By studying the injuries and aptitudes of Vietnam War veterans who suffered penetrating head wounds during the war, researchers have found that brain regions that contribute to optimal social functioning are also vital to general intelligence and emotional intelligence. This finding, reported in the journal Brain, bolsters the view that general intelligence emerges from the emotional and social context of one’s life. “We are trying to understand the nature of general intelligence and to what extent our intellectual abilities are grounded in social cognitive abilities,” said Aron Barbey, a University of Illinois professor of neuroscience, psychology, and speech and hearing science.
Studies in social psychology indicate that human intellectual functions originate from the social context of everyday life, Barbey said. “We depend at an early stage of our development on social relationships — those who love us care for us when we would otherwise be helpless.” Social interdependence continues into adulthood and remains important throughout the lifespan. “Our friends and family tell us when we could make bad mistakes and sometimes rescue us when we do. “And so the idea is that the ability to establish social relationships and navigate the social world is not secondary to a more general cognitive capacity for intellectual function, but that it may be the other way around. Intelligence may originate from the central role of relationships in human life and therefore may be tied to social and emotional capacities.”