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Lowe CJ, Bodell LP. Examining neural responses to anticipating or receiving monetary rewards and the development of binge eating in youth. A registered report using data from the Adolescent Brain Cognitive Development (ABCD) study. Dev Cogn Neurosci 2024; 67:101377. [PMID: 38615556 PMCID: PMC11026734 DOI: 10.1016/j.dcn.2024.101377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 04/05/2024] [Accepted: 04/07/2024] [Indexed: 04/16/2024] Open
Abstract
Binge eating is characterized as eating a large amount of food and feeling a loss of control while eating. However, the neurobiological mechanisms associated with the onset and maintenance of binge eating are largely unknown. Recent neuroimaging work has suggested that increased responsivity within reward regions of the brain to the anticipation or receipt of rewards is related to binge eating; however, limited longitudinal data has precluded understanding of the role of reward responsivity in the development of binge eating. The current study used data from the Adolescent Brain and Cognitive Development® (ABCD) longitudinal study dataset to assess whether heightened neural responses to different phases of reward processing (reward anticipation and receipt) (1) differentiated individuals with binge eating from matched controls, and (2) predicted the onset of binge eating in an "at risk" sample. Consistent with hypotheses, heightened neural responsivity in the right caudate and bilateral VS during reward anticipation differentiated youth with and without binge eating. Moreover, greater VS response to reward anticipation predicted binge eating two years later. Neural responses to reward receipt also were consistent with hypotheses, such that heightened VS and OFC responses differentiated youth with and without binge eating and predicted the presence of binge eating two years later. Findings from the current study suggest that hypersensitivity to rewards may contribute to the development of binge eating during early adolescence.
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Affiliation(s)
- Cassandra J Lowe
- Department of Psychology, University of Western Ontario, London, ON, Canada; Department of Psychology, University of Exeter, Exeter, UK
| | - Lindsay P Bodell
- Department of Psychology, University of Western Ontario, London, ON, Canada.
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Tose K, Takamura T, Isobe M, Hirano Y, Sato Y, Kodama N, Yoshihara K, Maikusa N, Moriguchi Y, Noda T, Mishima R, Kawabata M, Noma S, Takakura S, Gondo M, Kakeda S, Takahashi M, Ide S, Adachi H, Hamatani S, Kamashita R, Sudo Y, Matsumoto K, Nakazato M, Numata N, Hamamoto Y, Shoji T, Muratsubaki T, Sugiura M, Murai T, Fukudo S, Sekiguchi A. Systematic reduction of gray matter volume in anorexia nervosa, but relative enlargement with clinical symptoms in the prefrontal and posterior insular cortices: a multicenter neuroimaging study. Mol Psychiatry 2024; 29:891-901. [PMID: 38246936 PMCID: PMC11176065 DOI: 10.1038/s41380-023-02378-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 12/04/2023] [Accepted: 12/13/2023] [Indexed: 01/23/2024]
Abstract
Although brain morphological abnormalities have been reported in anorexia nervosa (AN), the reliability and reproducibility of previous studies were limited due to insufficient sample sizes, which prevented exploratory analysis of the whole brain as opposed to regions of interest (ROIs). Objective was to identify brain morphological abnormalities in AN and the association with severity of AN by brain structural magnetic resonance imaging (MRI) in a multicenter study, and to conduct exploratory analysis of the whole brain. Here, we conducted a cross-sectional multicenter study using T1-weighted imaging (T1WI) data collected between May 2014 and February 2019 in Japan. We analyzed MRI data from 103 female AN patients (58 anorexia nervosa restricting type [ANR] and 45 anorexia nervosa binge-purging type [ANBP]) and 102 age-matched female healthy controls (HC). MRI data from five centers were preprocessed using the latest harmonization method to correct for intercenter differences. Gray matter volume (GMV) was calculated from T1WI data of all participants. Of the 205 participants, we obtained severity of eating disorder symptom scores from 179 participants, including 87 in the AN group (51 ANR, 36 ANBP) and 92 HC using the Eating Disorder Examination Questionnaire (EDE-Q) 6.0. GMV reduction were observed in the AN brain, including the bilateral cerebellum, middle and posterior cingulate gyrus, supplementary motor cortex, precentral gyrus medial segment, and thalamus. In addition, the orbitofrontal cortex (OFC), ventromedial prefrontal cortex (vmPFC), rostral anterior cingulate cortex (ACC), and posterior insula volumes showed positive correlations with severity of symptoms. This multicenter study was conducted with a large sample size to identify brain morphological abnormalities in AN. The findings provide a better understanding of the pathogenesis of AN and have potential for the development of brain imaging biomarkers of AN. Trial Registration: UMIN000017456. https://center6.umin.ac.jp/cgi-open-bin/icdr/ctr_view.cgi?recptno=R000019303 .
