Central Sensitivity Symptoms and Autistic Traits in Autistic and Non-Autistic Adults

Area of Science:

• Neuroscience
• Clinical Psychology
• Public Health

Background:

• Central sensitivity syndromes (CSSs) involve central nervous system sensitization.
• Autistic adults report poorer physical health and higher CSS prevalence.
• Understanding the relationship between autism and CSS is crucial for diagnosis and treatment.

Purpose of the Study:

• To investigate CSS diagnoses and symptoms in autistic and non-autistic adults.
• To determine if CSS symptoms correlate with autistic traits, mental health, sensory sensitivity, age, or gender.
• To explore potential diagnostic overshadowing and underdiagnosis of CSS in autistic populations.

Main Methods:

• Recruited 534 adults with diagnoses of autism, CSS, both, or neither.
• Utilized online self-report validated questionnaires (AQ, CSI, SPQ, PHQ-9, GAD-7).
• Employed statistical analysis to identify predictors of CSS symptoms.

Main Results:

• Autistic individuals without diagnosed CSS showed significantly elevated CSS symptoms.
• Non-autistic individuals with CSS exhibited increased autistic traits.
• Sensory sensitivity, anxiety, autistic traits, age, and gender predicted CSS symptoms.

Conclusions:

• Significant symptom overlap suggests potential underdiagnosis or misdiagnosis of CSS in autistic adults.
• Increased clinical awareness of the autism-CSS association is vital for accurate diagnosis and improved patient care.
• Interplay between symptoms may exacerbate or mask conditions, impacting diagnosis and treatment.