A Mind-Reader Does Not Always Have Deontological Moral Judgments and Prosocial Behavior: A Developmental Perspective

Area of Science:

• Developmental Psychology
• Moral Psychology
• Cognitive Science

Background:

• Rationalistic morality theories posit reasoning's crucial role in moral judgments and prosocial behavior.
• Theory of mind (ToM), a key reasoning ability, is often linked to moral development.
• The consistent association between ToM and morality across the lifespan remains underexplored.

Purpose of the Study:

• To investigate the developmental trajectories of ToM, moral judgments, and prosocial behavior.
• To examine the associations between ToM and morality from middle childhood to late adulthood.
• To enrich rationalistic theories of morality with a developmental perspective.

Main Methods:

• Participants: 204 individuals across four age groups (children, adolescents, younger adults, older adults).
• Measures: ToM (strange stories), moral judgments (trolley dilemmas), prosocial behavior (helping request task).
• Analysis: Examination of developmental trends and correlations between ToM and morality measures.

Main Results:

• Distinct developmental trajectories observed for ToM (quadratic), deontological moral judgments (quadratic/cubic), and helping behavior (linear decline).
• Age-specific correlations: ToM negatively correlated with deontological judgments in children, adolescents, and older adults, but positively in younger adults.
• ToM positively correlated with helping behavior in children, negatively in adolescents, with relationships diminishing in adulthood.

Conclusions:

• Theory of mind's relationship with morality is not consistently positive or unchanging throughout development.
• ToM can facilitate or hinder deontological moral judgments and prosocial behavior depending on age and context.
• ToM appears to be a permanent factor in moral judgment development but a temporary one for prosocial behavior development.