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Affiliation(s)
- Keima Tose
- Department of Psychiatry, Graduate School of Medicine, Kyoto University Hospital, Kyoto, Japan
| | - Tsunehiko Takamura
- Department of Behavioral Medicine, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Masanori Isobe
- Department of Psychiatry, Graduate School of Medicine, Kyoto University Hospital, Kyoto, Japan
| | - Yoshiyuki Hirano
- Research Center for Child Mental Development, Chiba University, Chiba, Japan
- United Graduate School of Child Development, Osaka University, Kanazawa University, Hamamatsu University School of Medicine, Chiba University and University of Fukui, Suita, Japan
| | - Yasuhiro Sato
- Department of Psychosomatic Medicine, Tohoku University Hospital, Sendai, Japan
| | - Naoki Kodama
- Division of Psychosomatic Medicine, Department of Neurology, University of Occupational and Environment Health, Kitakyushu, Japan
| | - Kazufumi Yoshihara
- Department of Psychosomatic Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Norihide Maikusa
- Center for Evolutionary Cognitive Sciences, Graduate School of Art and Sciences, The University of Tokyo, Tokyo, Japan
| | - Yoshiya Moriguchi
- Department of Behavioral Medicine, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Tomomi Noda
- Department of Psychiatry, Graduate School of Medicine, Kyoto University Hospital, Kyoto, Japan
| | - Ryo Mishima
- Department of Psychiatry, Graduate School of Medicine, Kyoto University Hospital, Kyoto, Japan
| | - Michiko Kawabata
- Department of Psychiatry, Graduate School of Medicine, Kyoto University Hospital, Kyoto, Japan
| | - Shun'ichi Noma
- Department of Psychiatry, Graduate School of Medicine, Kyoto University Hospital, Kyoto, Japan
- Nomakokoro Clinic, Kyoto, Japan
| | - Shu Takakura
- Department of Psychosomatic Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Motoharu Gondo
- Department of Psychosomatic Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - Shingo Kakeda
- Department of Radiology, Hirosaki University Graduate School of Medicine, Aomori, Japan
| | - Masatoshi Takahashi
- Division of Psychosomatic Medicine, Department of Neurology, University of Occupational and Environment Health, Kitakyushu, Japan
| | - Satoru Ide
- Department of Radiology, University of Occupational and Environmental Health, School of Medicine, Kitakyushu, Japan
| | - Hiroaki Adachi
- Department of Neurology, University of Occupational and Environmental Health School of Medicine, Kitakyushu, Japan
| | - Sayo Hamatani
- Research Center for Child Mental Development, Chiba University, Chiba, Japan
- United Graduate School of Child Development, Osaka University, Kanazawa University, Hamamatsu University School of Medicine, Chiba University and University of Fukui, Suita, Japan
- Research Center for Child Mental Development, University of Fukui, Fukui, Japan
| | - Rio Kamashita
- Research Center for Child Mental Development, Chiba University, Chiba, Japan
- United Graduate School of Child Development, Osaka University, Kanazawa University, Hamamatsu University School of Medicine, Chiba University and University of Fukui, Suita, Japan
| | - Yusuke Sudo
- Research Center for Child Mental Development, Chiba University, Chiba, Japan
| | - Koji Matsumoto
- Department of Radiology, Chiba University Hospital, Chiba, Japan
| | - Michiko Nakazato
- Department of Psychiatry, International University of Health and Welfare, School of Medicine, Narita, Japan
| | - Noriko Numata
- United Graduate School of Child Development, Osaka University, Kanazawa University, Hamamatsu University School of Medicine, Chiba University and University of Fukui, Suita, Japan
- Department of Cognitive Behavioral Physiology, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yumi Hamamoto
- Department of Psychology, Northumbria University, Newcastle-upon-Tyne, United Kingdom
- Department of Human Brain Science, Institute of Development, Aging, and Cancer, Tohoku University, Sendai, Japan
