Abstract said:Sharing resources is fundamental for human cooperation and survival. People tend to share resources more with individuals they feel close to compared to those who are more socially distant. This decline in generosity at increasing social distance is called social discounting and is influenced by both social traits and abilities, such as empathy, but also by non-social psychological factors, such as decision-making biases.
People who receive a diagnosis of autism show differences in communication and social interaction as well as displaying differences in non-social domains, such as more restricted and repetitive behaviours.
We investigated social discounting in autism and found that autistic adults were more generous than neurotypical participants, especially to socially distant others, such as strangers. Greater autism-related differences in communication, social skills, and attention switching correlated with increased generosity suggesting that both social and non-social aspects of autism contributed to these effects. Additionally, we extend previous work showing that autistic individuals are less susceptible to framing effects – whether monetary decisions are framed as potential losses or gains – supporting the view of ‘enhanced rationality’ in autism.
Our results show that the differences seen in autism, as well as posing certain challenges, can also have prosocial consequences.
Lay Abstract said:Autistic people show differences in their social behaviour. But how autism affects decisions to share resources,
an important part of cooperation, was previously unclear.
In our study, participants made decisions about how to share money with different people, including people they felt close to, such as a friend, and people they felt less close to, such as a stranger. We found that compared to a group of non-autistic participants, autistic adults shared more money, especially with people they felt less close to, such as strangers.
The results suggest that autistic adults were more generous because they made fair decisions more consistently regardless of how close they felt to the person they were sharing with. By showing that autistic adults display greater generosity, our results could help to change public perceptions of autism and potentially improve opportunities for autistic people.
Preprint available at
https://psyarxiv.com/n2mt5/