Is there a female dominance hormone? (source) |
Today on PYM we are pleased to bring you a guest blog from Emily Plutov. Emily is an advanced undergraduate at the University of Illinois, Urbana-Champaign, who has recently become interested in social psychology research on power and dominance.
When it comes to research on the hormonal correlates of
dominance behaviors, what becomes clear is that males have garnered
considerable attention within this sphere. As Michael mentioned in a previous post, testosterone (an androgen which is produced in the testes in men and the
adrenal gland in both men and women), is linked to dominance in men.
What
about women?
Research that has examined potential links between
testosterone and dominance in women has been inconclusive. Most of this work
has examined gender differences in risk-taking behavior associated with testosterone.
Increased risk taking is associated with dominance behavior—given that
risk-taking behavior tends to attract the attention of others, thereby
enhancing an individual’s perceived status. In
research by Paola Sapienza’s (2009), of Northwestern University, men and women
with similar levels of testosterone, showed no differences in risk-taking
behavior—such as choosing a high-risk financial career like investment banking.
Despite this single result, most of the research on the
correlation between testosterone and dominance in women is inconsistent
(Stanton & Schultheiss, 2007). Researchers reason that this inconsistency is
due, in part, to the fact that women simply do not produce as much testosterone
as men do. Thus, studies like Sapienza’s on risk-taking behavior may show
similar testosterone findings in women with similar levels of testosterone as males.
Recent research has moved towards an examination of other biological factors
besides testosterone that may play a role in dominance motivation in
women…perhaps even a “testosterone equivalent.”
Does a testosterone
equivalent even exist in females?
Clinton, the most powerful woman in America (source) |
Given testosterone’s role in producing primary male sexual
characteristics, perhaps a hormone related to the expression of female primary
sexual characteristics may be linked to dominance. In fact, studies involving
female mammals have shown that dominance motivation and behavior are positively
linked to levels of the hormone estradiol. Estradiol is a steroid hormone
produced and released mainly by the ovaries and like testosterone, it is the
predominant hormone present during female reproductive cycling and sexual
functioning. Estradiol is present in much higher concentrations in the
bloodstream of females, than it is in males—where it is one of the metabolic
products of testosterone.
Two recent studies in humans have shown reliable
associations between estradiol and dominance. In one study, Stanton and
Schultheiss (2007) examined links between estradiol and implicit power
motivation. In this research, participants fill out open-ended responses to
pictures and then have their stories coded by a trained coder, who examines the
stories for dominance behaviors. Stories for power motivated individuals are concerned
with having influence on others, and pleasure gained from achieving this
influence. Think Donald Trump.
In general, people with high implicit power motivation tend
to engage in dominance behaviors that include norm-violating behavior, like
vandalism or resistance to authority. Interestingly, women
high in salivary estradiol also show high levels of implicit power motivation.
Another interesting point in Stanton and Schultheiss’ findings is
that single women as well as women not on oral contraceptives showed a
significant positive correlation between implicit power motivation and
estradiol compared to women who were in relationships and on oral
contraceptives. Why might these individuals have higher estradiol to implicit
power associations?
The researchers argue that this pattern may have an
evolutionary basis: Estradiol might be particularly likely to enhance dominance
for single women and women with regular ovulation cycles because it would be
best able to increase risk-taking and attention seeking for the purpose of
attracting desirable mates among these individuals.
Implicit power motivation, unfortunately, proves as somewhat
less salient and evocative than actual demonstrations of dominance behavior
simply because actual behavior was not measured. In the future, it would be interesting
to consider dominance exhibited in everyday life or in the workforce—something
researchers have not undertaken yet with respect to women and estradiol.
Stanton SJ, & Schultheiss OC (2007). Basal and dynamic relationships between implicit power motivation and estradiol in women. Hormones and behavior, 52 (5), 571-80 PMID: 17949722
Stanton SJ, & Schultheiss OC (2009). The hormonal correlates of implicit power motivation. Journal of research in personality, 43 (5) PMID: 20161646
Sapienza P, Zingales L, & Maestripieri D (2009). Gender differences in financial risk aversion and career choices are affected by testosterone. Proceedings of the National Academy of Sciences of the United States of America, 106 (36), 15268-73 PMID: 19706398
Emily Plutov is an undergraduate at the University of Illinois, Urbana-Champaign. She is currently majoring in Psychology and Russian Language & Literature. Having gained experience in the field of clinical psychology, she is now focusing on social psychology, particularly power and dominance. Have questions about the feminine side to dominance? Please share them in the comments!
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