| | - Tomotaka Shoji
- Department of Psychosomatic Medicine, Tohoku University Hospital, Sendai, Japan
- Department of Internal Medicine, Nagamachi Hospital, Sendai, Japan
- Department of Psychosomatic Medicine, Tohoku University School of Medicine, Sendai, Japan
| | - Tomohiko Muratsubaki
- Department of Psychosomatic Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Motoaki Sugiura
- Department of Human Brain Science, Institute of Development, Aging, and Cancer, Tohoku University, Sendai, Japan
- Cognitive Sciences Lab, International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
| | - Toshiya Murai
- Department of Psychiatry, Graduate School of Medicine, Kyoto University Hospital, Kyoto, Japan
| | - Shin Fukudo
- Department of Psychosomatic Medicine, Tohoku University Hospital, Sendai, Japan
- Department of Psychosomatic Medicine, Tohoku University Graduate School of Medicine, Sendai, Japan
| | - Atsushi Sekiguchi
- Department of Behavioral Medicine, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan.
- Center for Eating Disorder Research and Information, National Center of Neurology and Psychiatry, Tokyo, Japan.
- Department of Advanced Neuroimaging, Integrative Brain Imaging Center, National Center of Neurology and Psychiatry, Tokyo, Japan.
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Alzaid H, Simon JJ, Brugnara G, Vollmuth P, Bendszus M, Friederich HC. Hypothalamic subregion alterations in anorexia nervosa and obesity: Association with appetite-regulating hormone levels. Int J Eat Disord 2024; 57:581-592. [PMID: 38243035 DOI: 10.1002/eat.24137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Revised: 12/25/2023] [Accepted: 12/27/2023] [Indexed: 01/21/2024]
Abstract
OBJECTIVE Anorexia nervosa (AN) and obesity are weight-related disorders with imbalances in energy homeostasis that may be due to hormonal dysregulation. Given the importance of the hypothalamus in hormonal regulation, we aimed to identify morphometric alterations to hypothalamic subregions linked to these conditions and their connection to appetite-regulating hormones. METHODS Structural magnetic resonance imaging (MRI) was obtained from 78 patients with AN, 27 individuals with obesity and 100 normal-weight healthy controls. Leptin, ghrelin, and insulin blood levels were measured in a subsample of each group. An automated segmentation method was used to segment the hypothalamus and its subregions. Volumes of the hypothalamus and its subregions were compared between groups, and correlational analysis was employed to assess the relationship between morphometric measurements and appetite-regulating hormone levels. RESULTS While accounting for total brain volume, patients with AN displayed a smaller volume in the inferior-tubular subregion (ITS). Conversely, obesity was associated with a larger volume in the anterior-superior, ITS, posterior subregions (PS), and entire hypothalamus. There were no significant volumetric differences between AN subtypes. Leptin correlated positively with PS volume, whereas ghrelin correlated negatively with the whole hypothalamus volume in the entire cohort. However, appetite-regulating hormone levels did not mediate the effects of body mass index on volumetric measures. CONCLUSION Our results indicate the importance of regional structural hypothalamic alterations in AN and obesity, extending beyond global changes to brain volume. Furthermore, these alterations may be linked to changes in hormonal appetite regulation. However, given the small sample size in our correlation analysis, further analyses in a larger sample size are warranted. PUBLIC SIGNIFICANCE Using an automated segmentation method to investigate morphometric alterations of hypothalamic subregions in AN and obesity, this study provides valuable insights into the complex interplay between hypothalamic alterations, hormonal appetite regulation, and body weight, highlighting the need for further research to uncover underlying mechanisms.
