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Decision Making01:20

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Decision-making is a fundamental cognitive process that involves evaluating alternatives and selecting among them. This process can range from simple choices, such as deciding what to wear, to complex decisions, like choosing a major in college or a career path. The complexity of the decision often dictates the approach we use, which can be broadly categorized into two types: automatic and controlled decision-making.
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Related Experiment Video

Updated: Jan 30, 2026

The Collective Trust Game: An Online Group Adaptation of the Trust Game Based on the HoneyComb Paradigm
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Catecholaminergic modulation of trust decisions.

Cătălina E Rățală1,2, Sean J Fallon3, Marieke E van der Schaaf3,4

  • 1Rotterdam School of Management, Erasmus University Rotterdam, Rotterdam, 3062, PA, The Netherlands. C.Ratala@donders.ru.nl.

Psychopharmacology
|February 2, 2019
PubMed
Summary

Methylphenidate (MPH) selectively reduced trust decisions towards untrustworthy partners in a social trust game. This indicates MPH impacts decision-making context-specifically, influencing social interactions.

Keywords:
CatecholaminesDecision-makingMethylphenidateRitalinSocial learningTrustTrust Game

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Area of Science:

  • Neuroscience
  • Social Psychology
  • Behavioral Economics

Background:

  • Trust is fundamental to social interactions.
  • Trustworthiness assessments integrate past experiences and facial feature biases.
  • Catecholamine neurotransmission plays a role in social decision-making.

Purpose of the Study:

  • Investigate the impact of catecholamine (dopamine, noradrenaline) transmission on trust decisions.
  • Examine how methylphenidate (MPH) influences trust based on partner behavior and facial cues.
  • Understand the context-specific effects of MPH on social trust.

Main Methods:

  • Administered methylphenidate (MPH) or placebo to participants (N=24).
  • Participants played the Trust Game, an economic task assessing investment decisions.
  • Manipulated facial trustworthiness (high, low, non-social) and reciprocation likelihood (high, low) of game partners.

Main Results:

  • Methylphenidate (MPH) did not significantly alter overall investment amounts.
  • MPH selectively decreased investments towards game partners low in facial trustworthiness and reciprocation likelihood.
  • This suggests MPH's effect on trust is context-dependent.

Conclusions:

  • Methylphenidate (MPH) administration modulates social trust decisions.
  • The impact of MPH on trust is specific to the perceived trustworthiness and reciprocation patterns of interaction partners.
  • Findings highlight the nuanced role of catecholamine systems in social cognition and decision-making.