Early Concepts of Intimacy: Young Humans Use Saliva Sharing to Infer Close Relationships

Thomas, Ashley J., Brandon M. Woo, Daniel Nettle, Elizabeth Spelke, and Rebecca Saxe. 2022. “Early Concepts of Intimacy: Young Humans Use Saliva Sharing to Infer Close Relationships.” PsyArXiv. January 20. doi:10.31234/osf.io/xgfp7

Abstract: Across human societies, people form ‘thick’ relationships, characterized by strong attachments, obligations and mutual responsiveness. People in thick relationships engage in distinctive interactions, like sharing food utensils or kissing, that involve sharing saliva. Here we show that children, toddlers, and infants infer that dyads who share saliva (compared to other positive social interactions) have a distinct relationship. Children expect saliva sharing to happen in nuclear families. Toddlers and infants expect that people who shared saliva will respond to one another in distress. Parents confirm that saliva sharing is a valid cue of relationship thickness in their children’s social environments. The ability to use distinctive interactions to infer categories of relationships thus emerges early in life, without explicit teaching, allowing young humans to rapidly identify close relationships, both within and beyond families.

Contrary to our expectations, a longitudinal study shows that people's focus on money decreased during the pandemic

Has the COVID-19 pandemic made us more materialistic? The effect of COVID-19 and lockdown restrictions on the endorsement of materialism. Olaya Moldes, Denitsa Dineva, Lisbeth Ku. Psychology & Marketing, January 24 2022. https://doi.org/10.1002/mar.21627

Abstract: The COVID-19 pandemic has led to an increase in the factors that typically facilitate the endorsement of materialistic values (e.g., higher media consumption, stress and anxiety, loneliness, death anxiety, and lower moods). In this paper, we examine how contextual changes affecting the antecedents of materialism influence its advocacy with a mixed-method approach. First, a correlational study (Study 1) suggests that increases in media consumption and stress and anxiety during the pandemic predicted current levels of materialism, however, these effects were limited. Second, contrary to our expectations, a longitudinal study (Study 2) shows that people's focus on money decreased during the pandemic. Last, a social media content analysis (Study 3) reveals a downward trend in users’ online discourses about consumption-related behaviors, but an upward trend in brands promoting spending as a way to attain well-being. The observed effects could fuel deeper societal change in the labor market and in consumer behavior, and have further implications for individual and societal well-being in a post-pandemic world. We recommend future interventions aimed at diminishing materialistic attitudes to examine the effects of decreasing media consumption and to explore how other factors introduced by the pandemic (e.g., a health or well-being focus) might moderate its advocacy.

Despite our fluency in reading human faces, sometimes we mistakenly perceive illusory faces in objects; there is a strong bias to perceive illusory faces as male rather than female

Illusory faces are more likely to be perceived as male than female. Susan G. Wardle et al. Proceedings of the National Academy of Sciences, February 1, 2022 119 (5) e2117413119; https://doi.org/10.1073/pnas.2117413119

Significance: Face pareidolia is the phenomenon of perceiving illusory faces in inanimate objects. Here we show that illusory faces engage social perception beyond the detection of a face: they have a perceived age, gender, and emotional expression. Additionally, we report a striking bias in gender perception, with many more illusory faces perceived as male than female. As illusory faces do not have a biological sex, this bias is significant in revealing an asymmetry in our face evaluation system given minimal information. Our result demonstrates that the visual features that are sufficient for face detection are not generally sufficient for the perception of female. Instead, the perception of a nonhuman face as female requires additional features beyond that required for face detection.

Abstract: Despite our fluency in reading human faces, sometimes we mistakenly perceive illusory faces in objects, a phenomenon known as face pareidolia. Although illusory faces share some neural mechanisms with real faces, it is unknown to what degree pareidolia engages higher-level social perception beyond the detection of a face. In a series of large-scale behavioral experiments (ntotal = 3,815 adults), we found that illusory faces in inanimate objects are readily perceived to have a specific emotional expression, age, and gender. Most strikingly, we observed a strong bias to perceive illusory faces as male rather than female. This male bias could not be explained by preexisting semantic or visual gender associations with the objects, or by visual features in the images. Rather, this robust bias in the perception of gender for illusory faces reveals a cognitive bias arising from a broadly tuned face evaluation system in which minimally viable face percepts are more likely to be perceived as male.

Keywords: face perceptiongenderbiaspareidoliaface evaluation

Both men and women self-presented as more sensitive to sexual disgust in the presence of the female attractive experimenter

“May I present you: my disgust!” – Declared disgust sensitivity in the presence of attractive models. Michal Mikolaj Stefanczyk et al. British Psychological Society, January 24 2022. https://doi.org/10.1111/bjop.12556

Abstract: Disgust sensitivity differs among men and women, and this phenomenon has been observed across numerous cultures. It remains unknown why such sex differences occur, but one of the reasons may relate to differences in self-presentation. We tested that hypothesis in an experiment comprising 299 participants (49% women) randomly allocated into three groups. Each group completed the Three Domains Disgust Scale (TDDS) and rated how disgusting they found olfactory, visual, gustatory, and tactile disgust elicitors either when a male experimenter was present, a female experimenter was present, or no experimenter was present. We hypothesised that male participants in the female experimenter group would declare decreased levels of disgust sensitivity, and female participants in the male experimenter group would declare increased levels of disgust sensitivity. Results showed that despite sex differences in pathogen and sexual disgust, attractive experimenters did not evoke any differences in declared disgust across groups with one exception–both men and women self-presented as more sensitive to sexual disgust in the presence of the female experimenter. We discuss our findings in the light of evolutionary and social theories.