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Affiliation(s)
- Haidar Alzaid
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Joe J Simon
- Department of General Internal Medicine and Psychosomatics, University Hospital Heidelberg, Heidelberg, Germany
| | - Gianluca Brugnara
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Philipp Vollmuth
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Martin Bendszus
- Department of Neuroradiology, Heidelberg University Hospital, Heidelberg, Germany
| | - Hans-Christoph Friederich
- Department of General Internal Medicine and Psychosomatics, University Hospital Heidelberg, Heidelberg, Germany
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Chmiel J, Gladka A, Leszek J. The Effect of Transcranial Direct Current Stimulation (tDCS) on Anorexia Nervosa: A Narrative Review. Nutrients 2023; 15:4455. [PMID: 37892530 PMCID: PMC10610104 DOI: 10.3390/nu15204455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Revised: 10/17/2023] [Accepted: 10/18/2023] [Indexed: 10/29/2023] Open
Abstract
(1) Introduction: Anorexia nervosa (AN) is a severe, debilitating disease with high incidence and high mortality. The methods of treatment used so far are moderately effective. Evidence from neuroimaging studies helps to design modern methods of therapy. One of them is transcranial direct current stimulation (tDCS), a non-invasive brain neuromodulation technique. (2) Methods: The purpose of this narrative review is to bring together all studies investigating the use of tDCS in the treatment of AN and to evaluate its effect and efficiency. Searches were conducted in the Pubmed/Medline, Research Gate, and Cochrane databases. (3) Results: The literature search resulted in five articles. These studies provide preliminary evidence that tDCS has the potential to alter eating behaviour, body weight, and food intake. Additionally, tDCS reduced symptoms of depression. Throughout all trials, stimulation targeted the left dorsolateral prefrontal cortex (DLPFC). Although the number of studies included is limited, attempts were made to elucidate the potential mechanisms underlying tDCS action in individuals with AN. Recommendations for future tDCS research in AN were issued. (4) Conclusions: The included studies have shown that tDCS stimulation of the left DLPFC has a positive effect on AN clinical symptoms and may improve them, as measured by various assessment measures. It is important to conduct more in-depth research on the potential benefits of using tDCS for treating AN. This should entail well-designed studies incorporating advanced neuroimaging techniques, such as fMRI. The aim is to gain a better understanding of how tDCS works in AN.
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Affiliation(s)
- James Chmiel
- Institute of Neurofeedback and tDCS Poland, 70-393 Szczecin, Poland
| | - Anna Gladka
- Department and Clinic of Psychiatry, Wrocław Medical University, 54-235 Wrocław, Poland
| | - Jerzy Leszek
- Department and Clinic of Psychiatry, Wrocław Medical University, 54-235 Wrocław, Poland
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Xiao M, Luo Y, Zeng W, Chen H. Support from a Best Friend Makes People Eat Less under Stress: Evidence from Two Experiments. Nutrients 2023; 15:3898. [PMID: 37764682 PMCID: PMC10537042 DOI: 10.3390/nu15183898] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 08/28/2023] [Accepted: 09/04/2023] [Indexed: 09/29/2023] Open
Abstract
When experiencing acute stress, individuals often turn to eating for comfort, as it provides a sense of satiety and satisfaction that can temporarily alleviate the stressful condition. However, this may increase the risk of obesity, diabetes, cardiovascular disease. In this study, we conducted two behavioral experiments to investigate the effectiveness of social support in reducing stress-induced overeating and the mediative role of negative affect and self-efficacy (Experiment 1), as well as the role of reward sensitivity (Experiment 2). Acute stress was induced using a speech preparation task and then participants were asked to regulate their emotions and cognition, either alone or with the help of pictures and supportive sentences provided by a best friend or stranger. Participants in Experiment 1 then completed the food choice task, and participants in Experiment 2 completed the food incentive delay task and the bogus tasting task. The results of both experiments consistently showed that participants who received support from their friends reported lower levels of perceived stress, chose fewer food portions, and consumed fewer snacks during acute stress, compared to the other three groups. Further mediation analysis using the process macro revealed that the differential influence of social support on the choice of high-calorie foods was due to decreased negative affect and increased self-efficacy. This study provides valuable insights for the development of therapeutic interventions for clinical eating disorders.
