scholarly journals People expressing olfactory and visual cues of disease are less liked

2020 ◽  
Vol 375 (1800) ◽  
pp. 20190272 ◽  
Author(s):  
Georgia Sarolidou ◽  
John Axelsson ◽  
Bruce A. Kimball ◽  
Tina Sundelin ◽  
Christina Regenbogen ◽  
...  
Keyword(s):  
Visual Cues ◽  
Health Anxiety ◽  
Olfactory Communication ◽  
Perceptual Cues ◽  
First Line ◽  
Perceived Vulnerability ◽  
Facial Electromyography ◽  
Body Odour ◽  
Perceived Vulnerability To Disease ◽  
Main Effects

For humans, like other social animals, behaviour acts as a first line of defence against pathogens. A key component is the ability to detect subtle perceptual cues of sick conspecifics. The present study assessed the effects of endotoxin-induced olfactory and visual sickness cues on liking, as well as potential involved mechanisms. Seventy-seven participants were exposed to sick and healthy facial pictures and body odours from the same individual in a 2 × 2 factorial design while disgust-related facial electromyography (EMG) was recorded. Following exposure, participants rated their liking of the person presented. In another session, participants also answered questionnaires on perceived vulnerability to disease, disgust sensitivity and health anxiety. Lower ratings of liking were linked to both facial and body odour disease cues as main effects. Disgust, as measured by EMG, did not seem to be the mediating mechanism, but participants who perceived themselves as more prone to disgust, and as more vulnerable to disease, liked presented persons less irrespectively of their health status. Concluding, olfactory and visual sickness cues that appear already a few hours after the experimental induction of systemic inflammation have implications for human sociality and may as such be a part of a behavioural defence against disease. This article is part of the Theo Murphy meeting issue ‘Olfactory communication in humans’.

scholarly journals “Touch Me If You Can!”: Individual Differences in Disease Avoidance and Social Touch

2021 ◽  
Vol 19 (4) ◽  
pp. 147470492110561
Author(s):  
Gaëtan Thiebaut ◽  
Alain Méot ◽  
Arnaud Witt ◽  
Pavol Prokop ◽  
Patrick Bonin
Keyword(s):  
Individual Differences ◽  
Personality Traits ◽  
Two Dimensions ◽  
Disease Avoidance ◽  
First Line ◽  
Perceived Vulnerability ◽  
Social Touch ◽  
Psychological System ◽  
Perceived Vulnerability To Disease ◽  
The Impact

The threat of diseases varies considerably among individuals, and it has been found to be linked to various proactive or reactive behaviors. In the present studies, we investigated the impact of individual differences in the perceived vulnerability to disease (PVD) on social touch before (Study 1) or during the coronavirus disease 2019 (COVID-19) pandemic (Study 2). We also investigated the influence of personality traits in the covariation between these two dimensions. We found that people who are the most disease-avoidant are also the most reluctant to touching or being touched by others (and this relationship holds when personality traits are taken into account). Interestingly, the association between PVD and social touch increased during the COVID-19 pandemic compared with a few months before. By showing that the fear of contamination has an association with social touch, the findings provide further evidence for the behavioral immune system ( Schaller and Park, 2011 ), a psychological system acting as a first line of defense against pathogens.

scholarly journals Development of an Instrument to Assess Parents’ Excessive Web-Based Searches for Information Pertaining to Their Children’s Health: The “Children’s Health Internet Research, Parental Inventory” (CHIRPI)

10.2196/16148 ◽  
2020 ◽  
Vol 22 (4) ◽  
pp. e16148
Author(s):  
Antonia Barke ◽  
Bettina K Doering
Keyword(s):  
Health Information ◽  
Health Anxiety ◽  
Chronically Ill ◽  
Children's Health ◽  
Internet Research ◽  
Children’S Health ◽  
Web Based ◽  
Related Information ◽  
Health Related ◽  
Main Effects

