Facial Dominance Research Articles

The importance of face-shape masculinity for perceptions of male dominance depends on study design

Dominance perceptions play an important role in social interactions. Although many researchers have proposed that shape masculinity is an important facial cue for dominance perceptions, evidence for this claim has come almost exclusively from studies that assessed perceptions of experimentally manipulated faces using forced-choice paradigms. Consequently, we investigated the role of masculine shape characteristics in perceptions of men’s facial dominance (1) when shape-manipulated stimuli were presented in a forced-choice paradigm and (2) when unmanipulated face images were rated for dominance and shape masculinity was measured from face images. Although we observed large effects of masculinity on dominance perceptions when we used the forced-choice method (Cohen’s ds = 2.51 and 3.28), the effect of masculinity on dominance perceptions was considerably smaller when unmanipulated face images were rated and shape masculinity measured from face images (Cohen’s ds = 0.44 and 0.62). This pattern was observed when faces were rated separately for physical dominance, social dominance, and masculinity, and was seen for two different sets of stimuli. Collectively, these results suggest that shape masculinity may not be a particularly important cue for dominance perceptions when faces vary simultaneously on multiple dimensions, as is the case during everyday social interactions.

Facial dominance augments perceived proximity: Evidence from a visual illusion.

Dominance is a major organizing principle of human societies that impacts a wide range of human behaviors, from gaze-following to voting choices. Here, we examined how dominance modulates a fundamental perceptual ability: the perception of proximity. We used the "Fat Face" illusion, a novel paradigm that measures perceived proximity implicitly. The illusion depicts a phenomenon that occurs when two identical faces are aligned vertically (one above the other) and the bottom face consistently appears larger. This illusion suggests that our visual system uses a vertical layout to infer the relative proximity of faces, so that the bottom face appears closer, and is thereby perceived as larger than the top one. We found that the illusion was larger for dominant than for submissive faces (Experiment 1). Moreover, when a dominant face was presented below a submissive one, participants reported a larger illusion than when a dominant face was above a submissive face (Experiments 2a and 2b). These findings suggest that dominant faces are perceived to be closer to observers than submissive faces. Furthermore, we found a stronger illusion for other-race faces as opposed to own-race faces, suggesting that we also misperceive other-race faces as closer than own-race faces. Together, these findings suggest that the visual system is highly sensitive to self-relevant, potentially threatening stimuli (e.g., dominant faces and other-race individuals) in the environment by misperceiving them as closer. In line with the recently proposed threat-signal hypothesis, this mechanism may allow for rapid and adaptive behaviors in our everyday social interactions. (PsycInfo Database Record (c) 2023 APA, all rights reserved).

Supplemental Material for Facial Dominance Augments Perceived Proximity: Evidence From a Visual Illusion

Supplemental Material for Facial Dominance Augments Perceived Proximity: Evidence From a Visual Illusion

ERPs responses to dominance features from human faces

Social dominance is an important feature of social life. Dominance has been proposed to be one of two trait dimensions underpinning social judgments of human faces. Yet, the neural bases of the ability to identify different dominance levels in others based on intrinsically facial cues remains poorly understood. Here, we used event-related potentials to determine the temporal dynamics of facial dominance evaluation based on facial features signaling physical strength/weakness in humans. Twenty-seven participants performed a dominance perception task where they passively viewed faces with different dominance levels. Dominance levels did not modulate an early component of face processing, known as the N170 component, but did modulate the late positive potential (LPP) component. These findings indicate that participants inferred dominance levels at a late stage of face evaluation. Furthermore, the highest level of dominant faces and the lowest level of submissive faces both elicited higher LPP amplitudes than faces with a neutral dominance level. Taken together, the present study provides new insights regarding the dynamics of the neurocognitive processes underlying facial dominance evaluation.

The effect of facial occlusion on facial impressions of trustworthiness and dominance

Recognizing the role that facial appearance plays in guiding social interactions, here we investigated how occlusions of the bottom-face region affect facial impressions of trustworthiness and dominance. Previous studies suggesting that different facial features impact inferences on these traits sustain the hypothesis that wearing a face mask will differently affect each trait inference. And specifically, that trustworthiness impressions will be more disrupted by this type of face occlusion than dominance impressions. In two studies, we addressed this possibility by occluding the bottom face region of faces that were previously shown to convey different levels of dominance and trustworthiness, and tested differences in the ability to discriminate between these trait levels across occlusion conditions. In Study 1 faces were occluded by a mask, and in Study 2 by a square image. In both studies, results showed that although facial occlusions generally reduced participants’ confidence on their trait judgments, the ability to discriminate facial trustworthiness was more strongly affected than the ability to discriminate facial dominance. Practical and theoretical implications of these findings are discussed.