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Affiliation(s)
- Mingyue Xiao
- Key Laboratory of Cognition and Personality, Ministry of Education, Faculty of Psychology, Southwest University, Tiansheng Road No. 2, Beibei District, Chongqing 400715, China
- Research Center of Psychology and Social Development, Faculty of Psychology, Southwest University, Tiansheng Road No. 2, Beibei District, Chongqing 400715, China
| | - Yijun Luo
- Key Laboratory of Cognition and Personality, Ministry of Education, Faculty of Psychology, Southwest University, Tiansheng Road No. 2, Beibei District, Chongqing 400715, China
- Research Center of Psychology and Social Development, Faculty of Psychology, Southwest University, Tiansheng Road No. 2, Beibei District, Chongqing 400715, China
| | - Weiyu Zeng
- Key Laboratory of Cognition and Personality, Ministry of Education, Faculty of Psychology, Southwest University, Tiansheng Road No. 2, Beibei District, Chongqing 400715, China
- Research Center of Psychology and Social Development, Faculty of Psychology, Southwest University, Tiansheng Road No. 2, Beibei District, Chongqing 400715, China
| | - Hong Chen
- Key Laboratory of Cognition and Personality, Ministry of Education, Faculty of Psychology, Southwest University, Tiansheng Road No. 2, Beibei District, Chongqing 400715, China
- Research Center of Psychology and Social Development, Faculty of Psychology, Southwest University, Tiansheng Road No. 2, Beibei District, Chongqing 400715, China
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Oudijn MS, Linders JTW, Lok A, Schuurman PR, van den Munckhof P, van Elburg AA, van Wingen GA, Mocking RJT, Denys D. Neural effects of deep brain stimulation on reward and loss anticipation and food viewing in anorexia nervosa: a pilot study. J Eat Disord 2023; 11:140. [PMID: 37605212 PMCID: PMC10440869 DOI: 10.1186/s40337-023-00863-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Accepted: 08/08/2023] [Indexed: 08/23/2023] Open
Abstract
BACKGROUND Anorexia nervosa (AN) is a severe and life-threatening psychiatric disorder. Initial studies on deep brain stimulation (DBS) in severe, treatment-refractory AN have shown clinical effects. However, the working mechanisms of DBS in AN remain largely unknown. Here, we used a task-based functional MRI approach to understand the pathophysiology of AN. METHODS We performed functional MRI on four AN patients that participated in a pilot study on the efficacy, safety, and functional effects of DBS targeted at the ventral limb of the capsula interna (vALIC). The patients and six gender-matched healthy controls (HC) were investigated at three different time points. We used an adapted version of the monetary incentive delay task to probe generic reward processing in patients and controls, and a food-specific task in patients only. RESULTS At baseline, no significant differences for reward anticipation were found between AN and HC. Significant group (AN and HC) by time (pre- and post-DBS) interactions were found in the right precuneus, right putamen, right ventral and medial orbitofrontal cortex (mOFC). No significant interactions were found in the food viewing task, neither between the conditions high-calorie and low-calorie food images nor between the different time points. This could possibly be due to the small sample size and the lack of a control group. CONCLUSION The results showed a difference in the response of reward-related brain areas post-DBS. This supports the hypotheses that the reward circuitry is involved in the pathogenesis of AN and that DBS affects responsivity of reward-related brain areas. Trial registration Registered in the Netherlands Trial Register ( https://www.trialregister.nl/trial/3322 ): NL3322 (NTR3469).
