Perception of human body modification

Self-reported high-risk behavior among first-time and repeat replacement blood donors; a four-year retrospective study of patterns

BACKGROUND

There is no replacement for blood, and patients requiring transfusion depend on human donors, most of whom are family donors. Family donors may deny engagement in high-risk activities, which threaten the safety of donated blood. This study determined frequency of self-reported high-risk behaviors among replacement donors.

METHODS

This retrospective study recruited 1317 donor records from 2017-2020, at Mankranso Hospital, Ghana. Data from archived donor questionnaires were extracted and analyzed with SPSS and GraphPad. Frequencies, associations, and quartiles were presented.

RESULTS

The donors were predominantly males (84.4%), 17-26 years old (43.7%), informal workers (71.8%), rural inhabitants (56.5%), first-time (65.0%), and screened in the rainy season (56.3%). Donation frequency was significantly associated with age, sex, occupation, and residence. Repeat donors were significantly older (p≤0.001). More males than females were deferred (p = 0.008), drug addicts (p = 0.001), had body modifications (p = 0.025), multiple sexual partners (p = 0.045), and STIs (p≤0.001), whereas, more females were recently treated (p = 0.044). Weight loss (p = 0.005) and pregnancy (p = 0.026) were frequent among 17-26-year group, whereas, tuberculosis was frequent among 37-60-year group (p = 0.009). More first-time donors were unwell (p = 0.005), deferred (p≤0.001), pregnant (p = 0.002), drug addicts, had impending rigorous activity (p = 0.037), body modifications (p = 0.001), multiple sexual partners (p = 0.030), and STIs (p = 0.008). STIs were frequent in the dry season (p = 0.010). First-time donors had reduced hemoglobin (p = 0.0032), weight (p = 0.0003), and diastolic pressure (p = 0.0241).

CONCLUSION

Donation frequency was associated with age, sex, occupation, and residence, with first-time donors younger than repeat donors. Deferral from donation, drug addiction, body modification, multiple sexual partners, and STIs were frequent among males, whereas, more females received treatment. Tuberculosis was frequently reported among older adults, whereas, weight loss and pregnancy were frequent among younger individuals. More first-time donors reported being unwell, deferred, drug addiction, body modifications, multiple sexual partners, STIs, and pregnant. Hemoglobin, weight, and diastolic BP were reduced among first-time donors.

Tattooing as a phenotypic gambit

OBJECTIVES

Tattooing is not an evolved behavior, but it may be a phenotypic gambit to highlight immunological health. Phenotypic gambits are traits or behaviors that appear costly but occur at high rates as a honing process of natural selection not constrained by genetics. Tattooing is an ancient practice that is increasing in popularity worldwide, but it involves wounding the body, which seems counterintuitive because it challenges the immune system and makes one more susceptible to infection. But tattooing may represent a costly honest signal of fitness by "upping the ante" in an era of hygiene or a means to stimulate the immune system in a way that improves and highlights underlying fitness.

MATERIALS AND METHODS

We investigated this hypothesis by assessing bacteria killing activity (BKA) in saliva samples collected during two studies of tattooing (N = 40). We compared previous tattoo experience (extent of body tattooed and hours spent being tattooed) to BKA before and after getting a new tattoo.

RESULTS

Tattoo experience positively predicts post-tattoo BKA (β = 0.48, p = 0.01), suggesting that people with more tattoo experience have a relatively more immediate and active immune response than those with less tattoo experience.

DISCUSSION

Tattoo experience may elevate innate immunological vigilance, which could aid in protecting against future dermal insults.

Fluctuating asymmetry of finger lengths, digit ratio (2D:4D), and tattoos: A pre-registered replication and extension of Koziel et al. (2010)

BACKGROUND

Tattoos bring risks yet no obvious evolutionary benefit. Koziel et al. (2010) reported increased fluctuating symmetry (a proxy for low developmental instability) in tattooed men, suggesting they could serve as fitness indicators.

AIMS

We replicate and extend the findings of Koziel et al. by examining fluctuating asymmetry of finger lengths and digit ratio (2D:4D) (a putative indicator of prenatal testosterone exposure) as predictors of adult tattoo prevalence.

STUDY DESIGN

We used an online survey with a correlational design.

SUBJECTS

Participants were recruited from the UK and Poland via university participant pools and social media. Data were available for presence/absence of tattoos and at least one predictor variable (composite Fluctuating Asymmetry [cFA], right-hand digit ratio [R2D:4D] and left-hand digit ratio [L2D:4D]) for n = 186 males and n = 997 females.

OUTCOME MEASURES

We firstly assessed presence/absence of tattoos; when at least one tattoo was present, we also examined overall number and highest visibility.

