Abstract
Cosmetic surgery is ever more affordable and accessible, but carries physical and psychological risks. Yet, no study to date has directly examined risk-taking behaviour under controlled conditions, beyond self-report and in relation to cosmetic surgery attitudes. We used the Balloon Analogue Risk Task and advanced computational modelling to measure decision-making behaviour and identify the latent parameters driving behaviour associated with cosmetic surgery attitudes in women with no cosmetic surgery history (N = 265) and a subsample of women with a cosmetic surgery history (N = 24). Risk taking was higher in women with greater acceptance and history of cosmetic surgery. Computational modelling revealed increased risk taking in women with greater acceptance of cosmetic surgery when decisions were made with greater knowledge of loss (risk) and not when the likelihood of loss was unknown (uncertainty). When women with greater acceptance of cosmetic surgery made decisions, they also placed less emphasis on possible losses (reduced loss aversion). Our findings suggest that women seeking cosmetic procedures may be less sensitive to losses and thus make more risky decisions. Greater emphasis should be placed on communicating potential losses rather than just the associated risks to women considering cosmetic procedures.
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Introduction
The ability to modify one’s body is ever-more affordable and accessible for people in developed and developing countries. Cosmetic procedures comprise both surgical interventions (cosmetic surgery, i.e. operations that involve cutting beneath the skin to change the body’s appearance for primarily aesthetic rather than medical goals) and a range of nonsurgical interventions (cosmetic treatments: e.g. injectables such as botulinum toxin (Botox) and hyaluronic acid, laser skin treatments, and cryolipolysis (fat freezing)). Over 10 million cosmetic surgeries and 14 million nonsurgical cosmetic treatments were performed worldwide in 2020 [1]. Importantly, cosmetic surgery (which is the primary focus of the current work) carries potential risks, including physical complications (e.g. scarring, bacterial infection, and bleeding) and negative psychological (e.g. anxiety, disappointment, and depression) [2] and social outcomes (e.g. negative evaluation and stigmatisation) [3]. Despite a substantial rise in the number of people undergoing surgical and nonsurgical cosmetic procedures, the factors that influence peoples’ decisions, including their propensity towards risk, remain poorly understood.
Existing research in this field has mostly focused on the psychosocial and cultural factors that influence the likelihood of undergoing cosmetic surgery [see 4,5,6 for reviews], by examining attitudes and drives towards cosmetic surgery using questionnaires, interviews, or focus groups [2, 7,8,9,10,11]. Notably, Park and Cho [10] surveyed 298 undergraduates to examine which psychological and socio-cultural factors explain the intention to receive cosmetic surgery in the future. They found that the perceived risk of cosmetic surgery was an important (significant) predictor of attitudes towards cosmetic surgery. However, no study to date has verified this association using experimental methods that allow risk-taking behaviour to be directly observed. Although self-report questionnaires and qualitative methods provide valuable insights into the conscious attitudes and self-reported behaviour associated with cosmetic surgery, experimental studies can provide further insights by examining people’s nonverbal behaviour under controlled laboratory conditions. Applying such methods to cosmetic surgery research stands to provide key insights about the psychological mechanisms that determine individual differences regarding risk and, particularly, differences in how people make decisions under risk.
Experimental, value-based decision-making tasks can quantify how people take decisions when faced with different options that have different perceived benefits and costs, including risk. People integrate such benefits and costs into a subjective value function according to their preferences, and make decisions accordingly [12]. These tasks can thereby quantify the relative influence of different benefits and costs on subjective value, and computational modelling of the observed choices can reveal some of the hidden drivers (latent parameters) underlying observable behaviour [see 13 for an introduction to these ideas]. For example, value-based decision-making tasks have revealed that although people normally prefer larger over smaller rewards, this situation changes when rewards are associated with costs, such as delays or risks [14]. The risks associated with cosmetic surgery may lead certain individuals to ‘discount’ the perceived rewards of cosmetic surgery, while other individuals may disregard such risks in favour of the perceived rewards associated with acquiring their chosen body appearance. However, no study to date has applied such methods to examine the relationship between attitudes and decisions about cosmetic surgery and risk-taking behaviours. This was the main aim of the current research.