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Affiliation(s)
- M S Oudijn
- Department of Psychiatry and Neurosurgery, Amsterdam University Medical Centers (AUMC)-Academic Medical Center (AMC), University of Amsterdam (UvA), PO Box 22660, 1100 DD, Amsterdam, The Netherlands.
| | - J T W Linders
- Department of Psychiatry and Neurosurgery, Amsterdam University Medical Centers (AUMC)-Academic Medical Center (AMC), University of Amsterdam (UvA), PO Box 22660, 1100 DD, Amsterdam, The Netherlands
| | - A Lok
- Department of Psychiatry and Neurosurgery, Amsterdam University Medical Centers (AUMC)-Academic Medical Center (AMC), University of Amsterdam (UvA), PO Box 22660, 1100 DD, Amsterdam, The Netherlands
| | - P R Schuurman
- Department of Psychiatry and Neurosurgery, Amsterdam University Medical Centers (AUMC)-Academic Medical Center (AMC), University of Amsterdam (UvA), PO Box 22660, 1100 DD, Amsterdam, The Netherlands
| | - P van den Munckhof
- Department of Psychiatry and Neurosurgery, Amsterdam University Medical Centers (AUMC)-Academic Medical Center (AMC), University of Amsterdam (UvA), PO Box 22660, 1100 DD, Amsterdam, The Netherlands
| | - A A van Elburg
- Faculty of Social Sciences, University of Utrecht, Utrecht, The Netherlands
| | - G A van Wingen
- Department of Psychiatry and Neurosurgery, Amsterdam University Medical Centers (AUMC)-Academic Medical Center (AMC), University of Amsterdam (UvA), PO Box 22660, 1100 DD, Amsterdam, The Netherlands
| | - R J T Mocking
- Department of Psychiatry and Neurosurgery, Amsterdam University Medical Centers (AUMC)-Academic Medical Center (AMC), University of Amsterdam (UvA), PO Box 22660, 1100 DD, Amsterdam, The Netherlands
| | - D Denys
- Department of Psychiatry and Neurosurgery, Amsterdam University Medical Centers (AUMC)-Academic Medical Center (AMC), University of Amsterdam (UvA), PO Box 22660, 1100 DD, Amsterdam, The Netherlands
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Yu X, Desrivières S. Altered anticipatory brain responses in eating disorders: A neuroimaging meta-analysis. EUROPEAN EATING DISORDERS REVIEW 2023; 31:363-376. [PMID: 36639902 PMCID: PMC10947459 DOI: 10.1002/erv.2967] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 11/24/2022] [Accepted: 12/29/2022] [Indexed: 01/15/2023]
Abstract
OBJECTIVE Functional neuroimaging studies have found differential neural activation patterns during anticipation-related paradigms in participants with eating disorders (EDs) compared to controls. However, publications reported conflicting results on the directionality and location of the abnormal activations. There is an urgent need to integrate our existing knowledge of anticipation, both rewarding and aversive, to elucidate these differences. METHOD We conducted an activation likelihood estimation (ALE) meta-analysis to quantitatively review functional neuroimaging studies that evaluated differences between brain correlates of anticipation in participants with and without disordered eating. PubMed, Web of Sciences, PsycINFO, Medline and EMBASE were searched for studies published up to November 2022. Exploratory sub-analyses to check for differences between reward and non-reward anticipation among all anticipation paradigms. RESULTS Twenty-one references met the inclusion criteria for meta-analysis. The meta-analysis across anticipation all tasks identified a significant hyperactivation cluster in the right putamen in participants with disordered eating (n = 17 experiments) and a significant hypoactivation cluster in the left inferior parietal lobule (n = 13 experiments), in participants with disordered eating compared to controls. CONCLUSIONS These findings and sub-analyses of reward- and non-reward-related cues suggest potential pathophysiological mechanisms underlying anticipatory responses to rewarding and aversive cues in ED.
