"We found that it is important to consider the motivation to pursue power, beliefs about how much power one has attained, pro-social and aggressive strategies for attaining power, and emotions related to attaining power," said Sheri Johnson, a University of California - Berkeley psychologist and senior author of the study.
In a study of more than 600 young men and women conducted at UC Berkeley, researchers concluded that one's perceived social status - or lack thereof - is at the heart of a wide range of mental illnesses.
"In contrast, people at risk for mania tended to report high levels of pride and an emphasis on the pursuit of power despite interpersonal costs," she said.
Specifically, Johnson and fellow researchers Eliot Tang-Smith of the University of Miami and Stephen Chen of Wellesley College looked at how study participants fit into the "dominance behavioural system."
Dominance behavioural system is a construct in which humans and other mammals assess their place in the social hierarchy and respond accordingly to promote cooperation and avoid conflict and aggression.
Recent studies have found that people living in developed countries with the highest levels of income inequality were three times more likely to develop depression or anxiety disorders than their more egalitarian counterparts.
Similar results were found in a state-by-state comparison of income and mental illness in the US.
For the latest study, 612 young men and women rated their social status, propensity toward manic, depressive or anxious symptoms, drive to achieve power, comfort with leadership and degree of pride, among other measures.
In a test for tendencies toward hypomania, a manic mood disorder, participants ranked how strongly they agreed or disagreed with such statements as "I often have moods where I feel so energetic and optimistic that I feel I could outperform almost anyone at anything," or "I would rather be an ordinary success in life than a spectacular failure."
