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Phase‐Transitions in Disgust During Self‐Initiated Eating Among Adolescents With Anorexia Nervosa and Related Low‐Weight Eating Disorders and Matched Controls.

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Title: Phase‐Transitions in Disgust During Self‐Initiated Eating Among Adolescents With Anorexia Nervosa and Related Low‐Weight Eating Disorders and Matched Controls.
Authors: Hildebrandt, Tom, Boyar, Allison, Chen, Xi, Holland, Katherine, Silverman, Elena, Webb, Desiree, Wolk, Sophia, Schulz, Kurt, Sysko, Robyn
Source: International Journal of Eating Disorders. Oct2024, Vol. 57 Issue 10, p2088-2097. 10p.
Subjects: Anorexia nervosa complications, Research funding, Structural equation modeling, Eating disorders, Food habits, Facial expression
Abstract: Background: Understanding the emotional context of feeding behavior may help identify causal mechanisms of food avoidance among individuals with anorexia nervosa. Although predominant food avoidance models assume fear of fat drives feeding behavior, disgust may be more theoretically and proximally relevant to moment‐to‐moment experiences of feeding. This study, therefore, aimed to examine affect and food avoidance using automated affect analysis from facial response by measuring time‐specific transitions in disgust during a laboratory eating paradigm. We hypothesized that phase transitions in disgust would distinguish temporally self‐initiated eating from food avoidance. Methods: Sixty‐three adolescents with anorexia nervosa or another low‐weight eating disorder (LWED) and 27 age‐ and sex‐matched controls were recruited as part of a larger study; 45 patients and 22 controls provided data on autonomous eating and facial affect during a laboratory meal. Dynamic structural equation models quantified moment‐to‐moment relationships between disgust and feeding behavior. Results: Self‐initiated eating was associated with greater increases in disgust, but not fear, intensity among those with LWED relative to control participants and greater disgust intensity predicted lower likelihood of self‐initiated eating. Discussion: Phasic transitions in disgust provide moment‐to‐moment evidence of affective influence on self‐initiated eating and lend credibility to the hypothesis that disgust contributes to food avoidance and initiation in individuals with LWED. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Eating Disorders is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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  Data: Phase‐Transitions in Disgust During Self‐Initiated Eating Among Adolescents With Anorexia Nervosa and Related Low‐Weight Eating Disorders and Matched Controls.
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Eating+Disorders%22">International Journal of Eating Disorders</searchLink>. Oct2024, Vol. 57 Issue 10, p2088-2097. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Anorexia+nervosa+complications%22">Anorexia nervosa complications</searchLink><br /><searchLink fieldCode="DE" term="%22Research+funding%22">Research funding</searchLink><br /><searchLink fieldCode="DE" term="%22Structural+equation+modeling%22">Structural equation modeling</searchLink><br /><searchLink fieldCode="DE" term="%22Eating+disorders%22">Eating disorders</searchLink><br /><searchLink fieldCode="DE" term="%22Food+habits%22">Food habits</searchLink><br /><searchLink fieldCode="DE" term="%22Facial+expression%22">Facial expression</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: Background: Understanding the emotional context of feeding behavior may help identify causal mechanisms of food avoidance among individuals with anorexia nervosa. Although predominant food avoidance models assume fear of fat drives feeding behavior, disgust may be more theoretically and proximally relevant to moment‐to‐moment experiences of feeding. This study, therefore, aimed to examine affect and food avoidance using automated affect analysis from facial response by measuring time‐specific transitions in disgust during a laboratory eating paradigm. We hypothesized that phase transitions in disgust would distinguish temporally self‐initiated eating from food avoidance. Methods: Sixty‐three adolescents with anorexia nervosa or another low‐weight eating disorder (LWED) and 27 age‐ and sex‐matched controls were recruited as part of a larger study; 45 patients and 22 controls provided data on autonomous eating and facial affect during a laboratory meal. Dynamic structural equation models quantified moment‐to‐moment relationships between disgust and feeding behavior. Results: Self‐initiated eating was associated with greater increases in disgust, but not fear, intensity among those with LWED relative to control participants and greater disgust intensity predicted lower likelihood of self‐initiated eating. Discussion: Phasic transitions in disgust provide moment‐to‐moment evidence of affective influence on self‐initiated eating and lend credibility to the hypothesis that disgust contributes to food avoidance and initiation in individuals with LWED. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Eating Disorders is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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              Text: Oct2024
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