, which is fueled by the development efforts of eight Work Streams and informed by the needs of 24 Driver Projects and other key stakeholders. We present the GA4GH suite of secure, interoperable technical standards and policy frameworks and review the current status of standards, their relevance to key domains of research and clinical care, and future plans of GA4GH. Broad international participation in building, adopting, and deploying GA4GH standards and frameworks will catalyze an unprecedented effort in data sharing that will be critical to advancing genomic medicine and ensuring that all populations can access its benefits
Examining Differences in Parenting Stress, Parenting Efficacy, and Household Context among Mothers of Youth with Autism and/or ADHD
Parents of youth with neurodevelopmental disorders experience unique stressors in family functioning when compared to parents of neurotypical youth. A paucity of research, however, has examined differences in parenting experiences across families of youth with varying neurodevelopmental disorder presentations. This paper focuses on two common and frequently co-occurring conditions: autism spectrum disorder and attention-deficit/hyperactivity disorder (ADHD). In this study, we compared parenting stress, parenting efficacy, and the household context across a sample of 90 mothers of adolescents ages 11â16 years with (1) autism, (2) ADHD, or (3) autism and clinically-elevated ADHD symptoms (Autism + ADHD). Our findings demonstrated differences in all three domains of family functioning across these diagnostic groups. Mothers of adolescents in the Autism + ADHD group endorsed greater stress than mothers of adolescents in the Autism alone group. Parenting efficacy and the household context were poorest (i.e., low efficacy and high chaos) among mothers of adolescents with ADHD and significantly greater than in the Autism alone group. Given our results, we highlight the importance of accounting for co-occurring symptomatology in these populations in research and clinical practice. This will help to accurately capture unique needs of the family system and make appropriate treatment recommendations that leverage familiesâ strengths and are sensitive to family stressors
Behavioral Inhibition and Activation as a Modifier Process in Autism Spectrum Disorder: Examination of Selfâreported BIS/BAS and alpha EEG Asymmetry
The Modifier Model of autism spectrum disorder (ASD) suggests that phenotypic variability within ASD is rooted in modifier processes, such as the behavioral inhibition system (BIS) and behavioral activation system (BAS). Among a sample of 53 adolescents with ASD, this study examined associations between (a) self-reported BIS/BAS and frontal and parietal alpha electroencephalogram asymmetry and whether these indices related to (b) ASD severity (via the Autism Quotient), and/or (c) co-occurring anxiety and attention-deficit hyperactivity disorder (via Youth Self Report and Child Behavior Checklist). Findings showed that alpha asymmetry was associated with self-reported BAS scores, such that greater BAS was related to greater right-frontal hemisphere activation and relatively greater left-parietal hemisphere activation. Additionally, associations emerged between ASD severity and self-reported BAS and alpha asymmetry, and between anxiety symptoms and self-reported BIS and alpha asymmetry. Furthermore, mediation analyses revealed that BAS mediated the association between asymmetry and autism severity. Therefore, alpha asymmetry and BIS/BAS activity may provide insight into how ASD presents in adolescence as well as who might be at greater risk for developing co-occurring psychopathologies. This study highlights the importance of considering motivational systems to elucidate individual differences among youth with ASD and working toward the longer term goal of better understanding differential responses to treatment. Autism Research 2018, 11: 1653â1666. © 2018 International Society for Autism Research, Wiley Periodicals, Inc. Lay Summary
Differences in the likelihood to avoid (behavioral inhibition system; BIS) or approach (behavioral activation system; BAS) situations are thought to relate to patterns of brain activity (via electroencephalogram asymmetry asymmetry). This study revealed that these tendencies may influence the presentation of autism spectrum disorder (ASD) and symptoms of anxiety in adolescents with ASD