The perceived casual relations between sensory reactivity differences and anxiety symptoms in autistic adults

Rates of anxiety are inordinately high in autistic adults. Sensory reactivity differences, such as hyperreactivity (e.g., strong reactions to sound), hyporeactivity (e.g., no, or slower reactions to pain), and seeking (e.g., fascination with spinning objects) are a diagnostic criterion of autism and have been linked with anxiety. Understanding how individuals perceive these to be causally related can impact assessment and treatment of anxiety. Therefore, we examined the perceived causal relations between sensory reactivity differences and anxiety in autistic adults.246 autistic adults aged 18 – 76 years took part in an online study. They completed self-report assessments of sensory reactivity differences, and anxiety, followed by the perceived causal relations scale; indicating if they perceived their sensory reactivity differences to be more of a cause or an effect of their anxiety symptoms.Sensory reactivity differences were found to be significantly related to anxiety. Furthermore, total sensory hyperreactivity and visual, auditory, and olfactory hyperreactivity was perceived to be more of a cause of anxiety, whilst total sensory seeking and tactile and vestibular seeking was perceived to be more of an effect of anxiety. Therefore, sensory hyperreactivity and sensory seeking may be important to consider in anxiety treatments for autistic individuals.

Atypically slow processing of faces and non-faces in older autistic adults

Face recognition is a fundamental function that requires holistic processing. Differences in face processing have been consistently identified in autistic children, but it is unknown whether these differences persist across the adult lifespan. Using event-related functional magnetic resonance imaging, we measured holistic face processing with a rapid Mooney faces task in 50 autistic and 49 non-autistic participants (30–74 years). Behavioral tasks included a self-paced version of the same paradigm and a global–local processing task (Navon). Reduced detection rates for faces, but not non-faces, were found in autistic adults, including slower responses on all conditions. Without time constraints, differences in accuracy disappeared between groups, although reaction times in correctly identifying faces remained higher in autistic adults. The functional magnetic resonance imaging results showed lower activation in the left and right superior frontal gyrus in the autism group but no age-related differences. Overall, our findings point toward slower information processing speed rather than a face recognition deficit in autistic adults. This suggests that face-processing differences are not a core feature of autism across the adult lifespan. Lay abstract Some theories suggested that social difficulties in autism arise from differences in the processing of faces. If face-processing difficulties are central to autism, then they should be as persistent as social difficulties across the lifespan. We tested this by asking autistic and neurotypical participants between 30 and 75 years to complete face detection tasks. Both autistic and neurotypical adults responded more slowly with age. When participants had to respond quickly, autistic adults made more errors in face detection regardless of their age. However, when the time constraint was removed, autistic adults performed as well as the neurotypical group. Across tasks, autistic adults responded more slowly when asked to detect both face and non-face stimuli. We also investigated brain activation differences in the face detection task with functional magnetic resonance imaging. The results indicated lower activation in the autism group in the left and right superior frontal gyrus. The superior frontal gyrus is not typically implicated in face processing but in more general processing, for example, keeping instructions in mind and following them. Together with the behavioral results, this suggests that there is no specific deficit in face processing in autistic adults between 30 and 75 years. Instead, the results suggest differences in general processing, particularly in the speed of processing. However, this needs to be investigated further with methods that are more sensitive to the timing of brain activation.

Cerebral [18F]-FDOPA Uptake in Autism Spectrum Disorder and Its Association with Autistic Traits

Dopaminergic signaling is believed to be related to autistic traits. We conducted an exploratory 3,4-dihydroxy-6-[18F]-fluoro-L-phenylalanine positron emission tomography/computed tomography ([18F]-FDOPA PET/CT) study, to examine cerebral [18F]-FDOPA influx constant (kicer min−1), reflecting predominantly striatal dopamine synthesis capacity and a mixed monoaminergic innervation in extrastriatal neurons, in 44 adults diagnosed with autism spectrum disorder (ASD) and 22 controls, aged 18 to 30 years. Autistic traits were assessed with the Autism Spectrum Quotient (AQ). Region-of-interest and voxel-based analyses showed no statistically significant differences in kicer between autistic adults and controls. In autistic adults, striatal kicer was significantly, negatively associated with AQ attention to detail subscale scores, although Bayesian analyses did not support this finding. In conclusion, among autistic adults, specific autistic traits can be associated with reduced striatal dopamine synthesis capacity. However, replication of this finding is necessary.

Exploring Autistic Adults’ Psychosocial Experiences Affecting Beginnings, Continuity, and Change in Camouflaging Over Time- A Qualitative Study

Many autistic people develop camouflaging strategies to mask or compensate for their underlying autism-related differences in order to get by in predominantly non-autistic societies. Autistic adults have described camouflaging as a “lifetime of conditioning to act normal”, suggesting that camouflaging develops over the autistic person’s lifespan. Yet, very little is so far known about the course of camouflaging motivations and behaviours over time or the psychosocial factors that may influence autistic people’s camouflaging trajectories. In an exploratory qualitative study within an Asian sociocultural context, we interviewed 11 Singaporean autistic adults in depth about their camouflaging experiences throughout their lives. We aimed to better understand the beginnings, continuity and changes in their camouflaging motivations and strategies over time, and related psychosocial influences. Interviews were transcribed verbatim and thematically analysed. Twenty-six themes were identified, and were organised across four phases - pre-camouflaging, beginnings, continuity, and change over time. The earliest camouflaging motivations were predominantly relational, linked to a negative self-identity shaped by adverse social experiences. Strategies were increasingly complex and better integrated into one’s sense of self over time, or more selectively engaged in. Our findings highlight the role of psychosocial pressures precipitating camouflaging. They also emphasise the need for both individual psychological and societal-level changes to move from pathologizing autistic differences to acceptance, understanding, and inclusion, so as to reduce psychosocial pressures on autistic people of all ages to camouflage.

