Related Experiment Video
Updated: Mar 20, 2026
09:13
Testing Sensory and Multisensory Function in Children with Autism Spectrum Disorder
Published on: April 22, 2015
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Alexithymia, not autism, is associated with impaired interoception
Punit Shah1, Richard Hall2, Caroline Catmur3
1MRC Social, Genetic and Developmental Psychiatry Centre, Institute of Psychiatry, Psychology and Neuroscience, King's College London, University of London, UK.
Summary
Difficulties with interoception, or sensing the body's internal state, are not a core feature of Autism Spectrum Disorder (ASD). Instead, these challenges are linked to alexithymia, a condition often co-occurring with ASD.
Area of Science:
- Neuroscience
- Psychology
- Developmental Science
Background:
- Autism Spectrum Disorder (ASD) is often associated with impaired interoception, potentially explaining socio-emotional deficits.
- Alexithymia, characterized by difficulty recognizing emotions from bodily sensations, is also linked to atypical interoception.
- High rates of alexithymia in ASD suggest it may explain interoceptive difficulties attributed to ASD.
Purpose of the Study:
- To investigate the distinct contributions of alexithymia and ASD to interoceptive accuracy (IA).
- To determine if interoceptive impairments are a direct characteristic of ASD or a consequence of co-occurring alexithymia.
Main Methods:
- Two experiments were conducted to assess interoceptive accuracy.
- Participants' levels of autistic traits and alexithymia were evaluated.
- The relationship between alexithymia, autistic traits, and IA was analyzed.
Main Results:
- Alexithymia, not autism, was significantly associated with atypical interoception.
- The findings suggest that interoceptive deficits are not inherent to ASD.
- Co-occurring alexithymia appears to be the primary driver of interoceptive difficulties in autistic individuals.
Conclusions:
- Interoceptive impairments are not a core feature of Autism Spectrum Disorder.
- Alexithymia, frequently found in individuals with ASD, is strongly linked to atypical interoception.
- Future research should consider alexithymia when examining interoceptive processing in ASD populations.
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