Related Experiment Video
Updated: Jun 8, 2026

A Laboratory Method to Measure Contagious Yawning in Rats
Published on: June 14, 2019
Contagious yawning in autistic and typical development
Molly S Helt1, Inge-Marie Eigsti, Peter J Snyder
1Department of Psychology, University of Connecticut, 406 Babbidge Road, Storrs, CT 06269, USA. molly.helt@uconn.edu
Insights
Contagious yawning emerges significantly by age 4 in children. Children with autism spectrum disorder (ASD) show reduced susceptibility, with Pervasive Developmental Disorder, Not Otherwise Specified (PDD-NOS) being less affected than full Autistic Disorder.
Area of Science:
- Developmental Psychology
- Neuroscience
- Social Cognition
Background:
- Contagious yawning is a social phenomenon linked to empathy and mimicry.
- Understanding its developmental trajectory and variations in neurodevelopmental disorders is crucial.
Purpose of the Study:
- To investigate the developmental emergence of contagious yawning in typically developing children.
- To examine contagious yawning susceptibility in children with autism spectrum disorders (ASD) and Pervasive Developmental Disorder, Not Otherwise Specified (PDD-NOS).
Main Methods:
- Assessed contagious yawning frequency in 120 children aged 1-6 years.
- Evaluated contagious yawning in 28 children with ASD (aged 6-15 years) and compared them to age- and mental age-matched controls.
- Compared susceptibility between children with ASD, PDD-NOS, and full Autistic Disorder.
Main Results:
- Contagious yawning frequency significantly increased around 4 years of age.
- Children with ASD exhibited diminished susceptibility to contagious yawning compared to controls.
- Children with PDD-NOS were more susceptible than those with full Autistic Disorder.
Conclusions:
- Contagious yawning develops significantly in early childhood.
- Reduced susceptibility in ASD suggests a potential link between contagious yawning, mimicry, and social-emotional processing.
- Findings offer insights into the nuances of social contagion in different autism spectrum presentations.
Abstract:
The authors tested susceptibility to contagious yawning in 120 children, 1-6 years, to identify the time course of its emergence during development. Results indicated a substantial increase in the frequency of contagious yawning at 4 years. In a second study, the authors examined contagious yawning in 28 children with autism spectrum disorders (ASD), 6-15 years. Children with ASD showed diminished susceptibility to contagious yawning compared with 2 control groups matched for mental and chronological age, respectively. In addition, children diagnosed with Pervasive Developmental Disorder, Not Otherwise Specified (PDD-NOS) a milder variant of autism, were more susceptible to contagious yawning than were children diagnosed with full Autistic Disorder. The authors explore the implications of these findings for theories about the development of mimicry and emotional contagion.
Related Concept Videos
Nonconscious Mimicry
Autism Spectrum Disorder
These core symptoms manifest differently among individuals, ranging from mild to severe. The disorder's complexity extends beyond its clinical presentation, encompassing a diverse range of biological, cognitive, and sociocultural influences.
Sleep-Wake Cycles
NREM Sleep
NREM sleep comprises four progressive stages that seamlessly merge:
REM Sleep Behavior Disorder
RBD is significantly associated with...
Socioemotional Development during Infancy
Primary Temperament Types
Stella Chess...
Sleepwalking and Sleep Talking
Factors that increase the likelihood of sleepwalking include sleep deprivation and alcohol consumption. Contrary to common beliefs, it is safe...