Africans and Europeans differ in their facial perception of dominance and sex-typicality: a multidimensional Bayesian approach

Biosocial impact of facial dominance and sex-typicality is well-evidenced in various human groups. It remains unclear, though, whether perceived sex-typicality and dominance can be consistently predicted from sexually dimorphic facial features across populations. Using a combination of multidimensional Bayesian approach and geometric morphometrics, we explored associations between perceived dominance, perceived sex-typicality, measured sexual shape dimorphism, and skin colour in a European and an African population. Unlike previous studies, we investigated the effect of facial variation due to shape separately from variation due to visual cues not related to shape in natural nonmanipulated stimuli. In men, perceived masculinity was associated with perceived dominance in both populations. In European women higher perceived femininity was, surprisingly, likewise positively associated with perceived dominance. Both shape and non-shape components participate in the constitution of facial sex-typicality and dominance. Skin colour predicted perceived sex-typicality in Africans but not in Europeans. Members of each population probably use different cues to assess sex-typicality and dominance. Using our methods, we found no universal sexually dimorphic scale predicting human perception of sex-typicality and dominance. Unidimensional understanding of sex-typicality thus seems problematic and should be applied with cautions when studying perceived sex-typicality and its correlates.

Achieving Status and Reducing Loneliness during the Transition to College: The Role of Entitlement, Intrasexual Competitiveness, and Dominance.

Although many emerging adults struggle to gain status and develop social relationships, particularly during the college transition, it remains unclear whether certain personality traits facilitate this transition. Using a longitudinal design, we investigated whether status-related traits-namely, entitlement, intrasexual competitiveness, and dominance-related to the development of status in 91 first-year college students (M age=18.15, SD=0.44) transitioning to a novel college environment. We also examined whether personality traits moderated the degree to which status related to loneliness. As hypothesized, only students high in intrasexual competitiveness experienced increases in subjective dorm status across the year. In addition, students exhibiting average or low entitlement experienced decreases in loneliness over time, whereas high entitlement was related to consistently low loneliness. Finally, higher subjective dorm status was related to lower loneliness only for less dominant students, as assessed by both self-ratings of trait dominance and raters' judgments of facial dominance from photographs. Using a real-world context of status development, these results suggest that personality traits may influence students' ability to experience higher status and modulate the relation between subjective status and loneliness.

The influence of social and emotional context on the gaze leading orienting effect

ABSTRACT We spontaneously orient our attention towards people whose gaze we have led (the “gaze leading” effect). Here, we investigated whether this orienting effect is sensitive to the social and emotional content of the stimuli within the interactions. Experiment 1 replicated the gaze leading effect but found no reliable influence of facial dominance or object valence. Experiment 2, where only object valence was manipulated, replicated Experiment 1. Thus, the gaze leading effect appears reliable but insensitive to the properties of the shared referent object. Experiment 3 varied only facial dominance; a marginally significant interaction indicated that attention was deployed towards high-dominant faces more than low-dominant gaze followers. Experiment 4 varied the social information relating to the social status that participants hold regarding the faces with which they interacted, but statistical support for an influence of biographical information on gaze leading was weak. Overall, the gaze leading effect appears generally reliable, and may vary when information about the individuals following our gaze is manipulated, though it is not yet fully clear which socio-evaluative features are most relevant. Future investigations may therefore require more powerful or sensitive designs to better evaluate the role of socioemotional factors and processes on this social orienting effect.

The Influence of Facial Dominance on Perceptions of Risk-Taking Preferences

Higher perceived dominance leads to greater perceived risk-taking willingness. This, both for people differing in facial dominance (Study 1) and people whose dominance was digitally manipulated (Study 2). Yet, the effect of facial dominance varied to some degree across domains. Gender differences also emerged and these fitted stereotypes. Women were judged as less likely to take financial or recreational risks but more likely (Study 1) or as likely as men (Study 2) to take social risks. The assumption that perceived optimism and/or perceived competence mediate the effect of facial dominance on perceived risk-preferences was not supported. Overall, this research exemplifies the importance of considering the way cues such as dominance may have a differential effect in specific contexts. Our findings also challange the idea that assessment of risk-taking tendencies based on facial dominance serves the goal of determining male quality.

Special Considerations for Chin Augmentation in the Professional Violinist

The extensive training and unique positioning of a stringed instrument (eg, professional violinist) may subject the mandible to compressive forces that may lead to asymmetric micrognathia. Prior cephalometric studies have shown a right-sided facial dominance with an underdeveloped left mandible. Surgical correction must account for occupational demands, as the chin is uniquely load-bearing in violinists. The use of three-dimensional planning with a customized implant facilitates the correction of asymmetries and allows shared decision-making for optimal implant fit. Our case outlines important considerations for alloplastic chin augmentation in violinists.

