Autistic Traits Moderate the Impact of Reward Learning on Social Behaviour.
High autistic traits weaken the link between learned social rewards and later prosocial acts.
01Research in Context
What this study did
Panasiti et al. (2016) asked neurotypical adults to play a computer game.
The game taught them that friendly faces gave small money rewards.
Later the team watched how often the same adults chose to help a stranger.
They also measured each person’s level of autistic traits with a short survey.
What they found
People with few autistic traits helped more after they had earned face rewards.
People with many autistic traits did not increase their helping.
Learning the reward was not enough; high traits blocked the transfer to real prosocial acts.
How this fits with other research
Goris et al. (2021) saw the same pattern in a different task.
Their subjects with high traits also earned less money when reward rules kept changing.
Together the two papers show the problem is not lazy learning; the learning itself works, yet the payoff does not spread to new social settings.
Beaurenaut et al. (2024) moved the game online and tested diagnosed autistic adults.
They found no overall group difference, but autism severity still dampened learning in women.
This extends Serena’s story: the brake on social-reward use appears both in mild traits and in clinical autism.
Why it matters
When you run social-skills groups, do not assume that earning praise or prizes will automatically make clients more helpful outside the room.
Check trait levels or autism severity and plan extra practice in real-life settings.
Pair rewards with direct coaching on when and how to act, then measure generalization.
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02At a glance
03Original abstract
A deficit in empathy has been suggested to underlie social behavioural atypicalities in autism. A parallel theoretical account proposes that reduced social motivation (i.e., low responsivity to social rewards) can account for the said atypicalities. Recent evidence suggests that autistic traits modulate the link between reward and proxy metrics related to empathy. Using an evaluative conditioning paradigm to associate high and low rewards with faces, a previous study has shown that individuals high in autistic traits show reduced spontaneous facial mimicry of faces associated with high vs. low reward. This observation raises the possibility that autistic traits modulate the magnitude of evaluative conditioning. To test this, we investigated (a) if autistic traits could modulate the ability to implicitly associate a reward value to a social stimulus (reward learning/conditioning, using the Implicit Association Task, IAT); (b) if the learned association could modulate participants' prosocial behaviour (i.e., social reciprocity, measured using the cyberball task); (c) if the strength of this modulation was influenced by autistic traits. In 43 neurotypical participants, we found that autistic traits moderated the relationship of social reward learning on prosocial behaviour but not reward learning itself. This evidence suggests that while autistic traits do not directly influence social reward learning, they modulate the relationship of social rewards with prosocial behaviour.
Autism research : official journal of the International Society for Autism Research, 2016 · doi:10.1016/j.rasd.2009.03.004