Megan Oaten’s research while affiliated with Griffith University and other places

Previous studies found similarities in adults' disgust responses to benign (e.g. obesity) and actual disease signs (e.g. influenza). However, limited research has compared visual (i.e. benign and actual) to cognitive (i.e. disease label) disease cues in different age groups. The current study investigated disgust responses across middle childhood (7-9 years), late childhood (10-12 years), adolescence (13-17 years), and adulthood (18+ years). Participants viewed individuals representing a benign visual disease (obese), sick-looking (staphylococcus), sick-label (cold/flu), and healthy condition. Disgust-related outcomes were: (1) avoidance, or contact level with apparel the individual was said to have worn, (2) disgust facial reactions, and (3) a combination of (1) and (2). Avoidance was greater for the sick-looking and sick-label than the healthy and obese conditions. For facial reaction and combination outcomes, middle childhood participants responded with greater disgust to the sick-looking than the healthy condition, while late childhood participants expressed stronger disgust towards the sick-looking and obese conditions than the healthy condition. Adolescents and adults exhibited stronger disgust towards sick-label and sick-looking than obese and healthy conditions. Results suggest visual cues are central to children's disgust responses whereas adolescents and adult responses considered cognitive cues.

Pain is rarely suffered alone. In contemporary online contexts, publicly shared pain can command the collective attention of hundreds, even millions of people. We sought to explore the possibility that collectively attending to others' pain promotes affiliation among those with whom it is attended online and identify the mechanisms that mediate these effects. Across two experimental studies, utilizing independent group designs, physically dispersed undergraduate students attended to real‐world videos depicting either physical, social, or no‐pain online. In Study 1 (N = 74, 66.22% female, Mage = 25.31 years, SDage = 6.81 years), we found evidence for the phenomenon of pain collectively attended to online, with online videos depicting physical and social pain eliciting stronger perceptions of collective attention than the non‐painful online video. In Study 2 (Time 1: N = 185, 75.14% female, Mage = 22.62 years, SDage = 7.44 years; Time 2: N = 91, 72.53% female, Mage = 23.32, SDage = 8.19), we subsequently found collectively attending to others' physical and social pain online indirectly promoted cohesion, interpersonal closeness, and desire to affiliate among participants through perceived emotional synchrony. This pattern of indirect effects was found immediately after collective attention to painful online content (Time 1) and at 1‐week follow‐up (Time 2). Although preliminary, our findings increase practical understanding of how shared pain can be harnessed to bond physically dispersed individuals together online, the implications of which we discuss in the context of the COVID‐19 pandemic.

Objective: Avoidance of colorectal cancer (CRC) screening is well documented with emotional barriers deterring screening intention and uptake. However, the assessment of such aversion is limited by the available instruments focusing on siloed emotions or screening procedures, limiting relevance to the complete process of decision-making in the CRC context. Methods: To address this gap, psychometric properties of the newly developed Aversion to Bowel Cancer Screening Scale (ABCSS) were assessed using data from 640 CRC screening eligible asymptomatic community members. Item review and piloting reduced 179 items to the initial 29-item scale. Using a holdout sample technique, exploratory and confirmatory factor analysis, reliability and validity checks were conducted. Results: A three-factor model (Fecal Occult Blood Test [FOBT] Aversion, Colonoscopy Aversion and Health Conscientiousness) with 21 items was identified. Analyses of the 21-item ABCSS indicated excellent reliabilities for the scale and subscales (α = .91 to .95). Correlations with relevant existing measures, intention and behaviour indicated good construct validity. Conclusion: The ABCSS is a valid measure of aversion to CRC screening for asymptomatic community members facing the decision to undertake CRC screening. This instrument may provide a more comprehensive understanding of the decision-making process for CRC screening.

We aimed to determine (1) the attributes of multiple stigmatized populations, (2) whether Kurzban and Leary’s (2001) functional typology of stigma emerges and identifies the dimensions upon which each stigma type differs, and (3) the emotional responses toward emergent stigma types. Participants ( N = 2,674) were assigned to 1/52 stigma target conditions and their attitudes surveyed. Data were analyzed by multilevel factor analysis with stigma targets at Level 2. There were five within-factors at Level 1 (social competence, interpersonal access, social inclusion, immorality, perceived permanence) and three between-factors at Level 2 (interpersonal stigmatization, morality-based stigmatization, chronic stigmatization). Interpersonal stigmatization was predicted by disgust and pity, and morality-based stigmatization was predicted by disgust and [-]happiness, with no predictors for chronic stigmatization. These results support a functional typology of stigma.