Unravelling how low dominance in faces biases non-spatial attention

According to the Dual Model of Social Hierarchy, one pathway for attaining social status is through dominance (coercion and intimidation). High dominance stimuli are known to more readily attract eye gaze and social attention. However, when there is a competition for non-spatial attentional resources, low dominance stimuli show an advantage. This low dominance bias was hypothesised to occur due to either counter-stereotypicality or attention competition. Here, these two hypotheses were examined across two experiments using modified versions of the attentional blink paradigm, used to measure non-spatial attention, and manipulations of facial dominance in both males and females. The results support the attention competition theory, suggesting that low dominance stimuli have a consistently strong ability to compete for attentional resources. Unexpectedly, high dominance stimuli fluctuate between having a strong and weak ability to compete for the same resources. The results challenge the current understanding of how humans interact with status.

An Exploration of the Relationships Among Facial Dimensions, Age, Sex, Dominance Status, and Personality in Rhesus Macaques (Macaca mulatta)

Aspects of personality in nonhuman primates have been linked to health, social relationships, and life history outcomes. In humans as well as nonhuman primates, facial morphology is associated with assertiveness, aggression, and measures of dominance status. In this study we aimed to examine the relationship among facial morphology, age, sex, dominance status, and ratings on the personality dimensions Confidence, Openness, Assertiveness, Friendliness, Activity, and Anxiety in rhesus macaques (Macaca mulatta). We measured facial width-to-height ratio (fWHR) and lower-height/full-height ratio (fLHFH) using photographs from 109 captive rhesus macaques, which observers also assessed for dominance status and personality, and explored the associations among facial morphology, age, sex, dominance status, and personality. fWHR and fLHFH personality associations depended on age category: Assertiveness was associated with higher fWHR and fLHFH, and Confidence was associated with lower fWHR and fLHFH, but all these associations were consistent only in individuals <8 yr. of age. We found fWHR and fLHFH to not be consistently associated with sex or dominance status; compared to younger individuals, we found few associations with fWHR and fLHFH for individuals older than 8 yr., which may be due to limited sample size. Our results indicate that in macaques <8 yr. old, facial morphology is associated with the Assertiveness and Confidence personality dimensions, which is consistent with results suggesting a relationship between fWHR and trait aggression in humans and assertiveness in brown capuchins, all of which implies that fWHR might be a cue to assertive and aggressive traits.

Context-specific effects of facial dominance and trustworthiness on hypothetical leadership decisions.

Social judgments of faces predict important social outcomes, including leadership decisions. Previous work suggests that facial cues associated with perceptions of dominance and trustworthiness have context-specific effects on leadership decisions. Facial cues linked to perceived dominance have been found to be preferred in leaders for hypothetical wartime contexts and facial cues linked to perceived trustworthiness have been found to be preferred in leaders for hypothetical peacetime contexts. Here we sought to replicate these effects using images of women’s faces, as previous studies have primarily focused on perceptions of leadership abilities from male faces, with only a handful of these including female faces. Consistent with previous work, a linear mixed effects model demonstrated that more trustworthy-looking faces were preferred in leaders during times of peace and more dominant-looking faces were preferred in leaders during times of war. These results provide converging evidence for context-specific effects of facial cues on hypothetical leadership judgments.

Facial Dominance and Electoral Success in Times of War and Peace

Do voters prefer dominant looking candidates in times of war? By replicating previous survey experiments, we find that respondents do prefer candidates with dominant facial features when war is sal...

The influence of oxytocin and vasopressin on men’s judgments of social dominance and trustworthiness: An fMRI study of neutral faces

Cues signaling trust and dominance are crucial for social life. Previous studies on the effects of oxytocin (OT) nasal sprays on trustworthiness evaluations have been inconsistent and its influence on dominance is unknown. Vasopressin (AVP) may also influence social cue perception, but even fewer investigations have evaluated this possibility. We evaluated the effects of intranasal OT and AVP compared to placebo control during three double-blinded functional magnetic resonance imaging sessions. Twenty males received a pseudo-randomized order of nasal spray conditions and rated the trustworthiness and dominance of neutral faces. OT increased facial dominance ratings compared to placebo. Neuroimaging results revealed an inverse relationship between brain activation and face ratings for OT compared to placebo in regions involved in processing emotional expressions. Specifically, the right superior temporal gyrus was attenuated as ratings increased and the left precuneus selectively diminished with increasing dominance ratings. Additionally, OT increased functional connectivity between frontoparietal regions and the right amygdala for faces rated as highly dominant, but OT increased connectivity between the fusiform gyrus, hippocampus, and bilateral ventral tegmental area (VTA) for faces perceived as highly trustworthy. Overall, OT increased the perception of dominance but did not influence trustworthiness judgments. However, we observed regional neural effects for OT that differed between judgments of trustworthiness and dominance. AVP attenuated left temporoparietal junction activity as face ratings increased, a result consistent with AVP influencing mentalization. AVP also led to increased left amygdala and right VTA connectivity with the putamen, which is consistent with cue-driven, habitual responses.