Barriers to Accessing Healthcare: Perspectives from Autistic Adults and Carers

Autistic adults have higher health needs compared to most, yet they continue to experience barriers to accessing appropriate healthcare. Presently, no qualitative research exists exploring these barriers which impact overall physical and mental health. We conducted a qualitative analysis in Victoria (Australia) of the perceived experiences of healthcare access for autistic adults ( n = 9) and primary caregivers of autistic adults ( n = 7). Specifically, a three-staged phenomenological approach was applied involving: (i) a communicative checklist, (ii) a health status survey and (iii) face-to-face interviews. Elements such as support, responsibilities and protective factors exhibited by caregivers, may impact healthcare access for autistic adults. Results indicate the need for further research exploring interdependent factors that impact healthcare access by caregivers, so evidence-based interventions can be developed to support caregivers in the future.

Stakeholder informed development of the Emotion Awareness and Skills Enhancement team–based program (EASE-Teams)

Emotion dysregulation (ED) underlies psychiatric symptoms and impedes adaptive responses in autistic individuals. The Emotion Awareness and Skills Enhancement (EASE) program was the first mindfulness-based intervention designed to target emotion dysregulation in autistic adolescents (12–17 years old). This project partnered with stakeholders to adapt EASE for autistic adolescents and adults with co-occurring intellectual disability and autistic elementary-aged children, groups who often benefit from caregiver support in treatment. Over three adaptation phases, we: (1) elicited stakeholder and expert feedback to adapt the original EASE program for autistic individuals with intellectual disability; (2) redesigned the adapted manual and expanded the target age range following a small “micro-trial” with a sample of autistic adolescents and adults with intellectual disability ( n = 6); and (3) demonstrated feasibility and acceptability of a caregiver-client team-based approach (EASE-Teams) in a sample of 10 autistic individuals with and without intellectual disability (ages 7–25) and their caregivers. EASE-Teams was both acceptable and helpful to families. Significant improvements were noted in participant emotion dysregulation, psychiatric symptoms, and caregiver stress from their child’s dysregulation. Findings suggest that EASE-Teams may be appropriate for heterogeneous developmental and cognitive needs. Future research to establish efficacy and refine EASE-Teams with community providers is warranted. Lay abstract Emotion dysregulation (ED) impacts mental health symptoms and well-being in autistic individuals. In prior work, we developed the Emotion Awareness and Skills Enhancement (EASE) to improve emotion dysregulation with autistic adolescents (aged 12–17). The study team partnered with autistic individuals, their caregivers, and expert clinicians to adapt EASE for autistic adolescents and adults with co-occurring intellectual disability and autistic elementary-aged children, groups that often benefit from caregiver support in treatment. In three phases, we (1) gathered caregiver and expert feedback to adapt the original EASE program for autistic adults with intellectual disability, (2) revised the treatment after using it with six autistic adults with intellectual disability, and (3) tested the newly developed caregiver–client team-based treatment, called EASE-Teams, in a small group of 10 autistic individuals with and without intellectual disability (aged 7–25). Families found EASE-Teams to be acceptable and helpful. We found improvements in emotion dysregulation and mental health symptoms for autistic participants. Caregivers reported less stress from their child’s dysregulation after participating. These results show that EASE-Teams can be appropriate for different developmental and cognitive needs. Future studies will need to test the benefits of the treatment in community clinics.

Healthcare service use patterns among autistic adults: A systematic review with narrative synthesis

Autistic adults often experience barriers to healthcare that can cause their healthcare service use to be unique from other populations. We conducted a systematic review to gather the most recent evidence about how often autistic adults use five important healthcare services (the emergency department, hospitalization, outpatient mental health, preventive services, and primary care) compared to populations of non-autistic adults. We searched six electronic research databases for articles. Our search strategy identified N = 2964 unique articles. Ultimately, we included N = 16 articles in our review. Most included studies (N = 13) were high-quality level 3a studies that compared autistic adults’ service use to a non-autistic population comparison group (N = 11), and examined emergency department use (N = 12). Autistic adults most often had equal or higher use of services than population comparison groups across all healthcare services we examined. Although autistic adults had greater use of primary care and preventive services than comparison groups, frequent emergency department visits and hospitalizations may reflect that these services are not adequately meeting autistic adults’ needs. Future research should identify targets for improving autistic adults’ access to and use of primary care and preventive services, which may ultimately reduce frequent use of the emergency department and hospitalizations. Lay abstract Autistic adults often have complex healthcare needs due to factors like having other health conditions, sensory sensitivities, and limited access to healthcare providers who are trained to provide care for them. All these factors may influence the healthcare services that autistic adults use. In this review, we searched six electronic research databases to gather the most recent evidence about how often autistic adults use five important healthcare services (the emergency department, hospitalization, outpatient mental health, preventive services, and primary care) compared to populations of non-autistic adults. A total of 16 articles were ultimately included in this review. Most articles found that autistic adults had equal or higher use of healthcare services than non-autistic adults. Autistic adults frequently used the emergency department and hospital. This may indicate that routine outpatient care in the community is not meeting their needs. Our findings show the importance of improving care at this level for autistic adults to reduce overuse of the emergency department (in this article referred to as ED) and hospital.