We used the Balloon Analogue Risk Task [BART; 15], a widely accepted measure of risk-taking behaviour, during which participants must ‘pump’ a virtual balloon in order to ‘win’ money, but with every pump they also risk reaching a set but unknown ‘burst’ point in which all money from that trial is lost. Performance on the BART is related to real-world risk behaviours, including smoking [16], alcohol and substance use [17], gambling [18], risk-related sexual behaviour [19], and to personality traits including sensation seeking and impulsivity [20]. While the BART has some known limitations, particularly conflating decision-making under uncertainty (when outcome probabilities are not known) and risk (when outcome probabilities are known) [21, 22], as well as risk aversion (i.e. sensitivity to the value of reward) rather than loss aversion (i.e. sensitivity to negative outcomes; see Table 2 for further definitions), we have recently developed a dual, computational modelling approach that is capable of disambiguating between both sets of variables [23].
Using this approach here, we conducted the first experimental and computational study to assess risk taking in relation to cosmetic surgery attitudes and acceptance in a large sample of women without a history of cosmetic procedures, as well as in a second, independent but smaller sample of women who had undergone cosmetic procedures. We controlled for key characteristics such as body mass index [BMI; 24, 25], and related variables, including body image concerns, disordered eating, depression and anxiety. Based on previous self-report studies identifying risk-taking tendency as a factor that explains the intention to receive cosmetic surgery [10], we expected that greater acceptance of cosmetic surgery, or having undergone a cosmetic procedure, would predict a propensity to take greater risk during the BART. In further computational analyses we predicted that (after controlling for other variables) acceptance of cosmetic surgery would be associated with greater risk-taking behaviour during ‘risk’, but not ‘uncertainty’ trials and would be related to risk—rather than loss aversion.
Materials and Methods
Participants
We recruited 302 women to a laboratory-based study conducted at University College London. Participants responded to advertisements posted on message boards, social media, email and a university research participant pool (SONA). They were aged 18 years or above with a BMI >16.5 [consistent with a lower average observed in similar studies of this student population; see [23], and no reported history of eating disorder, neurological disease, or brain damage. Exclusion criteria were a history of psychiatric illness, substance abuse or dependency, or a first-degree relative with an eating disorder]. We excluded from analysis (see ‘Data Analysis’) participants who failed to complete key measures (i.e. the BART or cosmetic surgery measure; n = 27). This resulted in 265 participants who reported no previous cosmetic procedures and 10 who reported having undergone such procedures. A further 70 participants who reported no previous cosmetic procedures and 14 who reported having undergone such procedures sample were recruited at a public science event (n = 84). Our analyses were based on whether or not participants had undergone a cosmetic procedure, as described below (see ‘Data Analysis’). Demographic information based on these analyses is reported in Table 1.
The study was approved by an Institutional Research Ethics Committee (Project Number: 11781/001), and all participants gave written, informed consent prior to taking part.
Main Measures
Demographic Information and Cosmetic History
We recorded participant age, ethnicity, height, and weight (for calculation of body mass index; BMI), and whether they had previously undergone any cosmetic surgery or procedures (with response options: ‘yes’, ‘no’, and ‘prefer not to say’).
Acceptance of Cosmetic Surgery Scale [ACSS; 26]
The ACSS is a validated [26] assessment of both general cosmetic surgery attitudes and the willingness to undergo cosmetic surgical procedures. Fifteen items are rated on a 7-point Likert scale, ranging from 1 (‘Strongly Disagree’) to 7 (‘Strongly Agree’). Three dimensions are assessed: Interpersonal (i.e. self-oriented beliefs about the benefits of cosmetic surgery), Social (i.e. social motivations for having cosmetic surgery), and Consider (e.g. how likely an individual would be to undergo cosmetic surgery). A global score is computed (and was used as predictor variable in the current study) from the combined average of the three subscale scores. Higher scores indicate a greater acceptance of cosmetic surgery. Total score Cronbach’s alpha in this study = 0.84.