Unconscious processing of facial dominance: The role of low-level factors in access to awareness.

Visual stimuli with social-emotional relevance have been claimed to gain preferential access to awareness. For example, recent studies used the breaking continuous flash suppression paradigm (b-CFS) to show that faces that are perceived as less dominant and more trustworthy are prioritized for awareness. Here we asked whether these effects truly reflect differences in social-emotional meaning or whether they can be equally explained by differences in low-level stimulus properties. In Experiment 1, we successfully replicated dominance- and untrustworthiness-related slowing for upright faces. However, these effects were equally strong for inverted faces, even though it was more difficult to perceive social characteristics in inverted faces. The previously reported correlation between dominance- and untrustworthiness-related slowing in b-CFS and self-reported propensity to trust did not replicate. Experiment 2 showed that dominance-related slowing in b-CFS can also be observed when only presenting the eye region of faces, and even when the eye region was presented inverted and/or with reversed contrast polarity, in which case personality traits were no longer discernible. These results were replicated in Experiment 3 following a preregistration protocol. Altogether, our findings link dominance-related slowing in b-CFS to physical differences in the eye region that are-when presented in isolation-unrelated to the perception of dominance. We conclude that low-level physical stimulus differences provide a parsimonious explanation for the effect of social facial characteristics on access to awareness. (PsycINFO Database Record (c) 2018 APA, all rights reserved).

Male Facial Attractiveness, Dominance, and Health and the Interaction between Cortisol and Testosterone

The dual-hormone hypothesis suggests that associations of testosterone (T) with certain behavioral tendencies are stronger when cortisol (C) levels are low simultaneously. A range of studies provided supporting evidence for TxC interaction effects, for example on dominance and risk-taking behaviors. However, concerning perceptions of facial characteristics the evidence is mixed, with a recent study reporting a positive association between perceived facial dominance and T among men with higher C. We sought to further examine links of observer-rated facial attractiveness, dominance and health (based on photographs of N = 165 men) with baseline T, competition-induced T reactivity, and their interaction with baseline C. There was some evidence that baseline T and the interaction of T reactivity with baseline C positively predicted facial dominance, however these were not robust when including control variables. Since no effects were found for perceived attractiveness and health, our results suggest that associations of perceived facial characteristics with baseline T, T reactivity and their interactions with baseline C are rather weak.

Help me Obi-Wan: the influence of facial dominance on perceptions of helpfulness

ABSTRACTWe all occasionally need the help of others whom we do not know well. In four studies, we studied the influence of the facial appearance of both the potential helper and the help seeker on such a decision. In three studies (1a-1c), across different help domains, participants rated a person with submissive facial appearance as more likely to help. This was mediated via the perception of the submissive person as caring and helpful. The notion that submissive individuals will be perceived as more likely to help when a dominant person asks was only supported in the context of financial help. The preference for a submissive potential helper was also found when participant had to choose a helper for themselves (Study 2). (120 words)

Dominance biases in the perception and memory for the faces of powerholders, with consequences for social inferences

A great deal of research has shown that dominant-looking faces are afforded power. In this research, we tested the reverse link. As such, we examined whether knowledge of a target's power would lead to a dominance bias in face perception. Five studies were conducted by applying face morphing techniques to both controlled facial stimuli and faces of powerholders in the real world. Results showed that faces of powerholders were misrecollected (Studies 1A and 1B) and misperceived (Studies 3A and 3B) as more dominant-looking than their powerless counterparts. In addition, their faces were misrecollected as more prototypically dominant in physical appearance than they actually were (Studies 1A, 1B, and 2). Furthermore, enhanced facial dominance affected social inferences, with evaluations such as competence and attractiveness being sensitive to the gender of the target person (Study 3B). Implications for research on power and face perception are discussed.

Does Adult Sex Ratio Predict Regional Variation in Facial Dominance Perceptions? Evidence From an Analysis of U.S. States.

When the adult sex ratio of the local population is biased toward women, men face greater costs due to increased direct intrasexual competition. In order to mitigate these costs, men may be more attuned to cues of other men's physical dominance under these conditions. Consequently, we investigated the relationships between the extent to which people ( N = 3,586) ascribed high dominance to masculinized versus feminized faces and variation in adult sex ratio across U.S. states. Linear mixed models showed that masculinized faces were perceived as more dominant than feminized faces, particularly for judgments of men's facial dominance. Dominance perceptions were weakly related to adult sex ratio, and this relationship was not moderated by face sex, participant sex, or their interaction. Thus, our results suggest that dominance perceptions are relatively unaffected by broad geographical differences in adult sex ratios.