PNAS

Paper reading: Cognitive processes of ingroup favoritism across 20 countries

Using webcam eye-tracking technology to explore cognitive processes and cultural differences in in-group preferences across 20 countries and 1,850 participants

Nov 22, 2025

Paper reading: No gender differences in attraction to young partners: A study of 4,500 blind dates

The PNAS 2025 study analyzed 4,500 blind dates and found that both men and women tend to be attracted to younger objects, and there is no gender difference, challenging the traditional view that "men love young men and women love older men."

Oct 29, 2025