What can food-image tasks teach us about anorexia nervosa? A systematic review

Abstract A salient feature of anorexia nervosa (AN) is the persistent and severe restriction of food, such that dietary intake is inadequate to maintain a healthy body weight. Experimental tasks and paradigms have used illness-relevant stimuli, namely food images, to study the eating-specific neuroc...

Full description

Bibliographic Details
Main Authors: E. Caitlin Lloyd, Joanna E. Steinglass
Format: Article
Language:English
Published: BMC 2018-11-01
Series:Journal of Eating Disorders
Subjects:
Online Access:http://link.springer.com/article/10.1186/s40337-018-0217-z
_version_ 1797936947043237888
author E. Caitlin Lloyd
Joanna E. Steinglass
author_facet E. Caitlin Lloyd
Joanna E. Steinglass
author_sort E. Caitlin Lloyd
collection DOAJ
description Abstract A salient feature of anorexia nervosa (AN) is the persistent and severe restriction of food, such that dietary intake is inadequate to maintain a healthy body weight. Experimental tasks and paradigms have used illness-relevant stimuli, namely food images, to study the eating-specific neurocognitive mechanisms that promote food avoidance. This systematic review, completed in accordance with PRISMA guidelines, identified and critically evaluated paradigms involving images of food that have been used to study AN. There were 50 eligible studies, published before March 10th 2018, identified from Medline and PsychINFO searches, and reference screening. Studies using food image-based paradigms were categorised into three methodologic approaches: neuropsychology, neurophysiology, and functional magnetic resonance imaging (fMRI). Paradigms were reviewed with a focus on how well they address phenomena central to AN. Across tasks, differences between individuals with AN and healthy peers have been identified, with the most consistent findings in the area of reward processing. Measuring task performance alongside actual eating behaviour, and using experimental manipulations to probe causality, may advance understanding of the mechanisms of illness in AN.
first_indexed 2024-04-10T18:37:11Z
format Article
id doaj.art-2f2fcfdf108040149c3aa3f96bcb82c9
institution Directory Open Access Journal
issn 2050-2974
language English
last_indexed 2024-04-10T18:37:11Z
publishDate 2018-11-01
publisher BMC
record_format Article
series Journal of Eating Disorders
spelling doaj.art-2f2fcfdf108040149c3aa3f96bcb82c92023-02-02T00:28:06ZengBMCJournal of Eating Disorders2050-29742018-11-016111810.1186/s40337-018-0217-zWhat can food-image tasks teach us about anorexia nervosa? A systematic reviewE. Caitlin Lloyd0Joanna E. Steinglass1Centre for Exercise, Nutrition and Health Sciences, School for Policy Studies, University of BristolDepartment of Psychiatry, Columbia University Irving Medical CenterAbstract A salient feature of anorexia nervosa (AN) is the persistent and severe restriction of food, such that dietary intake is inadequate to maintain a healthy body weight. Experimental tasks and paradigms have used illness-relevant stimuli, namely food images, to study the eating-specific neurocognitive mechanisms that promote food avoidance. This systematic review, completed in accordance with PRISMA guidelines, identified and critically evaluated paradigms involving images of food that have been used to study AN. There were 50 eligible studies, published before March 10th 2018, identified from Medline and PsychINFO searches, and reference screening. Studies using food image-based paradigms were categorised into three methodologic approaches: neuropsychology, neurophysiology, and functional magnetic resonance imaging (fMRI). Paradigms were reviewed with a focus on how well they address phenomena central to AN. Across tasks, differences between individuals with AN and healthy peers have been identified, with the most consistent findings in the area of reward processing. Measuring task performance alongside actual eating behaviour, and using experimental manipulations to probe causality, may advance understanding of the mechanisms of illness in AN.http://link.springer.com/article/10.1186/s40337-018-0217-zAnorexia nervosaEating behaviourFood stimuliEating disordersCognitive neurosciencefMRI
spellingShingle E. Caitlin Lloyd
Joanna E. Steinglass
What can food-image tasks teach us about anorexia nervosa? A systematic review
Journal of Eating Disorders
Anorexia nervosa
Eating behaviour
Food stimuli
Eating disorders
Cognitive neuroscience
fMRI
title What can food-image tasks teach us about anorexia nervosa? A systematic review
title_full What can food-image tasks teach us about anorexia nervosa? A systematic review
title_fullStr What can food-image tasks teach us about anorexia nervosa? A systematic review
title_full_unstemmed What can food-image tasks teach us about anorexia nervosa? A systematic review
title_short What can food-image tasks teach us about anorexia nervosa? A systematic review
title_sort what can food image tasks teach us about anorexia nervosa a systematic review
topic Anorexia nervosa
Eating behaviour
Food stimuli
Eating disorders
Cognitive neuroscience
fMRI
url http://link.springer.com/article/10.1186/s40337-018-0217-z
work_keys_str_mv AT ecaitlinlloyd whatcanfoodimagetasksteachusaboutanorexianervosaasystematicreview
AT joannaesteinglass whatcanfoodimagetasksteachusaboutanorexianervosaasystematicreview