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bioRxiv · 10.1101/2025.07.27.667012

Intracranial Insights into the Developing Neural Basis of Moral Punishment

Hu, K.·Zhang, H.·Cheng, J.·Chen, Y.·Zhang, X.·Bai, C.·Wang, F.·Yao, Y.·Wu, H.
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Abstract

Third-party punishment (TPP) is a critical component of social regulation and justice, in-tegrating moral reasoning and emotional salience. However, the neural developmental basis underpinning this complex process remains largely unknown. Using rare intracranial stereo-electroencephalography (SEEG) in 14 children and 17 adults, we investigated the developing neural circuits of TPP. We found that broad-band gamma activity in the amygdala and ventromedial prefrontal cortex (vmPFC) encodes inferred intentions, with different patterns across age groups. Furthermore, the vmPFC, insula, and inferior parietal lobule (IPL) integrate punishment efficacy, also showing significant developmental differences. Combining task and resting state functional connectivity analyses, we further found age-dependent interactions among the amygdala-insula and IPL-vmPFC neural couplings during decision-making. These findings provide valuable intracranial evidence that the maturation of moral decision-making stems from the developmental refinement of subcortical-cortical circuits that integrate emotional and cognitive evaluations, explaining the shift from intuitive decisions in children to context-sensitive judgments in adults.

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Hu, K., Zhang, H., Cheng, J., Chen, Y., Zhang, X., Bai, C., Wang, F., Yao, Y., Wu, H.. 2025-07-31. Intracranial Insights into the Developing Neural Basis of Moral Punishment. https://doi.org/10.1101/2025.07.27.667012

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