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Affiliation(s)
- Xinyang Yu
- Social, Genetic and Developmental Psychiatry CentreInstitute of Psychiatry, Psychology & NeuroscienceKing's College LondonLondonUK
| | - Sylvane Desrivières
- Social, Genetic and Developmental Psychiatry CentreInstitute of Psychiatry, Psychology & NeuroscienceKing's College LondonLondonUK
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8
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Kruithof ES, Klaus J, Schutter DJLG. The human cerebellum in reward anticipation and reward outcome processing: An activation likelihood estimation meta-analysis. Neurosci Biobehav Rev 2023; 149:105171. [PMID: 37060968 DOI: 10.1016/j.neubiorev.2023.105171] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 03/10/2023] [Accepted: 04/11/2023] [Indexed: 04/17/2023]
Abstract
The cerebellum generates internal prediction models and actively compares anticipated and actual outcomes in order to reach a desired end state. In this process, reward can serve as a reinforcer that shapes internal prediction models, enabling context-appropriate behavior. While the involvement of the cerebellum in reward processing has been established in animals, there is no detailed account of which cerebellar regions are involved in reward anticipation and reward outcome processing in humans. To this end, an activation likelihood estimation meta-analysis of functional neuroimaging studies was performed to investigate cerebellar functional activity patterns associated with reward anticipation and reward outcome processing in healthy adults. Results showed that reward anticipation (k=31) was associated with regional activity in the bilateral anterior lobe, bilateral lobule VI, left Crus I and the posterior vermis, while reward outcome (k=16) was associated with regional activity in the declive and left lobule VI. The findings of this meta-analysis show distinct involvement of the cerebellum in reward anticipation and reward outcome processing as part of a predictive coding routine.
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Affiliation(s)
- Eline S Kruithof
- Department of Experimental Psychology, Helmholtz Institute, Utrecht University, Heidelberglaan 1, 3584 CS, Utrecht, the Netherlands.
| | - Jana Klaus
- Department of Experimental Psychology, Helmholtz Institute, Utrecht University, Heidelberglaan 1, 3584 CS, Utrecht, the Netherlands
| | - Dennis J L G Schutter
- Department of Experimental Psychology, Helmholtz Institute, Utrecht University, Heidelberglaan 1, 3584 CS, Utrecht, the Netherlands
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9
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Criscuolo M, Marchetto C, Buzzonetti A, Castiglioni MC, Cereser L, Salvo P, Zanna V. Parental Emotional Availability and Family Functioning in Adolescent Anorexia Nervosa Subtypes. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 20:68. [PMID: 36612388 PMCID: PMC9819780 DOI: 10.3390/ijerph20010068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/16/2022] [Accepted: 12/19/2022] [Indexed: 06/17/2023]
Abstract
Emotional availability (EA) is a complex construct describing the emotional bond between parents and child, and it refers to support, sensitivity, warmth and closeness. Few studies have investigated the perception of parental EA and its association with dysfunctional eating pattern. The aim of the study is to explore the perception of mothers' and fathers' EA of adolescents with anorexia nervosa (AN) and any differences between the two subtypes of binge-purge (B/P) or restrictive (R) AN. Furthermore, it investigates the association of parental EA with AN symptomatology and with patients' perception of family functioning, which is identified as a maintenance factor for AN. A total of 60 adolescents between 12 and 18 years and their parents (n = 120) were recruited in two eating disorder (ED) specialized care centers. Patients completed the LEAP and the FACES IV questionnaires evaluating parental EA and family functioning, respectively. Results showed no difference between AN subtypes, but a greater perception of mother when compared to father EA was found. Moreover, the EA construct was found not to be associated with ED symptomatology but with a greater positive family functioning. Our study is the first that explores EA in AN, and results suggest the importance of considering parents' emotional engagement as part of the treatment core, together with the eating symptomatology management.
