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. 2022 Feb 1:169:105834.
doi: 10.1016/j.appet.2021.105834. Epub 2021 Dec 3.

Changes in temporal discounting, hedonic hunger, and food addiction during recovery from substance misuse

Julia C Basso  1 , Medha K Satyal  2 , Liqa Athamneh  3 , Warren K Bickel  4
Affiliations

Changes in temporal discounting, hedonic hunger, and food addiction during recovery from substance misuse

Julia C Basso et al. Appetite. .

Abstract

Substance use disorders (SUDs) and obesity are both chronic, relapsing, remitting disorders that arise from a heightened preference for immediate-focused rewards (i.e., steep temporal discounting). During recovery from SUDs, overweight and obese outcomes are common as individuals may replace drug rewards for food rewards. However, little has been done to investigate the neuropsychological processes underlying food reward and addiction in individuals recovering from SUDs. Using data collected from the International Quit and Recovery Registry and Amazon Mechanical Turk, we aimed to elucidate the factors that influence the attraction to palatable foods in a population in recovery from substance misuse (n = 114) as well as a population with no history of substance misuse (n = 97). We hypothesized that individuals in recovery from substance misuse would have steeper temporal discounting, an increased drive for palatable foods (i.e., hedonic hunger), and greater food addiction symptoms than non-substance users. Contrary to our hypotheses, we found that individuals in recovery from SUDs show improved outcomes in temporal discounting, hedonic hunger, and food addiction symptoms. Moreover, recovery status and temporal discounting significantly predicted these outcomes. Our findings suggest that the enhanced executive control processes needed for successful SUD recovery may transfer to other reward-related processes such as food reward and consumption. Interventions targeted at improving executive function including episodic future thinking, meditation, or exercise, may be excellent ways to support a successful recovery and improve other reward-related processes, including food consumption, to decrease the risk of overweight or obese outcomes during recovery.

Keywords: Abstinence; Eating behavior; Food addiction; Recovery; Substance use; Temporal discounting.

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Figures

Figure 1.
Figure 1.
Between groups comparisons of A) hedonic hunger, B) food addiction symptoms, and C) temporal discounting. Plotted as distributions, means (black dots), and SEM. **p<0.01
Figure 2.
Figure 2.
Pearson correlation coefficients (top), histograms (diagonal), and correlation scatterplots (bottom). Data for days abstinent were collected only in the recovery group (n=114). *p<0.05, **p<0.01, ***p<0.001
See this image and copyright information in PMC

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