RESULTS

Greater cFA was associated with lower likelihood of having tattoos in males, though in females greater cFA was associated with higher numbers of tattoos. R2D:4D and L2D:4D correlated negatively with number of tattoos in males, and a positive correlation between L2D:4D and number of tattoos was observed in females. However, these latter findings did not remain significant after controlling for covariates.

CONCLUSIONS

Tattoos may act as fitness indicators in males, though this explanation appears not to extend to females. Prenatal testosterone may also play a role, though doubt is cast on this premise because 2D:4D effects did not remain statistically significant after controlling for covariates.

Tattooed and Non-Tattooed Women: Motivation, Social Practices and Risk Behavior

Abstract This study aimed at identifying motivations, risk behavior and social practices, comparing tattooed and non-tattooed women. 316 women (50% tattooed) were surveyed online, answering questions on sociodemographic data, social practices, motivations, and risk behavior. Data collection strategies included snow-balling, social networks, personal contact, and visits to tattoo parlors. The main results indicate that the majority of women express satisfaction with their physical appearance after getting tattooed, and wouldn’t get the tattoo removed. Being tattooed correlated with risk behaviors such as casual sex with unknown people, alcohol and drug use, and psychopathology. The sample presented more similarities than differences between tattooed and non-tattooed groups, suggesting that growing popularization and social acceptance of tattooing has led to a decrease of the differences between the groups. Such results may inform future research and the production of informative materials aimed at demystifying negative stereotypes associated to tattoos.

The Defendant with the Prison Tattoo: The Effect of Tattoos on Mock Jurors' Perceptions

Little is known about the potential for tattoos to bias how defendants are perceived. In Study 1, the participants (n = 30) viewed photographs of five men with a tattoo (prison or modern style) on the face and neck or arm. Individuals with prison-style tattoos were perceived more negatively, especially when the tattoos were located on the face and neck compared to the arm. In Study 2, participants (n = 120) were shown a photograph of a defendant who either had a prison-style tattoo or no tattoo, and read a scenario describing a physical assault (with either strong or weak evidence). Perceptions of defendant dangerousness mediated the relationship between the presence of a tattoo and mock jurors' perceptions of guilt.

Tattoos as a window to the psyche: How talking about skin art can inform psychiatric practice

Tattooing the skin as a means of personal expression is a ritualized practice that has been around for centuries across many different cultures. Accordingly, the symbolic meaning of tattoos has evolved over time and is highly individualized, from both the internal perspective of the wearer and the external perspective of an observer. Within modern Western societies through the 1970s, tattoos represented a cultural taboo, typically associated with those outside of the mainstream such as soldiers, incarcerated criminals, gang members, and others belonging to marginalized and counter-cultural groups. This paper aims to review the more recent epidemiology of tattoos in Western culture in order to establish that tattooing has become a mainstream phenomenon. We then review psychological and psychiatric aspects of tattoos, with a goal of revising outmoded stigmas about tattooing and helping clinicians working with tattooed patients to facilitate an exploration of the personal meaning of skin art and self-identity. We suggest that as a kind of augmentation of the physical exam, looking at and talking to patients about their tattoos can provide a valuable window into the psyche, informing clinical practice.

Evidence of negative implicit attitudes toward individuals with a tattoo near the face

Three studies examined if people express negative implicit attitudes toward individuals with a tattoo near the face. In Study 1, participants who completed an Implicit Association Test (IAT) expressed moderately negative implicit attitudes toward individuals with a tribal tattoo on one side of the neck. Study 2 replicated Study 1 when the tattoo was symmetrical, suggesting that negative affect, and not processing fluency, underlies the implicit negative evaluation of individuals with a tribal tattoo near the face. Study 3 showed dissociation between explicit and implicit attitudes toward individuals with a tribal tattoo near the face, and that the negative implicit evaluation was attenuated if the tattoo image was an objectively positive symbol. The implications for displaying a tattoo near the face are discussed.

The Future of an Applied Evolutionary Psychology for Human Partnerships

There has been significant recent progress in our understanding of human mate choice. We outline several frontiers of rapid cultural change which may increasingly directly affect individual self-evaluation in the mating market, formation and maintenance of long-term partnerships, and potentially reproductive outcome and child health. Specifically, we review evidence for the effects of (1) increasing exposure to mass media, (2) the advent of novel ways to meet potential partners, and (3) cultural influences which may disrupt or alter the expression of evolved mate preferences. We comment on the potential for these effects to influence self-perception and partner-perception, with downstream effects on relationship satisfaction and stability. A common theme emerges, which is that these effects may contribute to relationship dissatisfaction and dissolution, with negative implications for societal change. We then address how we envisage evolutionary psychology research may focus on and offer informed approaches to ameliorate these effects in the future. We picture the development of a field of applied evolutionary psychology, and we suggest that this will increasingly become a central focus for many researchers.