Eating Disorder Examination Questionnaire [EDE-Q; 27]
The EDE-Q is a self-report measure of eating disorder symptoms, derived from the clinician-administered Eating Disorder Examination [EDE; 28]. Its psychometric properties have been extensively studied (see e.g. [29]), and it is one of the most extensively used assessments of disordered eating. Items assess attitudes, feelings, and behaviours related to eating and body image experienced over the past 28 days. Each item is scored on a 7-point scale representing the frequency of specific behaviours, with higher scores reflect greater eating-related pathology. The EDE-Q includes four subscales (i.e. Restraint, Eating Concern, Shape Concern, and Weight Concern), and a Global score which an average based on the four subscales. In the current study we analysed the impact of both Global symptoms and eating restraint specifically, given our previous findings relating this particular aspect of eating disorder symptomology to risk taking [23]. Global score Cronbach’s alpha in this study = 0.91
Barratt Impulsivity Scale [BIS-11; 30]
The BIS-11 contains 30 items assessing three aspects of impulsiveness: (1) Motor Impulsiveness—i.e. acting without thinking, (2) Non-Planning Impulsiveness—i.e. a lack of forethought, and (3) Attentional Impulsiveness—i.e. an inability to focus attention or concentrate. Each item is rated on a 4-point scale with 4 indicating the most impulsive response (‘Rarely/Never’ = 1; ‘Almost Always/Always’ = 4). Scores for the three sub-scales, as well as a total score (used as predictor variable in the current study), are obtained by summing the relevant item responses. The higher the summed score, the higher the level of impulsiveness (minimum global score = 30, maximum = 120). Psychometric data for the BIS-11 indicate good convergent validity, test–retest reliability, and internal consistency [31]. Total score Cronbach’s alpha in this study = 0.84.
Balloon Analogue Risk Task [BART; 15]
The BART (see Fig. 1) is one of the most widely used measures of real-world risk taking [15]. The task involves participants ‘pumping’ a virtual balloon (by clicking a button) in order to win money. Each pump increases the size of the balloon and allows participants to win a small amount of money (i.e. £0.05), but at some point unknown to the participant, the balloon will burst. If participants ‘cash out’ the money they have earned into a permanent bank before the balloon bursts, they win the virtual money; however, if the balloon bursts beforehand they lose the money from that trial. The number of trials (balloons) and probability of burst per trial can be controlled by the experimenter. In the current study, participants completed 20 trials (balloons). The probability of burst for each trial was decided using an array of 116 numbers [15], with the number 1 designated as the balloon bursting. On each pump, a number was randomly selected from the array without replacement. Thus, with each click the probability of burst increases (i.e. 1/116 on first pump, 1/115 on second pump, etc.). Participants received standardised written instructions prior to completing the BART. At no point was the maximum number of pumps possible or probability of a burst mentioned. The number of trials (balloons) remaining, amount of money accrued on the current trial, and total amount of money in the permanent bank remained on screen, thereby allowing us to examine learning rates based on feedback.
BART Behavioural Measures
Although several behavioural measures can be derived from the BART [32], in the present study we calculated a widely used and recommended measure of explicit behavioural risk taking (our primary outcome variable): the number of pumps on trials in which the participant collected the accumulated money before the balloon burst (i.e. number of pumps).
Supplementary Control Measures
We assessed body image disturbances [BIDQ; 33], depression anxiety and stress [DASS-21; 34], and obsessive-compulsive symptoms [short version, OCI-R; 35] in a sub-sample of participants, and used these as controls in our analyses (see ‘Data Analysis’ section). Full details of these measures are provided in supplementary materials.
Procedure
Participants received an information sheet and completed a consent form prior to taking part, after which they completed the BART and questionnaires using a laptop computer. Participants who were tested in the laboratory at UCL completed all questionnaire measures, but those who took part at the public event completed a subset of these questionnaires (including only the BIS-11 and EDE-Q) due to time limitations. Completion of the study took approximately 30 min. Upon completion participants were thanked, debriefed, and given any compensation owed (i.e. either a small monetary reward for participants completing the study at UCL, or a small science-themed gift [brain-shaped eraser] at the public science event where monetary rewards were not permitted).
