Overview
- A peer‑reviewed University of Sussex study published this month used fMRI while 25 mainly British volunteers read 200 real headlines about life‑threatening events at home and in 56 other countries.
- Across several empathy‑linked brain regions, neural activity broadly decreased as the number of people at risk rose, a pattern the authors describe as a collapse of responsiveness to large-scale human crises.
- For foreign victims the brain showed an inverted‑U response: very low activity for single individuals, higher responses for moderate group sizes, and a renewed collapse for the largest tragedies.
- Brain areas tied to emotional response registered stronger reactions to deaths than survivals only for home‑country victims, while responses to monetary stakes scaled up with larger sums in a separate money‑allocation task.
- The authors stress major limits: the sample was small (n=25), skewed toward UK participants, tested in lab conditions with some post hoc analyses, and needs larger, diverse replications before any policy changes.