Dissociation in How Core Autism Features Relate to Interoceptive Dimensions: Evidence from Cardiac Awareness in...

Area of Science:

• Neuroscience
• Developmental Psychology
• Autism Research

Background:

• Interoception, the sense of the body's internal state, is increasingly studied in autism spectrum disorder (ASD).
• Previous research indicates altered objective and subjective interoception in autism, often linked to anxiety.
• The relationship between interoception and core autism features remains unclear.

Purpose of the Study:

• To investigate the association between interoceptive accuracy and sensibility with core autism symptoms.
• To examine how these interoceptive aspects relate to social-affective deficits and repetitive, restricted behaviors in autistic children.

Main Methods:

• Assessed interoceptive accuracy using heartbeat detection tasks in 49 autistic children.
• Measured interoceptive sensibility through subjective self-report of interoceptive awareness.
• Correlated interoceptive measures with Autism Diagnostic Observation Schedule (ADOS) severity and specific symptom domains.

Main Results:

• Interoceptive sensibility showed a significant association with socio-affective features of autism.
• Interoceptive accuracy was found to be related to repetitive and restricted behaviors.
• A dissociation was observed between objective and subjective interoceptive measures and distinct autism symptom clusters.

Conclusions:

• Disparate interoceptive mechanisms may underlie the development and persistence of core autism features.
• Findings suggest distinct neural or cognitive pathways for processing internal bodily signals related to social and behavioral aspects of autism.
• This research highlights the complex role of interoception in the autism phenotype.