According to a new study, those with psychopathic characteristics are less likely to react to a contagious yawn as their more empathetic peers.
Researchers investigate the biological aspects of yawning and consider why yawning is so contagious.
According to a new Current Biology study, contagious yawning is triggered by primitive reflexes in the primary motor cortex.
Perceptual ability is more closely related to contagious yawning than empathy, researchers find.
The neural basis for a preference of yawning is apparent in babies as young as 5 months.