Computational Modelling
We used computational modelling to understand the latent processes driving observable behaviour on the BART. Firstly, we examined the role of uncertainty (i.e. decisions made when both the outcome and the probability distribution are unknown) and risk (i.e. when participants have gained some knowledge of the outcome probabilities) [see 21, 22 for an in-depth discussion]. We developed this model by adapting an existing model of the BART [36]. The model assumes that in earlier trials of the BART decision making is driven by higher uncertainty and exploration to reduce uncertainty (exploration stage), while in the later trials uncertainty has reduced and risk taking drives behaviour (exploitation stage). Participants are assumed to hold a belief in the probability that they will reach the maximum limit (loss limit) during each of these two stages, and that a transition from exploration to exploitation occurs at a specific moment (threshold). Thus, the model has three parameters: (a) Prior Probability of Loss Belief (loss belief during uncertainty/exploration), (b) Posterior Probability of Loss Belief (loss belief during risk/exploitation), and (c) Threshold (the trial at which the transition from Exploration to Exploitation takes place).
Secondly, we examined whether (pumping) behaviour was driven by risk aversion or loss aversion, using the Exponential-Weight Model (EW model) [37, 38]. The EW model describes how sequential decisions are made during the BART, assuming that participants have a belief about the probability that the balloon will reach the maximum (loss limit), and that this belief is updated during the task through learning and evaluation that involves five parameters. Two of the model’s parameters are of relevance to the current study: risk aversion (ρ) indicates an individual’s sensitivity to the value of reward change, such that individuals with higher risk avoidance take less risk to get the same amount of reward. Loss aversion (λ) indicates an individual’s sensitivity to negative outcomes, such that potential loss is perceived as more severe at higher λ.
For both sets of modelling, we tested the fit (measuring the discrepancy between observed data and model predictions, while penalising for model complexity) and compared the models using Maximum Likelihood Estimation (MLE), BIC, and AIC. We selected the winning model by comparing these models with baseline models that assume no change in uncertainty, nor any influence of loss avoidance (respectively), in the participants’ behaviour. We then validated the recovered parameters by looking into their distributions and by using them in our model to generate simulations of behaviour on the BART which were compared to the actual participant BART behaviour [see Supplementary Materials for full details and results of this process, and 13 for descriptions of these different steps]. We subsequently used the parameters of the winning models in our analyses (see Analysis below, and Table 2 for a summary of computational parameters).
Data Analysis
We first ran descriptive statistics (see Table 1) and zero-order correlations (see Supplementary Materials) with our main independent variables to examine for possible collinearity. To orthogonalize independent variables with suspected collinearity (e.g. ACSS, EDE-Q Global, and BIS-11 scores) we used the fa function from the psych R package which performs the principal factor solution. The orthogonalization gave results where each one of the initial variables had a reliable 1-to-1 correspondence to one resulting factor variable (loadings were higher than 0.98, average analysis complexity of 1, equal proportion of explained variance, and Tucker Lewis Index of factoring reliability of 1). This indicates that the new factors captured the variance explained by the initial variables while being orthogonal to each other, thus addressing the issues of collinearity that were present in the initial variables. We used these orthogonalized factor scores rather than the raw scores in all analyses.
Risk Taking in Women without Existing Cosmetic Procedures
Our first set of analyses used the data collected from women tested in the laboratory at UCL (n = 265) who had not undergone any cosmetic surgery (see Table 1). A series of linear mixed-effect models (LMM) examined if cosmetic surgery attitudes and behaviours (ACSS total score) predict risk taking (number of pumps on the BART). In our main analyses, we included age, BMI, eating disorder symptoms (Global EDE-Q score), and impulsiveness (BIS-11) as fixed effects (covariates), and Experimenter as a random effect to account for possible variability due to multiple experimenters. We ran this same analysis substituting Global EDE-Q with EDE-Q Restraint score, given previous evidence of its specific influence on risk taking [23]. We also carried out a series of control analyses in this sample where measures of body image concerns (BID-Q), obsessive-compulsive symptoms (OCI-R), and mood (DASS-21) were available, examining the influence of each control variable on the relationship between acceptance of cosmetic surgery (ACSS) and risk taking.
