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Moral concepts set decision strategies to abstract values.
Svenja Caspers1, Stefan Heim, Marc G Lucas
1Institute of Neuroscience and Medicine (INM-1, INM-2), Research Centre Jülich, Jülich, Germany. s.caspers@fz-juelich.de
Plos One
|April 13, 2011
Summary
Abstract value systems shape brain activity during decision-making. Different moral concepts, like collectivism versus individualism, activate distinct neural pathways, influencing cognitive strategies and brain responses.
Area of Science:
- Neuroscience
- Social Psychology
- Moral Philosophy
Background:
- Value preferences vary among individuals.
- Neuroimaging studies link value-based decisions in conflict to prefrontal and cingulate regions.
- General value preferences represent abstract moral concepts independent of specific situations.
Purpose of the Study:
- To investigate the neurobiological mechanisms underlying decisions based on abstract value systems.
- To determine if superordinate moral concepts influence brain responses during value-based decision-making.
- To explore differing neural strategies associated with individualistic versus collectivistic value preferences.
Main Methods:
- Functional magnetic resonance imaging (fMRI) was employed.
- A forced-choice paradigm using word pairs representing abstract values was utilized.
- Participants' value systems (individualistic vs. collectivistic) were assessed.
Main Results:
- Individuals with collectivistic (altruistic) preferences used a "balancing and weighing" strategy, engaging rostral inferior and intraparietal, midcingulate, and frontal cortex.
- Subjects with individualistic (egocentric) preferences employed a "fight-and-flight" strategy, activating the left amygdala.
- Experiencing value conflict during decision-making (rejecting congruent alternatives) activated midcingulate and dorsolateral prefrontal cortex, similar to moral dilemma responses.
Conclusions:
- Superordinate moral concepts significantly influence decision-making strategies and neural mechanisms, irrespective of specific situational contexts.
- Abstract value systems act as triggers for distinct brain responses, revealing general neural principles in decision processes.
- Findings offer new perspectives for sociological, economic research, and the analysis of social relations by highlighting the role of abstract values.
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