A. Brytek-Matera, Poland
University of Wroclaw Institute of PsychologyPresenter of 3 Presentations
O122 - Not Everyone is the Same: Latent Profile Analysis of Food Addiction, Personality Traits and Loneliness Among Young Adults
ABSTRACT
Introduction
Introduction: Food addiction (FA) has been found to correlate with personality traits and psychosocial factors (Zhao et al., 2018). However, the vast majority of studies on this subject use the variable-oriented approach, which assumes that relationships between specific variables are identical in a given population (Collins & Lanza, 2010).
Objectives
Objectives: The main aim of this study was to assess the heterogeneity of young adults with respect to food addiction, personality traits (extraversion, conscientiousness and emotional stability) and loneliness. The secondary aim was to examine the relationships between profile membership and well-being.
Methods
Methods: The sample consisted of 1,157 young adults (58.1% women). The Yale Food Addiction Scale, the Ten-Item Personality Inventory and the Short Loneliness Scale were used in the present study. Various aspects of well-being were included (e.g. quality of life). Latent Profile Analysis was performed twice: in the full sample, and in the subsample of individuals with increased FA (defined as z-score ≥ 1; n = 213).
Results
Results: Four profiles were identified both in the full sample and in the subsample. The best functioning was observed in individuals who scored high on extraversion and low on loneliness, despite their relatively high levels of FA. Young adults who scored high on FA and loneliness, and low on extraversion, conscientiousness and emotional stability, were more likely to have the worst functioning.
Conclusions
Conclusions: Our findings suggest that using the person-oriented approach may expand our knowledge on the role of personality traits and psychosocial factors in determining the effects of FA on well-being.
O125 - Negative affect, affect regulation, and food choice: A value-based decision-making analysis
ABSTRACT
Introduction
Research has shown that negative affect leads to unhealthy eating, the top cause of death in the United States.
Objectives
This project examined whether AR (Affect Regulation) can be applied to incidental negative affect to improve eating behavior.
Methods
We conducted four studies.
Results
In Studies 1 and 2 (n=80), we developed a autobiographical negative affect induction, showed that it induces negative affect, and demonstrated that participants can learn to downregulate this negative affect. In Study 3 (n=40), participants completed a three-phase dietary food choice task. In phase 1, participants made food choices under neutral conditions. In phase 2, participants made food choices after receiving the negative affect induction from Studies 1 and 2. In phase 3, participants made food choices while downregulating the negative affect caused by the induction. In phase 2, participants placed less importance on health (b=-0.15, z=-5.99, p<.001) when making food choices than under neutral conditions (phase 1). In phase 3, participants successfully downregulated their negative affect (b=-1.2, t=-22.01, p<.001) and placed the same level of importance on health when making food choices as in phase 1, indicating that AR applied to incidental affect is an effective method for improving eating behavior. In Study 4 (n=120), we pre-registered and replicated our findings from Study 3. In addition, we fit drift-diffusion models to participants reaction time data and show that these results extent to the by-participant weights participants place on health when making food choices.
Conclusions
These results are a step towards scalable AR interventions to improve eating behavior.
O310 - Restraint theory: significance of rumination
ABSTRACT
Introduction
Restraint theory (Herman and Polivy, 1975) suggests that human eating behaviour is under cognitive control and this leads to reduced sensitivity to internal cues for satiety, resulting in overeating in situations where cognitive control is under-mined (Johnson et al., 2012). In other words, restraint theory suggests that restraint (dieting) actually leads to leads to an excessive intake of food.
Objectives
The present study sought to investigate the relationship between dieting, eating behaviours (uncontrolled eating, emotional eating, cognitive restraint) and rumination (repetitive negative thinking). The second objective was to determine whether rumination mediates the relationship between dieting and both uncontrolled eating and emotional eating.
Methods
The sample was composed of 188 women (Mage = 29.46 ± 8.94; MBMI = 23.16 ± 4.04). The Eating Attitudes Test, the Three-Factor Eating Questionnaire and the Perseverative Thinking Questionnaire were used in the present study.
Results
Dieting for weight control (intentional weight loss) was associated with higher levels of uncontrolled eating, emotional eating, cognitive restraint and repetitive negative thinking. Mediation analyses showed that the relationship between dieting and inappropriate eating behaviours was mediated by rumination. The direct effect of dieting on both uncontrolled eating and emotional eating was significant, suggesting partial mediation.
Conclusions
Our findings support the relevance of rumination in linking dieting and eating behaviours among women. The current study may have clinical applications such as the potential integration of rumination for the prevention and changes in inappropriate eating behaviours.