The Brain that Understands Different Cultures: Brain Microstructure Measured by MRI Correlates with Cultural Intelligence

Abstract

In today's world of increasing globalization, the importance of cultural intelligence (CQ), a necessary ability for cross-cultural adaptation, is becoming more and more recognized. Therefore, the purpose of this paper is to clarify the relationship between brain microstructure and CQ. In this study, we analyzed the relationship between fractional anisotropy (FA) of the posterior thalamic radiation (PTR), inferior cerebellar peduncle (ICP), and fornix and CQ using data from 310 healthy men and women collected in Japan. The results showed that Motivational CQ, Behavioral CQ, and Overall CQ were significantly related to FA of PTR, ICP and fornix. Results indicate that brain microstructure involved in motivation, behavior, and cognition correlates with motivational and behavioral aspects of CQ. This is the first study to clarify the relationship between cultural intelligence and brain structure.