We then used computational modelling to examine whether pumping behaviour varies when making decisions under uncertainty versus risk and to disentangle the underlying role of risk versus loss aversion in participants’ decision making. We entered the same set of predictor variables (i.e. age, BMI, ACSS total, BIS-11, and EDE-Q Global/Restraint) in a series of LMMs, using as dependent variables the three parameters of our computational model of uncertainty versus risk: (1) prior probability of burst belief (i.e. burst belief during the initial exploration phase of the task), (2) posterior probability of burst belief (i.e. burst belief during the later exploitation phase of the task), and (3) threshold (i.e. the trial at which the transition from exploration to exploitation takes place). We then examined whether (pumping) behaviour was driven by risk aversion or loss aversion. We entered these same variables again as predictors in two LMMs, using as dependent variables the parameters from our computational modelling of risk versus loss aversion: (1) risk aversion (ρ) and (2) loss aversion (λ). Finally, we examined whether observed effects were modified by our control variables.
Risk Taking in Women with Existing Cosmetic Procedures
We conducted a separate analysis comparing all women who reported having undergone cosmetic surgery (including those tested at the laboratory and the public event; ‘Cosmetic Yes’ group; n = 24) to women recruited at the public event who had never undergone cosmetic surgery (‘Cosmetic No’ group), and classified as either ‘high’ (n = 18) or ‘low’ (n = 17) acceptance of cosmetic surgery using their ACSS total scores (i.e. high ACSS = score above the 75th percentile; low ACSS = score below the 25th percentile), in order to have more balanced comparison groups (see Table 1). We classified participants as having undergone cosmetic surgery based on an affirmative answer to questions regarding their past engagement with cosmetic procedures (see Measures). Subsequent analyses of behavioural data and computational modelling were performed using Group (Cosmetic Yes vs. High ACSS vs. Low ACSS), BMI and age (but no other covariates or control analyses as these were not collected from the public event participants due to time constraints) as predictor variables. Where samples drawn from different recruitment locations (UCL vs. public event) were combined for analysis, we included ‘Study’ (i.e. experimenter) as a Random variable in our analysis to account for study effects.
Analytical Procedures
To fit our linear mixed-effects models (LMM) to data we used the lmer R function of the lme4 package. To generate the results table for our lmer-fitted models we used the tab_model function of R from the sjPlot package. In this package, for linear mixed models (lmerMod-objects), the computation of p-values (if p.kr = TRUE) is based on conditional F-tests with Kenward–Roger approximation for the df, using the pbkrtest package. In results we present for each variable: (i) the slope b and it 95% CI, (ii) p-value, and (iii) the R2-marginal increase, a measure of effect size that allows the unique contribution of each predictor to be identified the (i.e. variance explained with variable in the full model—variance explained without predictor in the model). Where the total variance explained by random effects (ICC) was <.001 we removed the variable from the model to avoid having redundant random effects.
Results
Risk Taking in Women Without Existing Cosmetic Procedures
Descriptive Statistics
Descriptive statistics (M and SD) are reported in Table 1. Correlations between variables and reliability statistics are reported in Supplementary Materials.
BART Performance
Results of the LMM that included age, BMI, acceptance of cosmetic surgery (ACSS), eating disorder symptoms (Global EDE-Q), and impulsivity (BIS-11) as predictors of risk-taking (pumping) behaviour indicated that acceptance of cosmetic surgery, impulsivity, and age were all significant predictors of the total number of pumps (see Figure 2, Panel A). Of particular interest to our current hypothesis, as acceptance of cosmetic surgery increases, the total number of balloon pumps participants make also increases (b = 1.68, p =.033, 95% CI [0.14–3.22]; R2Marginal Increment = 0.013). Likewise, as impulsivity increases so does the total number of balloon pumps (b = 1.91, p =.037, 95% CI [0.11–3.71]; R2Marginal Increment = 0.012). By contrast, increasing age predicts fewer balloon pumps (b = − 0.34, p =.006, 95% CI [− 0.59–− 0.10]; R2Marginal Increment = 0.011). Eating disorder symptoms, while not statistically significant, showed an effect direction consistent with our previous research looking at eating restraint [23], such that increasing eating disorder symptoms predicts a decrease in pumping (b = − 1.21, p =.112, 95% CI [− 2.71–0.28]; R2Marginal Increment = 0.004). Running these same analyses with eating restraint as a covariate instead of global eating disorder symptoms produced the same pattern of results, and including our control variables did not substantially reduce the observed effect of cosmetic surgery attitudes on risk-taking (pumping) behaviour (see Supplementary Materials).
