237 research outputs found
Applying the Vulnerability Stress Adaptation Model of Marriage to Couples Raising an Autistic Child: A Call for Research on Adaptive Processes
Parents of children on the autism spectrum are particularly susceptible to strain in their romantic relationships due to unique risk factors. While some relationships deteriorate, however, others endure and thrive. The Vulnerability Stress Adaptation (VSA) Model of Marriage (Karney & Bradbury, 1995; Fig. 1) offers a framework to explain, not only poor marital outcomes, but also the process by which degradation of relationships occurs over time. The VSA Model posits that a combination of internal (within-person) vulnerabilities and external stressors influence relationship quality and, in turn, stability, by affecting couples\u27 abilities to collaborate to adapt to stressors and solve problems (i.e., adaptive processes). With robust theoretical grounding, this review comprehensively summarizes and integrates literature pertaining to the romantic relationships of couples raising an autistic child through the lens of the VSA Model. Vulnerabilities, stressors, and adaptive processes relevant to these couples are identified, and empirical evidence pertaining to the proposed pathways in the VSA Model is explored. The body of research reviewed provides support for many of the proposed pathways in the VSA Model, especially related to certain stressors (i.e., child behavior problems) and vulnerabilities (i.e., parent depression), yet it falls short in exploring mechanisms by which these factors beget marital dysfunction (i.e., through adaptive processes). Additional gaps and methodological limitations in the literature are highlighted, and recommendations for future research are provided
Horizontal tuning for faces originates in high-level Fusiform Face Area
Recent work indicates that the specialization of face visual perception relies on the privileged processing of horizontal angles of facial information. This suggests that stimulus properties assumed to be fully resolved in primary visual cortex (V1; e.g., orientation) in fact determine human vision until high-level stages of processing. To address this hypothesis, the present fMRI study explored the orientation sensitivity of V1 and high-level face-specialized ventral regions such as the Occipital Face Area (OFA) and Fusiform Face Area (FFA) to different angles of face information. Participants viewed face images filtered to retain information at horizontal, vertical or oblique angles. Filtered images were viewed upright, inverted and (phase-)scrambled. FFA responded most strongly to the horizontal range of upright face information; its activation pattern reliably separated horizontal from oblique ranges, but only when faces were upright. Moreover, activation patterns induced in the right FFA and the OFA by upright and inverted faces could only be separated based on horizontal information. This indicates that the specialized processing of upright face information in the OFA and FFA essentially relies on the encoding of horizontal facial cues. This pattern was not passively inherited from V1, which was found to respond less strongly to horizontal than other orientations likely due to adaptive whitening. Moreover, we found that orientation decoding accuracy in V1 was impaired for stimuli containing no meaningful shape. By showing that primary coding in V1 is influenced by high-order stimulus structure and that high-level processing is tuned to selective ranges of primary information, the present work suggests that primary and high-level levels of the visual system interact in order to modulate the processing of certain ranges of primary information depending on their relevance with respect to the stimulus and task at hand
Brief Report: Does Gender Matter in Intervention for ASD? Examining the Impact of the PEERSÂŽ 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: PEERSÂŽ 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 PEERSÂŽ intervention
Changes in Depressive Symptoms Among Adolescents with ASD Completing the PEERSÂŽ Social Skills Intervention
Depression is a common concern among people with autism spectrum disorder (ASD) and is often associated with social skills and relationship challenges. The present data, from a randomized controlled trial, examined the effect of PEERSÂŽ on self-reported depressive symptoms via the Childrenâs Depression Inventory (CDI) among 49 adolescents with ASD. Findings revealed that many CDI subscale scores declined (pâsâ\u3câ0.05) and were related to direct social contact on the Quality of Socialization Questionnaire at posttest (pâsâ\u3câ0.05). Exploratory analyses uncovered that suicidality was less evident following PEERSÂŽ. Findings support the notion that social functioning and depression may be intimately intertwined in ASD; therefore, bolstering social skills in ASD may positively influence other domains of functioning, including mental health
Examining the Links Between Challenging Behaviors in Youth with ASD and Parental Stress, Mental Health, and Involvement: Applying an Adaptation of the Family Stress Model to Families of Youth with ASD
Raising a child with autism spectrum disorder (ASD) poses unique challenges that may impact parentsâ mental health and parenting experiences. The current study analyzed self-report data from 77 parents of youth with ASD. A serial multiple mediation model revealed that parenting stress (SIPA) and parental mental health (BAI and BDI-II) appears to be impacted by challenging adolescent behaviors (SSIS-PBs) and, in turn, affect parental involvement (PRQ), controlling for social skills (SSIS-SSs). Further, the study explored the malleability of parentsâ mental health over the course of a social skills intervention, and provides modest evidence that parent depressive symptoms decline across intervention. This study illustrates the importance of considering the entire family system in research on youth with ASD
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
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
Histone-like TAFs within the PCAF Histone Acetylase Complex
AbstractPCAF histone acetylase plays a role in regulation of transcription, cell cycle progression, and differentiation. Here, we show that PCAF is found in a complex consisting of more than 20 distinct polypeptides. Strikingly, some polypeptides are identical to TBP-associated factors (TAFs), which are subunits of TFIID. Like TFIID, histone foldâcontaining factors are present within the PCAF complex. The histone H3â and H2Bâlike subunits within the PCAF complex are identical to those within TFIID, namely, hTAFII31 and hTAFII20/15, respectively. The PCAF complex has a novel histone H4âlike subunit with similarity to hTAFII80 that interacts with the histone H3âlike domain of hTAFII31. Moreover, the PCAF complex has a novel subunit with WD40 repeats having a similarity to hTAFII100
Tissue inhibitor of metalloproteinase-1 (TIMP-1) regulates mesenchymal stem cells through let-7f microRNA and Wnt/β-catenin signaling
Tissue inhibitor of metalloproteinases 1 (TIMP-1) is a matrix metalloproteinase (MMP)-independent regulator of growth and apoptosis in various cell types. The receptors and signaling pathways that are involved in the growth factor activities of TIMP-1, however, remain controversial. RNA interference of TIMP-1 has revealed that endogenous TIMP-1 suppresses the proliferation, metabolic activity, and osteogenic differentiation capacity of human mesenchymal stem cells (hMSCs). The knockdown of TIMP-1 in hMSCs activated the Wnt/β-catenin signaling pathway as indicated by the increased stability and nuclear localization of β-catenin in TIMP-1âdeficient hMSCs. Moreover, TIMP-1 knockdown cells exhibited enhanced β-catenin transcriptional activity, determined by Wnt/β-catenin target gene expression analysis and a luciferase-based β-cateninâ
activated reporter assay. An analysis of a mutant form of TIMP-1 that cannot inhibit MMP indicated that the effect of TIMP-1 on β-catenin signaling is MMP independent. Furthermore, the binding of CD63 to TIMP-1 on the surface of hMSCs is essential for the TIMP-1âmediated effects on Wnt/β-catenin signaling. An array analysis of microRNAs (miRNAs) and transfection studies with specific miRNA inhibitors and mimics showed that let-7f miRNA is crucial for the regulation of β-catenin activity and osteogenic differentiation by TIMP-1. Let-7f was up-regulated in TIMP-1âdepleted hMSCs and demonstrably reduced axin 2, an antagonist of β-catenin stability. Our results demonstrate that TIMP-1 is a direct regulator of hMSC functions and reveal a regulatory network in which let-7f modulates Wnt/β-catenin activity
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