Background People often search the internet to obtain health-related information not only for themselves but also for family members and, in particular, their children. However, for a minority of parents, such searches may become excessive and distressing. Little is known about excessive web-based searching by parents for information regarding their children’s health. Objective This study aimed to develop and validate an instrument designed to assess parents' web-based health information searching behavior, the Children’s Health Internet Research, Parental Inventory (CHIRPI). Methods A pilot survey was used to establish the instrument (21 items). CHIRPI was validated online in a second sample (372/384, 96.9% mothers; mean age 32.7 years, SD 5.8). Item analyses, an exploratory factor analysis (EFA), and correlations with parents’ perception of their children’s health-related vulnerability (Child Vulnerability Scale, CVS), parental health anxiety (modified short Health Anxiety Inventory, mSHAI), and parental cyberchondria (Cyberchondria Severity Scale, CSS-15) were calculated. A subset of participants (n=73) provided retest data after 4 weeks. CHIRPI scores (total scores and subscale scores) of parents with a chronically ill child and parents who perceived their child to be vulnerable (CVS+; CVS>10) were compared with 2×2 analyses of variances (ANOVAs) with the factors Child’s Health Status (chronically ill vs healthy) and perceived vulnerability (CVS+ vs CVS−). Results CHIRPI’s internal consistency was standardized alpha=.89. The EFA identified three subscales: Symptom Focus (standardized alpha=.87), Implementing Advice (standardized alpha=.74) and Distress (standardized alpha=.89). The retest reliability of CHIRPI was measured as rtt=0.78. CHIRPI correlated strongly with CSS-15 (r=0.66) and mSHAI (r=0.39). The ANOVAs comparing the CHIRPI total score and the subscale scores for parents having a chronically ill child and parents perceiving their child as vulnerable revealed the main effects for perceiving one’s child as vulnerable but not for having a chronically ill child. No interactions were found. This pattern was observed for the CHIRPI total score (η2=0.053) and each subscale (Symptom Focus η2=0.012; Distress η2=0.113; and Implementing Advice η2=0.018). Conclusions The psychometric properties of CHIRPI are excellent. Correlations with mSHAI and CSS-15 indicate its validity. CHIRPI appears to be differentially sensitive to excessive searches owing to parents perceiving their child’s health to be vulnerable rather than to higher informational needs of parents with chronically ill children. Therefore, it may help to identify parents who search excessively for web-based health information. CHIRPI (and, in particular, the Distress subscale) seems to capture a pattern of factors related to anxious health-related cognitions, emotions, and behaviors of parents, which is also applied to their children.

scholarly journals Losing stinks! The effect of competition outcome on body odour quality

2020 ◽  
Vol 375 (1800) ◽  
pp. 20190267 ◽  
Author(s):  
Jitka Fialová ◽  
Vít Třebický ◽  
Radim Kuba ◽  
David Stella ◽  
Jakub Binter ◽  
...  
Keyword(s):  
Human Body ◽  
Dominance Hierarchy ◽  
Affective State ◽  
Real Life ◽  
Olfactory Communication ◽  
Affective States ◽  
Formal Level ◽  
Body Odour ◽  
Axillary Odour

Dominance hierarchy is often established via repeated agonistic encounters where consistent winners are considered dominant. Human body odour contains cues to psychological dominance and competition, but it is not known whether competition outcome (a marker of a change in dominance hierarchy) affects the hedonic quality of human axillary odour. Therefore, we investigated the effect of winning and losing on odour quality. We collected odour samples from Mixed Martial Arts fighters approximately 1 h before and immediately after a match. Raters then assessed samples for pleasantness, attractiveness, masculinity and intensity. We also obtained data on donors' affective state and cortisol and testosterone levels, since these are known to be associated with competition and body odour quality. Perceived body odour pleasantness, attractiveness and intensity significantly decreased while masculinity increased after a match irrespective of the outcome. Nonetheless, losing a match affected the pleasantness of body odour more profoundly, though bordering formal level of significance. Moreover, a path analysis revealed that match loss led to a decrease in odour attractiveness, which was mediated by participants’ negative affective states. Our study suggests that physical competition and to some extent also its outcome affect the perceived quality of human body odour in specific real-life settings, thus providing cues to dominance-related characteristics. This article is part of the Theo Murphy meeting issue ‘Olfactory communication in humans’.

