In two studies, researchers asked subjects to identify the sex of a series of faces. In the first study, androgynous faces with lowered eyebrows and tight lips (angry expressions) were more likely to be identified as male, and faces with smiles and raised eyebrows (expressions of happiness and fear) were often labeled feminine.
The second study used male and female faces wearing expressions of happiness, anger, sadness, fear or a neutral expression. Overall, subjects were able to identify male faces more quickly than female faces, and female faces that expressed anger took the longest to identify.
“The present research shows that the association between anger and men and happiness and women is so strong that it can influence the decisions about the gender of another person when that person is viewed briefly,” said Ursula Hess, PhD, from the Department of Psychology, University of Quebec at Montreal.
According to the report, the findings from this study as well as others lead to the idea that “the face is a complex social signaling system in which signals for emotion, behavioral intentions and sex all overlap.”
Hess said that the same cues that make a face appear male – a high forehead, a square jaw and thicker eyebrows – have been linked to perceptions of dominance. Likewise, features that make a face appear female – a rounded, baby face with large eyes – have been linked to perceptions of the individual being approachable and warm.
“This difference in how the emotions and social traits of the two sexes are perceived could have significant implications for social interactions in a number of settings. Our research demonstrates that equivalent levels of anger are perceived as more intense when shown by men rather than women, and happiness as more intense when shown by women rather than men. It also suggests that it is less likely for men to be perceived as warm and caring and for women to be perceived as dominant.”
This research is part of a larger set of studies showing that men's faces are perceived as angrier and women's faces as happier. Hess’ team is also investigating other facial features that affect the way people perceive emotion, including the effect of signs of aging such as wrinkles and furrows on the perception of emotions in the faces of the elderly.
The Association for Research in Vision and Ophthalmology (ARVO) is the largest eye and vision research organization in the world. Members include more than 12,500 eye and vision researchers from over 80 countries. ARVO encourages and assists research, training, publication and knowledge-sharing in vision and ophthalmology.
ARVO’s Journal of Vision is an online-only, peer-reviewed, open-access publication devoted to visual function in humans and animals. It explores topics such as spatial vision, perception, low vision, color vision and more, spanning the fields of neuroscience, psychology and psychophysics. JOV is known for hands-on datasets and models that users can manipulate online.
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