Exploration of interoceptive capabilities in avoidant/restrictive food intake disorder and anorexia nervosa

Abstract Objective This proof-of-concept study explores the role of aberrant interoception as a possible mechanism underlying restrictive eating symptoms in avoidant/restrictive food intake disorder (ARFID) compared to anorexia nervosa (AN) and healthy comparisons (HC). Method We report preliminary...

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Main Authors: Nandini Datta, James D. Lock
Format: Article
Language:English
Published: BMC 2023-10-01
Series:Journal of Eating Disorders
Subjects:
Online Access:https://doi.org/10.1186/s40337-023-00914-9
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author Nandini Datta
James D. Lock
author_facet Nandini Datta
James D. Lock
author_sort Nandini Datta
collection DOAJ
description Abstract Objective This proof-of-concept study explores the role of aberrant interoception as a possible mechanism underlying restrictive eating symptoms in avoidant/restrictive food intake disorder (ARFID) compared to anorexia nervosa (AN) and healthy comparisons (HC). Method We report preliminary normative adolescent interoceptive data in HCs (n = 100) compared to adolescents with ARFID (n = 30) and AN (N = 23). Adolescents (12–18) participated in a one-time virtual visit to assess heartrate guessing accuracy (interoceptive accuracy), correlation between confidence in heartrate guess and accuracy (interoceptive awareness), and self-reported interoception (interoceptive sensibility). Results HC adolescents had comparable interoceptive outcomes relative to published adult norms, consistent with existing literature. Data suggest that adolescents with ARFID have poor heartbeat guessing accuracy and experience challenges deciphering interoceptive signals, possibly contributing to symptoms. While adolescents with AN have greater heartbeat guessing accuracy, they cite difficulty trusting body cues, perhaps contributing to their lack of confidence in interoceptive cue detection. Conclusions Preliminary results reflect differences in interoception between the three groups.
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spelling doaj.art-dbf0aac442964bd58f7c71f1755d9b332023-11-19T12:07:51ZengBMCJournal of Eating Disorders2050-29742023-10-0111111010.1186/s40337-023-00914-9Exploration of interoceptive capabilities in avoidant/restrictive food intake disorder and anorexia nervosaNandini Datta0James D. Lock1Department of Psychiatry and Behavioral Sciences, Stanford University School of MedicineDepartment of Psychiatry and Behavioral Sciences, Stanford University School of MedicineAbstract Objective This proof-of-concept study explores the role of aberrant interoception as a possible mechanism underlying restrictive eating symptoms in avoidant/restrictive food intake disorder (ARFID) compared to anorexia nervosa (AN) and healthy comparisons (HC). Method We report preliminary normative adolescent interoceptive data in HCs (n = 100) compared to adolescents with ARFID (n = 30) and AN (N = 23). Adolescents (12–18) participated in a one-time virtual visit to assess heartrate guessing accuracy (interoceptive accuracy), correlation between confidence in heartrate guess and accuracy (interoceptive awareness), and self-reported interoception (interoceptive sensibility). Results HC adolescents had comparable interoceptive outcomes relative to published adult norms, consistent with existing literature. Data suggest that adolescents with ARFID have poor heartbeat guessing accuracy and experience challenges deciphering interoceptive signals, possibly contributing to symptoms. While adolescents with AN have greater heartbeat guessing accuracy, they cite difficulty trusting body cues, perhaps contributing to their lack of confidence in interoceptive cue detection. Conclusions Preliminary results reflect differences in interoception between the three groups.https://doi.org/10.1186/s40337-023-00914-9InteroceptionAdolescentARFIDAnorexia nervosa
spellingShingle Nandini Datta
James D. Lock
Exploration of interoceptive capabilities in avoidant/restrictive food intake disorder and anorexia nervosa
Journal of Eating Disorders
Interoception
Adolescent
ARFID
Anorexia nervosa
title Exploration of interoceptive capabilities in avoidant/restrictive food intake disorder and anorexia nervosa
title_full Exploration of interoceptive capabilities in avoidant/restrictive food intake disorder and anorexia nervosa
title_fullStr Exploration of interoceptive capabilities in avoidant/restrictive food intake disorder and anorexia nervosa
title_full_unstemmed Exploration of interoceptive capabilities in avoidant/restrictive food intake disorder and anorexia nervosa
title_short Exploration of interoceptive capabilities in avoidant/restrictive food intake disorder and anorexia nervosa
title_sort exploration of interoceptive capabilities in avoidant restrictive food intake disorder and anorexia nervosa
topic Interoception
Adolescent
ARFID
Anorexia nervosa
url https://doi.org/10.1186/s40337-023-00914-9
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