scholarly journals A dataset for the perceived vulnerability to disease scale in Japan before the spread of COVID-19

F1000Research ◽  
2020 ◽  
Vol 9 ◽  
pp. 334
Author(s):  
Yuki Yamada ◽  
Haoqin Xu ◽  
Kyoshiro Sasaki
Keyword(s):  
Online Survey ◽  
Baseline Data ◽  
Perceived Vulnerability ◽  
Perceived Vulnerability To Disease ◽  
Psychological Studies

The COVID-19 outbreak is a worldwide medical and epidemiological catastrophe, and the number of psychological studies concerning COVID-19 is growing daily. Such studies need baseline data from before the COVID-19 outbreak for comparison, but such datasets have not yet been accumulated and shared. Here, we provide a dataset on the perceived vulnerability to disease scale for 1382 Japanese participants obtained through an online survey conducted in 2018 that will be useful for comparison with current or post-COVID-19 perceived vulnerability to disease data.

scholarly journals A Bayesian approach to reveal the key role of mask wearing in modulating projected interpersonal distance during the first COVID-19 outbreak

PLoS ONE ◽  
2021 ◽  
Vol 16 (8) ◽  
pp. e0255598
Author(s):  
Matteo P. Lisi ◽  
Marina Scattolin ◽  
Martina Fusaro ◽  
Salvatore Maria Aglioti
Keyword(s):  
Situational Factors ◽  
Protective Equipment ◽  
Interpersonal Distance ◽  
Web Based ◽  
Perceived Severity ◽  
Perceived Vulnerability ◽  
Dispositional Factors ◽  
Perceived Vulnerability To Disease ◽  
Moral Attitudes

Humans typically create and maintain social bonds through interactions that occur at close social distances. The interpersonal distance of at least 1 m recommended as a relevant measure for COVID-19 contagion containment requires a significant change in everyday behavior. In a web-based experimental study conducted during the first pandemic wave (mid-April 2020), we asked 242 participants to regulate their preferred distance towards confederates who did or did not wear protective masks and gloves and whose COVID-19 test results were positive, negative, or unknown. Information concerning dispositional factors (perceived vulnerability to disease, moral attitudes, and prosocial tendencies) and situational factors (perceived severity of the situation in the country, frequency of physical and virtual social contacts, and attitudes toward quarantine) that may modulate compliance with safety prescriptions was also acquired. A Bayesian analysis approach was adopted. Individual differences did not modulate interpersonal distance. We found strong evidence in favor of a reduction of interpersonal distance towards individuals wearing protective equipment and who tested negative to COVID-19. Importantly, shorter interpersonal distances were maintained towards confederates wearing protective gear, even when their COVID-19 test result was unknown or positive. This protective equipment-related regulation of interpersonal distance may reflect an underestimation of perceived vulnerability to infection; this perception must be discouraged when pursuing individual and collective health-safety measures.

UNPUBLISHED, REJECTED MANUSCRIPT NOT TO BE RESUBMITTED: Infection and ideology- Perceived vulnerability to disease predicts political conservatism

2020 ◽  
Author(s):  
Joseph A Vitriol
Keyword(s):  
Immune System ◽  
Cultural Practices ◽  
The Political ◽  
World Values Survey ◽  
Perceived Vulnerability ◽  
Behavioral Immune System ◽  
The World ◽  
Political Conservatism ◽  
Perceived Vulnerability To Disease ◽  
Political Right

Recent research on the behavioral immune system suggests that perceived vulnerability to disease is associated with greater ingroup preference, conformity, and support for established cultural practices. However, little of this research has looked at the implications of perceived vulnerability to disease for an orientation linked to many of the above outcomes: ideology. In two studies, we test the hypothesis that perceived vulnerability to disease should be associated with greater political conservatism. In Study 1, we find a relationship between perceived vulnerability to disease and increases in conservatism over time. In Study 2, we use data from the World Values Survey to demonstrate that perceived vulnerability to disease predicts a stronger preference for the political right in a large sample of respondents from a wide variety of nations. Together, these results suggest that the consequences of the behavioral immune system may extend to abstract identifications like ideology.

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