Abstract We examined social cognition in 32 monozygotic (MZ) and 21 dizygotic (DZ) twin pairs concordant or discordant for a schizophrenia spectrum diagnosis and healthy control (HC) twin pairs (29 MZ/20 DZ).All participants Dessert Cups were recruited through the Danish registers.Patients showed several deficits in the ability to detect sarcasm.
Impairments were also observed in the unaffected MZ co-twins, indicating that social cognitive deficits could be a genetic vulnerability indicator of the disease.Worse social cognition was associated with lower Mustard Made Baskets intelligence and higher levels of psychopathology in patients.