Weight suppression in bulimia nervosa: Associations with biology and behavior.

Bodell, Lindsay P.; Keel, Pamela K.

doi:10.1037/abn0000077

Cited by 57 publications

(66 citation statements)

References 83 publications

(142 reference statements)

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“…This idea is consistent with psychobiological theories of WS and BN and with our previous study finding correlations between WS and leptin and the reinforcing value of food (Bodell & Keel, 2015). Although speculative, it is possible that leptin may mediate associations between WS and DT found in the current study.…”

Section: Discussionsupporting

confidence: 93%

“…Several cross-sectional studies have reported significant associations between higher WS and greater frequency of binge eating and purging in individuals with BN (Bodell & Keel, 2015; Butryn, Juarascio, & Lowe, 2011; Lowe, Thomas, Safer, & Buytryn, 2007). Furthermore, longitudinal studies support the role of WS in the maintenance of BN (Butryn, Lowe, Safer, & Agras, 2006; Keel & Heatherton, 2010; Lowe et al, 2011).…”

mentioning

confidence: 99%

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Weight suppression predicts bulimic symptoms at 20-year follow-up: The mediating role of drive for thinness.

Bodell¹,

Brown²,

Keel³

2017

Journal of Abnormal Psychology

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Weight suppression predicts the onset and maintenance of bulimic syndromes. Despite this finding, no study has examined psychological mechanisms contributing to these associations using a longitudinal design. Given societal pressures to be thin and an actual history of higher weight, it is possible that greater weight suppression contributes to increased fear of gaining weight and preoccupation with being thin, which increase vulnerability to eating disorders. The present study investigated whether greater drive for thinness mediates associations between weight suppression and bulimic symptoms over long-term follow-up. Participants were women (n = 1190) and men (n = 509) who completed self-report surveys in college and 10- and 20- years later. Higher weight suppression at baseline predicted higher bulimic symptoms at 20-year follow-up (p < .001), while accounting for demographic variables and baseline bulimic symptoms, body mass index, and drive for thinness. Increased drive for thinness at 10-year follow-up mediated this effect. Findings highlight the long-lasting effect of weight suppression on bulimic symptoms and suggest that preoccupation with thinness may help maintain this association. Future studies would benefit from incorporating other hypothesized consequences of weight suppression, including biological factors, into risk models.

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Section: Discussionsupporting

confidence: 93%

mentioning

confidence: 99%

Weight suppression predicts bulimic symptoms at 20-year follow-up: The mediating role of drive for thinness.

Bodell¹,

Brown²,

Keel³

2017

Journal of Abnormal Psychology

Self Cite

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show abstract

“…These tasks require participants to press a keyboard button an increasing number of times to receive food rewards that they are then asked to consume. One adaptation of this task was used to compare how hard adult women with BN worked for chocolate candies (food reinforcers) relative to controls [68]. Participants could earn 10 candies per trial for 10 total trials.…”

Section: Reward Responsivity Valuation and Learningmentioning

confidence: 99%

“…The progressive ratio task version that requires individuals to immediately consume the candies earned [68] may more closely mimic original progressive ratio tasks used to measure food and drug reinforcement in rodent models, and may measure the reinforcing value of continuing to consume food over time after eating has commenced. The version of the task with delayed consumption [69] more closely resembles human drug studies in which participants sample the drug on the study day and earn tokens to self-administer the drug on the days following the experiment [70].…”

Section: Reward Responsivity Valuation and Learningmentioning

confidence: 99%

Behind binge eating: A review of food-specific adaptations of neurocognitive and neuroimaging tasks

Berner

Winter

Matheson

et al. 2017

Physiology & Behavior

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Recurrent binge eating, or overeating accompanied by a sense of loss of control, is a major public health concern. Identifying similarities and differences among individuals with binge eating and those with other psychiatric symptoms and characterizing the deficits that uniquely predispose individuals to eating problems are essential to improving treatment. Research suggests that altered reward and control-related processes may contribute to dysregulated eating and other impulsive behaviors in binge-eating populations, but the best methods for reliably assessing the contributions of these processes to binge eating are unclear. In this review, we summarize standard neurocognitive and neuroimaging tasks that assess reward and control-related processes, describe adaptations of these tasks used to study eating and food-specific responsivity and deficits, and consider the advantages and limitations of these tasks. Future studies integrating both general and food-specific tasks with neuroimaging will improve understanding of the neurocognitive processes and neural circuits that contribute to binge eating and could inform novel interventions that more directly target or prevent this transdiagnostic behavior.

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“…The field of behavioral economics provides methods by which to measure the motivation to engage in behaviors like smoking (Epstein, Bulik, Perkins, Caggiula, & Rodefer, 1991), drug use (Comer et al, 1998), physical activity (Schebendach, Klein, Foltin, Devlin, & Walsh, 2007); (Saelens & Epstein, 1999), and eating (Bodell & Keel, 2015; Epstein & Leddy, 2006; Epstein, Leddy, Temple, & Faith, 2007; Haynos, Hill, & Fruzzetti, 2016; Schebendach, Broft, Foltin, & Walsh, 2013) in a laboratory setting. In general, these laboratory paradigms quantify motivation in terms of the amount of “work” an individual is willing to expend to gain access to a specific a substance or behavior, often referred to as a reinforcer (Hodos, 1961).…”

Section: Introductionmentioning

confidence: 99%

Assessment of the motivation to use artificial sweetener among individuals with an eating disorder

et al. 2017

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Eating disorders are associated with a range of abnormalities in eating behavior. Some individuals consume large amounts of non-caloric artificial sweeteners, suggesting abnormalities in appetitive responding. The current study aimed to quantify hedonic and motivating effects of artificial sweetener in individuals with and without an eating disorder. Two laboratory studies were conducted. Hedonic preference was estimated using the number of artificial sweetener packets (0 to 10) added to unsweetened cherry flavored Kool-Aid (study 1). Motivation to obtain sweetener was assessed by a progressive ratio (PR) work task (study 2). Ninety-three participants (25 anorexia nervosa restricting type (AN-R), 23 AN binge/purge type (AN-B/P), 20 bulimia nervosa (BN), and 25 normal controls (NC)) completed the study. No significant difference in hedonic preference was found among participant groups. Work completed at the PR task ranged from 0 to 9500 key-board presses. The AN-B/P group had a significantly higher breakpoint and performed significantly more work for sweetener compared to the BN and NC groups. Among AN-B/P and AN-R participants, the preferred number of Equal packets was significantly correlated with the breakpoint and total work. The increased amount of work for sweetener among individuals with AN-B/P supports an enhanced reward value of sweet taste in this population, and suggests that the characteristic food avoidance in AN cannot be accounted for by decreased reward value of all taste-related stimuli. This study also supports the novel application of a PR ratio task to quantify the motivating effect of sweet taste among individuals with an eating disorder.

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Weight suppression in bulimia nervosa: Associations with biology and behavior.

Cited by 57 publications

References 83 publications

Weight suppression predicts bulimic symptoms at 20-year follow-up: The mediating role of drive for thinness.

Weight suppression predicts bulimic symptoms at 20-year follow-up: The mediating role of drive for thinness.

Behind binge eating: A review of food-specific adaptations of neurocognitive and neuroimaging tasks

Assessment of the motivation to use artificial sweetener among individuals with an eating disorder

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