Anhedonia in eating disorders: A meta‐analysis and systematic review. Issue 2 (22nd November 2021)
- Record Type:
- Journal Article
- Title:
- Anhedonia in eating disorders: A meta‐analysis and systematic review. Issue 2 (22nd November 2021)
- Main Title:
- Anhedonia in eating disorders: A meta‐analysis and systematic review
- Authors:
- Dolan, Sarah C.
Khindri, Ruchika
Franko, Debra L.
Thomas, Jennifer J.
Reilly, Erin E.
Eddy, Kamryn T. - Abstract:
- Abstract: Objective: Anhedonia, or loss of pleasure, is related to deficits in reward processing across a variety of psychiatric disorders. In light of research suggesting abnormal reward processing in eating disorders (EDs), the study of anhedonia in EDs may yield important insights into the role of reward in eating pathology. This meta‐analysis and review aimed to provide both a quantitative and qualitative synthesis of the existing literature on this topic. Method: We conducted this research (or these meta‐analyses) according to PRISMA guidelines. We searched four databases for both peer‐reviewed and unpublished literature, and included studies only if a self‐report or clinical interview measure of anhedonia was administered to a sample with an ED diagnosis. Results: We included 21 studies in the systematic review, and 10 studies in two meta‐analyses that compared anhedonia between ED and control samples ( n = 9 studies) and within different ED diagnoses ( n = 5 studies). Meta‐analyses revealed that anhedonia was significantly higher in ED groups compared to healthy controls, but there was no significant difference in anhedonia between ED diagnostic groups. A qualitative review of the literature also suggested that anhedonia may be correlated with increased ED symptom severity. Discussion: Findings indicated that anhedonia is elevated in EDs and may be a relevant treatment target. Future research should examine how self‐reported anhedonia may correlate with componentsAbstract: Objective: Anhedonia, or loss of pleasure, is related to deficits in reward processing across a variety of psychiatric disorders. In light of research suggesting abnormal reward processing in eating disorders (EDs), the study of anhedonia in EDs may yield important insights into the role of reward in eating pathology. This meta‐analysis and review aimed to provide both a quantitative and qualitative synthesis of the existing literature on this topic. Method: We conducted this research (or these meta‐analyses) according to PRISMA guidelines. We searched four databases for both peer‐reviewed and unpublished literature, and included studies only if a self‐report or clinical interview measure of anhedonia was administered to a sample with an ED diagnosis. Results: We included 21 studies in the systematic review, and 10 studies in two meta‐analyses that compared anhedonia between ED and control samples ( n = 9 studies) and within different ED diagnoses ( n = 5 studies). Meta‐analyses revealed that anhedonia was significantly higher in ED groups compared to healthy controls, but there was no significant difference in anhedonia between ED diagnostic groups. A qualitative review of the literature also suggested that anhedonia may be correlated with increased ED symptom severity. Discussion: Findings indicated that anhedonia is elevated in EDs and may be a relevant treatment target. Future research should examine how self‐reported anhedonia may correlate with components of reward processing in EDs in order to improve theoretical models as well as targeted interventions. Resumen: Objetivo: La anhedonia, o pérdida de placer, está relacionada con déficits en el procesamiento de recompensas en una variedad de trastornos psiquiátricos. A la luz de la investigación que sugiere una anormalidad en el proceso de la recompensa en los trastornos de la conducta alimentaria (TCA), el estudio de la anhedonia en los TCA puede producir información importante sobre el papel de la recompensa en la patología alimentaria. Este metanálisis y revisión tuvo como objetivo proporcionar una síntesis cuantitativa y cualitativa de la literatura existente sobre este tema. Método: Se realizó esta investigación (o estos metanálisis) de acuerdo con las guías PRISMA. Se realizaron búsquedas en cuatro bases de datos de literatura revisada por pares y no publicada, y se incluyeron estudios solo si se administró una medida de anhedonia en el autoreporte o en una entrevista clínica a una muestra con un diagnóstico de TCA. Resultados: Se incluyeron 21 estudios en la revisión sistemática y 10 estudios en dos metanálisis que compararon la anhedonia entre TCA y las muestras de control ( n = 9 estudios) y dentro de diferentes diagnósticos de TCA ( n = 5 estudios). Los metanálisis revelaron que la anhedonia fue significativamente mayor en los grupos de TCA en comparación con los controles sanos, pero no hubo diferencias significativas en la anhedonia entre los grupos de diagnóstico de TCA. Una revisión cualitativa de la literatura también sugirió que la anhedonia puede estar correlacionada con una mayor gravedad de los síntomas de TCA. Discusión: Los hallazgos indicaron que la anhedonia está elevada en los TCA y puede ser un objetivo de tratamiento relevante. La investigación futura debe examinar cómo la anhedonia autoreportada puede correlacionarse con los componentes del procesamiento de recompensas en los TCA para mejorar los modelos teóricos, así como las intervenciones dirigidas. … (more)
- Is Part Of:
- International journal of eating disorders. Volume 55:Issue 2(2022)
- Journal:
- International journal of eating disorders
- Issue:
- Volume 55:Issue 2(2022)
- Issue Display:
- Volume 55, Issue 2 (2022)
- Year:
- 2022
- Volume:
- 55
- Issue:
- 2
- Issue Sort Value:
- 2022-0055-0002-0000
- Page Start:
- 161
- Page End:
- 175
- Publication Date:
- 2021-11-22
- Subjects:
- anhedonia -- anorexia nervosa -- bulimia nervosa -- depression -- feeding and eating disorders -- meta‐analysis -- positive affect -- reward processing -- systematic review
Appetite disorders -- Periodicals
Ingestion disorders -- Periodicals
Eating disorders -- Periodicals
616.8526 - Journal URLs:
- http://onlinelibrary.wiley.com/journal/10.1002/(ISSN)1098-108X ↗
http://onlinelibrary.wiley.com/ ↗ - DOI:
- 10.1002/eat.23645 ↗
- Languages:
- English
- ISSNs:
- 0276-3478
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 4542.195500
British Library DSC - BLDSS-3PM
British Library HMNTS - ELD Digital store - Ingest File:
- 20779.xml