Anxiety and Its Manifestations in Autism Spectrum Disorders

Anxiety is one of the most common co-occurring conditions in individuals with autism spectrum disorder (ASD), affecting social engagement, learning and quality of life across the lifespan. Presentations range from specific phobias and separation anxiety in childhood to generalized anxiety and panic in adolescence and adulthood. Underlying mechanisms include atypical sensory processing, difficulties in recognising and labelling emotions (alexithymia), a heightened intolerance of uncertainty and rigid cognitive styles such as dichotomous thinking. These factors interact to amplify perceptions of threat in everyday situations, leading to avoidance behaviours, increased physiological arousal and elevated stress responses. Recognition of these patterns has driven the development of tailored assessment tools and interventions, spanning parent-mediated programmes, cognitive-behavioural adaptations and environment-based supports in educational and community settings. A deeper understanding of anxiety in ASD holds promise for reducing functional impairment and enhancing long-term well-being.

Research from Nature Portfolio

Recent studies have begun to uncover how core autistic traits shape cognitive vulnerabilities that contribute to anxiety. One investigation demonstrated that intolerance of uncertainty mediates a shift towards dichotomous thinking in autistic adults. This work revealed that greater difficulty in tolerating ambiguity not only fuels all-or-nothing thought patterns but also correlates with self-reported anxiety levels. By mapping these cognitive links, the study offers potential targets for interventions designed to cultivate flexibility in thought and reduce anxiety through modulation of uncertainty tolerance.

Anxiety and Its Manifestations in Autism Spectrum Disorders publication trend

The graph below shows the total number of articles in anxiety and its manifestations in autism spectrum disorders across all publications each year (not limited to Nature Index journals).

Technical terms

Autism Spectrum Disorder (ASD): Neurodevelopmental condition characterised by differences in social communication and restricted or repetitive patterns of behaviour.

Intolerance of Uncertainty (IU): Cognitive tendency to perceive ambiguous or unpredictable situations as threatening, often leading to heightened anxiety.

Alexithymia: Difficulty in recognising, describing and differentiating one’s own emotional states, commonly observed in autism and linked to increased anxiety.

Dichotomous Thinking: Cognitive style marked by viewing experiences in extremes or “all-or-nothing” categories, reducing flexibility in interpretation.

Sensory Processing Differences: Atypical responses to sensory stimuli—such as hypersensitivity or hyposensitivity—that can exacerbate emotional dysregulation and anxiety.

References

1. The relationshipbetween anxiety and social outcomes in autistic children and adolescents: A meta-analysis. Clinical Child and Family Psychology Review (2023).
2. Examining a model of anxiety in autistic adults. Autism (2023).
3. Development and psychometric properties of the Clinical Anxiety Scale for People with Intellectual Disabilities (ClASP-ID). Journal of Neurodevelopmental Disorders (2024).
4. Autistic traits associated with dichotomic thinking mediated by intolerance of uncertainty. Scientific Reports (2023).