Uncertainty Versus Risk
Our LMM that included age, BMI, acceptance of cosmetic surgery (ACSS), eating disorder symptoms (Global EDE-Q), and impulsivity (BIS-11) as predictors of a participant’s belief about the probability that a burst will occur (herein: burst belief) during the initial, uncertainty (exploration) phase of the task, identified only age as a significant predictor (b = 0.02, p =.015, 95% CI [0.00–0.03]; R2Marginal Increment = 0.014). Running this analysis using eating restraint as a covariate instead of global eating disorder symptoms produced the same pattern of results.
A LMM using the same main predictor and outcome variables in relation to the later, risk-taking (exploitation) phase of the task indicated that (in addition to age; b = 0.03, p <.001, 95% CI [0.01–0.04]; R2Marginal Increment = 0.045), acceptance of cosmetic surgery (b = − 0.08, p =.040, 95% CI [− 0.17–0.00]; R2Marginal Increment = 0.011), and eating disorder symptoms (b = 0.08, p =.044, 95% CI [0.00–0.16]; R2Marginal Increment = 0.013) were significant predictors of burst belief (see Fig. 2, Panel B). As acceptance of cosmetic surgery increases, burst belief decreases. By contrast, as eating disorder symptoms increase, burst belief increases. Again, running these analyses using eating restraint as a covariate instead of global eating disorder symptoms produced the same overall pattern of results, but with acceptance of cosmetic surgery showing a trend (b = − 0.08, p =.055, 95% CI [− 0.16–0.00]; R2Marginal Increment = 0.009), and eating restraint having a slightly larger and more significant effect (b = 0.10, p =.015, 95% CI [0.02–0.17]; R2Marginal Increment = 0.019). Including our control variables did not substantially reduce the observed effect of cosmetic surgery attitudes on burst beliefs (see Supplementary Materials).
Avoidance of Loss Versus Risk
In two final analyses we used separate LMMs to examine whether the behaviour of participants was driven by avoidance of loss or risk. Both analyses included our standard set of predictor variables (i.e. age, BMI, acceptance of cosmetic surgery, eating disorder symptoms/eating restraint, and impulsivity), with either loss (λ) or risk (ρ) aversion used as outcome variables. Results of the LMMs predicting loss aversion (λ) revealed acceptance of cosmetic surgery to be the sole, significant predictor of loss aversion (see Fig. 2, Panel C; b = − 0.09, p =.037, 95% CI [− 0.17–− 0.01]; R2Marginal Increment = 0.02 when including global eating disorder symptoms; and b = − 0.09, p =.040, 95% CI [− 0.17–0.00]; R2Marginal Increment = 0.02 when including eating restraint). As acceptance of cosmetic surgery increases, loss aversion decreases. Including our control variables in these statistical models did not substantially reduce this relationship (see Supplementary Materials). By contrast, none of our main variables were significant predictors of risk aversion (ρ).
Risk Taking in Women with Existing Cosmetic Procedures
BART Performance
The LMM that included age, BMI, and Group (Cosmetic Yes vs. High ACSS vs. Low ACSS), as predictors of risk-taking behaviour, indicated that BMI was a significant predictor of the total number of pumps, with higher BMI predicting greater risk taking (b = 0.79, p = .039, 95% CI [0.04–1.53], R2Marginal Increment = 0.04). Group showed a statistical trend and an effect direction consistent with that found in our first set of analyses in women who had not undergone cosmetic surgery, i.e. women who had undergone cosmetic surgery took more risk than women who scored low in their acceptance of cosmetic surgery (Figure 3; b = 7.85, p = .099, 95% CI [− 1.46–17.16], R2Marginal Increment = 0.025), and including our control variables did not substantially reduce this effect (see Supplementary Materials).