Animals fed a Western-style diet (WS-diet) demonstrate rapid impairments in hippocampal function and poorer appetitive control. We examined if this also occurs in humans. One-hundred and ten healthy lean adults were randomized to either a one-week WS-diet intervention or a habitual-diet control group. Measures of hippocampal-dependent learning and memory (HDLM) and of appetitive control were obtained pre- and post-intervention. HDLM was retested at three-week follow-up. Relative to controls, HDLM performance declined in the WS-diet group (d = 0.43), but was not different at follow-up. Appetitive control also declined in the WS-diet group (d = 0.47) and this was strongly correlated with HDLM decline (d = 1.01). These findings demonstrate that a WS-diet can rapidly impair appetitive control in humans-an effect that could promote overeating in consumers of a WS-diet. The study also suggests a functional role for the hippocampus in appetitive control and provides new evidence for the adverse neurocognitive effects of a WS-diet.

The behavioral avoidance of people with obesity is well documented, but its psychological basis is poorly understood. Based upon a disease avoidance account of stigmatization, we tested whether a person with obesity triggers equivalent self‐reported emotional and avoidant‐based responses as a contagious disease (i.e., influenza). Two hundred and sixty‐four participants rated images depicting real disease signs (i.e., person with influenza), false alarms (i.e., person with obesity), person with facial bruising (i.e., negative control), and a healthy control for induced emotion and willingness for contact along increasing levels of physical proximity. Consistent with our prediction, as the prospect for contact became more intimate, self‐reported avoidance was equivalent in the influenza and obese target conditions, with both significantly exceeding reactions to the negative and healthy controls. In addition, participants reported greatest levels of disgust toward the obese and influenza target conditions. These results are consistent with an evolved predisposition to avoid individuals with disease signs. Implicit avoidance occurs even when participants know explicitly that such signs—here, obese body form—result from a noncontagious condition. Our findings provide important evidence for a disease avoidance explanation of the stigmatization of people with obesity.

Objective: Inflammatory bowel disease (IBD) is a chronic, gastrointestinal condition that involves a range of debilitating bowel symptoms. Adjustment to living with IBD can be negatively impacted by maladaptive cognitive and behavioural factors (e.g. negative illness representations and repressing emotions). Patient samples also report negative reactions from the general public and such perceptions can further negatively impact people living with IBD. Therefore, we aimed to systematically review literature investigating the illness perceptions, perceived stigmatisation, and negative emotional reactions toward IBD within patient and community samples. We also aimed to review how these factors impact those living with IBD (i.e. adjustment, psychological health). Design: A range of databases (e.g. Psych INFO, PubMed) were searched over two years. One reviewer individually screened titles and abstracts using the specified inclusion criteria, and this process was repeated by a second reviewer. Subsequently, the full text articles were screened and data were extracted for the 82 articles that satisfied the inclusion criteria. Following data extraction, a narrative synthesis was conducted. Results: The review of 82 studies suggested that negative illness perceptions are linked to poorer psychosocial outcomes, that patient samples frequently anticipate stigmatisation, fear relating to bowel accidents was the most common emotion reported, and that the general public direct little enacted stigma towards IBD. Conclusion: For people living with IBD: (i) poorer psychological adjustment was reported by those who held more negative perceptions and reactions toward their illness; and (ii) their concerns regarding public perceptions of IBD warrants further empirical attention. Results emphasise the importance of targeting perceptions, and facilitating education and adaptive responding during treatment.

The functional basis of disgust in disease avoidance is widely accepted; however, there is disagreement over what disgust is. This is a significant problem, as basic questions about disgust require knowing if single/multiple forms/processes exist. We address this issue with a new model with one form of disgust generated by multiple processes: (a) pure disgust experienced during gastrointestinal illness; (b) somatosensory disgust elicited by specific cues that activate the pure disgust state; (c) anticipatory disgust elicited by associations between distance cues for somatosensory disgust and requiring threat evaluation; (d) simulated disgusts elicited by imagining somatosensory and anticipatory disgust and frequently involving other emotions. Different contamination processes interlink (a–d). The implications of our model for fundamental questions about disgust (e.g., emotion status; continuation into animals) are examined.

Drinking sugar-sweetened beverages (SSBs) seems to uniquely contribute to excess weight gain, and several mechanisms have been proposed to account for this. Here we examine a further proposal, namely that explicit wanting and liking for SSBs may be less sensitive to changes in physiological state, when contrasted to equi-palatable solid sweet snacks. Study 1 explored this by having participants rate wanting for (on seeing) and liking of (on tasting) several SSBs and snacks, before and after receiving a solid lunch with ad libitum water. Participant reports of hunger and thirst, obtained at multiple time-points, equally reduced across lunch. Wanting for the snacks decreased significantly more across lunch than liking, but for the SSBs, wanting and liking decreased in parallel. Study 2 engineered a far more dramatic alteration in thirst, by using fluid deprivation, a liquid lunch, and encouraging drinking to satiation. This time, reduction in thirst exceeded reduction in hunger. However, all this served to achieve was an equivalent change across lunch for snacks and SSBs, with wanting reducing more than liking now for both. These findings suggest that changes in wanting, relative to liking, for SSBs, are less sensitive to alterations in physiological state than equi-palatable solid snacks, enhancing the chance of consumption.

Data Summary: The role of disgust in male sexual decision-making; Oaten et al. (2009).