Physiological and Communicative Emotional Discordance in Children on the Autism Spectrum

Research conducted at the Children's Hospital of Philadelphia has shed new light on the emotional experiences of children on the autism spectrum. The study, published in the Journal of Neurodevelopmental Disorders, found that children with autism commonly exhibit differences in expressing emotions, often showing reduced physiological reactivity in emotional contexts. This discrepancy between internal and external emotional expressions may lead to missed learning opportunities for teaching emotional communication and regulation. The findings suggest that wearable biosensors could facilitate interventions in children on the autism spectrum.

Key Takeaways:

• Children on the autism spectrum commonly exhibit differences in expressing emotions, often showing reduced physiological reactivity in emotional contexts.
• The study found no group differences in physiological arousal (heart rate) or in communicative expressions of stress to the stress task between children with autism and typically developing children.
• For typically developing children, physiological arousal during the stress task was associated with vocal expressions in preschoolers and facial and bodily expressions in school-aged children.
• In contrast, children with autism showed no association between physiological arousal during the stress tasks and communicative expressions across age groups.
• The study suggests that children with autism may experience emotional disconcordance, where their internally experienced stress is not reflected in their communicative expressions.
• Wearable biosensors may facilitate interventions in children on the autism spectrum by helping teachers and caregivers identify and address emotional disconcordance.

Statistics:

• 41 children with autism and 39 non-autistic, typically developing children participated in the study.
• The study included two age groups: 2-4 years and 8-12 years.
• The Children's Alexithymia Measure was used to assess alexithymia traits in school-aged children.
• The study found no significant differences in physiological arousal (heart rate) between children with autism and typically developing children.
• The correlation between physiological arousal and communicative expressions for typically developing children was as follows:

+ In preschoolers: physiologically arousal was associated with vocal expressions (r = 0.51, p < 0.01).

+ In school-aged children: physiologically arousal was associated with facial and bodily expressions (r = 0.63, p < 0.001).

• For children with autism, no association was found between physiologically arousal and communicative expressions across age groups.

Sources:

• Physiological and communicative emotional disconcordance in children on the autism spectrum. Journal of Neurodevelopmental Disorders, 2024, 16(1):1-14. (Journal of Neurodevelopmental Disorders - http://www.jneurodevdisorders.com/).
• Children's Hospital of Philadelphia, Autism, Neurology, Pediatrics, Mental Health, Health and Medicine, Developmental Disabilities, Developmental Diseases and Conditions.