Uncertainty Versus Risk
Using these same predictor variables to examine burst beliefs during uncertainty (aka phase 1: exploration) and risk (aka phase 2: exploitation) showed that BMI (b = − 0.06, p = .003, 95% CI [− 0.10–− 0.02], R2Marginal Increment = 0.148) and Group were significant predictors when decisions were made under conditions of risk, but not uncertainty. The direction of the Group effect was consistent with that observed in our analyses of women without a history of cosmetic surgery: women who had undergone cosmetic surgery and the subgroup of women who had high acceptance of cosmetic surgery held a significantly lower belief that the balloon would burst compared with women with a low acceptance of cosmetic surgery (cosmetic yes: b = − 0.61, p = .020, 95% CI [− 1.11–− 0.10], R2Marginal Increment = 0.107; ACSS high: b = − 0.71, p = 0.015, 95% CI [− 1.27–− 0.14], R2Marginal Increment = 0.107). Including our control variables did not substantially reduce this effect (see Supplementary Materials).
Avoidance of Loss Versus Risk
Our examination of loss versus risk avoidance indicated that age (b = − 0.03, p = 0.028, 95% CI [− 0.05–0.00], R2Marginal Increment = 0.088) and BMI (b = − 0.05, p = .003, 95% CI [− 0.09–− 0.02], R2Marginal Increment = 0.157) were significant predictors of loss avoidance. Group did not significantly predict loss or risk avoidance; however, the observed effects (b-values) were consistent with those observed in our analyses of women without a history of cosmetic surgery, with increased acceptance of cosmetic surgery (i.e. cosmetic yes and high ACSS groups) being associated with less loss avoidance (cosmetic yes: b = − 0.04, p = 0.861, 95% CI [− 0.52–0.44], R2Marginal Increment = 0.043; ACSS high: b = − 0.36, p = 0.142, 95% CI [− 0.85–0.13], R2Marginal Increment = 043) but no effects in relation to risk avoidance (cosmetic yes: b = 0.00, p = 0.609, 95% CI [− 0.02–0.01], R2Marginal Increment = 007; ACSS high: b = 0.00, p = 0.766, 95% CI [− 0.02–0.01], R2Marginal Increment = 007). Including our control variables in these statistical models did not substantially reduce the observed effects (see Supplementary Materials).
Discussion
We used experimental and computational methods to examine the relationship between cosmetic surgery attitudes and history, and factors that drive risk-taking behaviour. We predicted that greater acceptance of cosmetic surgery, or having undergone a cosmetic procedure, would predict greater risk-taking behaviour (balloon pumping). Our results support this hypothesis, finding significantly greater risk-taking behaviour in women with greater acceptance of cosmetic surgery, as well as (a statistical trend for) increased risk taking in a smaller sample of women with a history of cosmetic procedures. Furthermore, using a previously validated method of computationally modelling performance on the risk-taking task [23, 38], we were able to draw conclusions regarding the latent (hidden) parameters that may drive participants’ behaviour. More specifically, we were able first to determine that, as predicted, the observed increased risk taking related to how participants in both samples made decisions when the task involved ‘risk’ (knowing the probabilities of loss), and not ‘uncertainty’ (not knowing the probabilities of loss), or the point at which people switch from uncertainty to risk. Secondly, contrary to our predictions, we found a reduction in loss rather than risk aversion in women with increased acceptance of cosmetic surgery and women with a history of cosmetic procedures. In other words, our findings suggest that cosmetic surgery candidates may place less emphasis on what are the possible losses at stake (i.e. their choices are driven by reduced loss aversion) and, thus, make more risky choices. Moreover, we found that the observed relationships between cosmetic surgery attitudes and risk taking were over and above any effects of age, BMI, eating disorder symptomology and impulsivity, and not reduced by the inclusion of obsessive-compulsive symptoms, body image concerns, or mood variables in the analyses.
Understanding the motivating factors that drive cosmetic surgery acceptance is important, as cosmetic procedures carry inherent medical risks (e.g. infection) and have potentially negative psychological outcomes (e.g. disappointment) [2] and psychosocial consequences (e.g. negative perceptions from people) [3]. Our findings add to a growing body of empirical work that has attempted to understand the demographic, personal, and clinical factors that predict cosmetic surgery acceptance or the intention to undergo surgery [7, 8, 10, 39]. However, no study to date has used experimental and computational methods of decision making to characterise the underlying cognitive-motivational factors associated with cosmetic surgery attitudes and choices. These methods complement existing studies, by allowing participants’ performance when making decisions involving risk to be measured and the underlying drivers of observed behaviour to be analysed.
