When Helping Is Risky: The Behavioral and Neurobiological Trade-off of Social and Risk Preferences.

Area of Science:

• Neuroscience
• Decision Science
• Psychology

Background:

• Helping behavior can involve personal risk, particularly in professions like medicine.
• Decisions to help are influenced by an individual's social preferences (valuing others' well-being) and risk preferences (acceptable personal risk).
• Understanding the integration of these preferences in risky helping situations is crucial.

Purpose of the Study:

• To investigate the psychological and neurobiological integration of social and risk preferences in risky helping decisions.
• To examine the effects of methylphenidate and atomoxetine on risky helping behavior and underlying preferences.

Main Methods:

• Study 1: Employed incentivized decision-making tasks with 292 adults to assess social and risk preferences in risky helping.
• Study 2: Administered methylphenidate, atomoxetine, or placebo to 154 adults to investigate the neurobiological underpinnings, manipulating dopamine and norepinephrine levels.
• Utilized behavioral economics tasks and pharmacological interventions to measure helping decisions and preference alterations.

Main Results:

• Social and risk preferences independently predict engagement in risky helping behavior.
• Methylphenidate significantly increased risky helping, primarily by altering risk preferences, not social preferences.
• Atomoxetine had no significant effect on risk preferences, social preferences, or risky helping behavior.

Conclusions:

• Risky helping decisions are modulated by distinct social and risk preferences.
• Methylphenidate's enhancement of risky helping is mediated by its effects on dopamine-related risk preference processing.
• The findings highlight the role of specific neurotransmitter systems, particularly dopamine, in modulating altruistic decisions under risk.