Our finding of greater risk-taking behaviour driven by reduced loss aversion in women with greater acceptance of cosmetic surgery is previously undocumented and important for clinicians working with individuals seeking cosmetic procedures. Individuals who are considering cosmetic surgery may be more inclined to make risky decisions, even when presented with information about the likelihood of adverse outcomes. In particular, our results suggest that cosmetic surgery candidates may be less influenced by (i.e. give less psychological weight and attention to) information about the possible adverse outcomes (losses) associated with surgery. Hence, policies regarding the presentation of the risks of cosmetic surgery may need to place particular emphasis not only on how risky, or uncertain the various procedures are, but what are the particular negative consequences, or side effects that an individual may face. Based on these characteristics, people considering cosmetic surgery need to understand the risks and potential losses better, and research that investigates how best to provide such information so that people can imagine it as relevant to their ‘future self’ is needed. This might include examining different ways of verbalising or visualising risk- and loss-related information, and assessing whether giving information using different methods helps those with high risk-taking tendencies to consider the potential losses associated with cosmetic surgery to a greater extent.
Further research also needs to examine the extent to which our findings generalise to different populations. Future research needs to examine risk taking associated with cosmetic surgery attitudes and intentions in men, since different standards of physical attractiveness apply to men and women [40], and existing research suggests gender differences in risk taking [41]. Socioeconomic, demographic, cultural, and ethnic factors also influence attitudes and drives towards cosmetic surgery [4, 7, 24, 42], and research is needed to examine whether risk-taking tendencies interact with such factors to influence cosmetic surgery attitudes and intentions. Our sample of women with a history of cosmetic procedures was also relatively small, and although the effects found in this sub-sample were consistent with the (statistically) significant effects found in the larger sample of women whose attitudes towards cosmetic surgery were measured, future research is needed to confirm our findings in individuals with a history of cosmetic surgery.
Finally, we note some strengths and limitations of using the BART. The BART is a widely used and validated measure of risk taking, and a good proxy of real-world risk-taking behaviour [15, 16, 43]. Moreover, our use of computational modelling allowed us to overcome known limitations of the BART [22] and identify the latent variables that drive observable behaviour. However, an interesting area for future research is to examine how more salient, body-based rewards might influence risk taking. In recent research involving women with restrictive eating (including women with anorexia nervosa), we found that body-based stimuli with high social–motivational salience (i.e. images of women of varying degrees of ‘thinness’) moderated risk-taking behaviour, with greater risk taking observed in women with greater restrictive eating when decisions were linked to an thinner versus a larger body [23]. An interesting area for future research would be to examine whether cosmetic surgery-related risk taking is even greater when the potential reward is obtaining their ideal body after surgery, such as when specific, desired body modifications (e.g. nose, lip, or eye reshaping) are at stake.
In summary, our results suggest that when making decisions, women seeking cosmetic procedures may be less sensitive to possible losses and may thus take more risky decisions, and that a greater emphasis should, therefore, be placed on communicating potential losses (what one stands to lose) rather than just the associated risks (how likely one is to suffer some loss) of cosmetic procedures.
Data and Code Availability
Data and code used in the research are available via GitHub: https://github.com/katlaboratory/risktaking_cosmetic.
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Acknowledgements
For their assistance with data collection we thank: Rita El Hachem, Sing Yee Wong, Benjamin Ang, Raluca-Alexandra Petre-Melinte, Yu Chow, Faith Shu Ting, Yvonne Van Hoecke, and Alkistis Saramandi.
Funding
This work was supported by a European Research Council Consolidator Award [ERC- 2018-COG-818070] to A.K. and PhD studentship awarded to E.P from the Economic and Social Research Council (ESRC) and Neuropsychoanalysis Foundation (NPSA).
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Aikaterini Fotopoulou reports financial support was provided by European Research Council. Elena Panagiotopoulou reports financial support was provided by the Economic and Social Research Council and Neuropsychoanalysis Foundation. The remaining authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
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Jenkinson, P.M., Panagiotopoulou, E., Koukoutsakis, A. et al. Greater Risk Taking in Cosmetic Surgery Acceptance and History: An Experimental and Computational Study. Aesth Plast Surg (2024). https://doi.org/10.1007/s00266-024-03910-9
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DOI: https://doi.org/10.1007/s00266-024-03910-9