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Affiliation(s)
- Michela Criscuolo
- Anorexia Nervosa and Eating Disorder Unit, Child Neuropsychiatry, Department of Neuroscience, Bambino Gesù Childrens’ Hospital IRCCS, 00165 Rome, Italy
| | - Chiara Marchetto
- Anorexia Nervosa and Eating Disorder Unit, Child Neuropsychiatry, Department of Neuroscience, Bambino Gesù Childrens’ Hospital IRCCS, 00165 Rome, Italy
| | - Alessandra Buzzonetti
- Center for Pediatric Palliative Care, Bambino Gesù Childrens’ Hospital IRCCS, 00165 Rome, Italy
| | - Maria Chiara Castiglioni
- Anorexia Nervosa and Eating Disorder Unit, Child Neuropsychiatry, Department of Neuroscience, Bambino Gesù Childrens’ Hospital IRCCS, 00165 Rome, Italy
| | - Lucia Cereser
- Center for Eating Disorders and Weight, 30026 Portogruaro, Italy
| | - Pierandrea Salvo
- Center for Eating Disorders and Weight, 30026 Portogruaro, Italy
| | - Valeria Zanna
- Anorexia Nervosa and Eating Disorder Unit, Child Neuropsychiatry, Department of Neuroscience, Bambino Gesù Childrens’ Hospital IRCCS, 00165 Rome, Italy
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10
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Leenaerts N, Jongen D, Ceccarini J, Van Oudenhove L, Vrieze E. The neurobiological reward system and binge eating: A critical systematic review of neuroimaging studies. Int J Eat Disord 2022; 55:1421-1458. [PMID: 35841198 DOI: 10.1002/eat.23776] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 06/28/2022] [Accepted: 06/28/2022] [Indexed: 11/09/2022]
Abstract
OBJECTIVE Changes in reward processing are hypothesized to play a role in the onset and maintenance of binge eating (BE). However, despite an increasing number of studies investigating the neurobiological reward system in individuals who binge eat, no comprehensive systematic review exists on this topic. Therefore, this review has the following objectives: (1) identify structural and functional changes in the brain reward system, either during rest or while performing a task; and (2) formulate directions for future research. METHODS A search was conducted of articles published until March 31, 2022. Neuroimaging studies were eligible if they wanted to study the reward system and included a group of individuals who binge eat together with a comparator group. Their results were summarized in a narrative synthesis. RESULTS A total of 58 articles were included. At rest, individuals who binge eat displayed a lower striatal dopamine release, a change in the volume of the striatum, frontal cortex, and insula, as well as a lower frontostriatal connectivity. While performing a task, there was a higher activity of the brain reward system when anticipating or receiving food, more model-free reinforcement learning, and more habitual behavior. Most studies only included one patient group, used general reward-related measures, and did not evaluate the impact of comorbidities, illness duration, race, or sex. DISCUSSION Confirming previous hypotheses, this review finds structural and functional changes in the neurobiological reward system in BE. Future studies should compare disorders, use measures that are specific to BE, and investigate the impact of confounding factors. PUBLIC SIGNIFICANCE STATEMENT This systematic review finds that individuals who binge eat display structural and functional changes in the brain reward system. These changes could be related to a higher sensitivity to food, relying more on previous experiences when making decisions, and more habitual behavior. Future studies should use a task that is specific to binge eating, look across different patient groups, and investigate the impact of comorbidities, illness duration, race, and sex.
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Affiliation(s)
- Nicolas Leenaerts
- Mind-body Research, Biomedical Sciences Group, KU Leuven, Leuven, Belgium
| | - Daniëlle Jongen
- Laboratory for Brain-Gut Axis Studies (LaBGAS), Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Leuven, Belgium
| | - Jenny Ceccarini
- Nuclear Medicine and Molecular Imaging, Department of Imaging and Pathology, KU Leuven, Leuven, Belgium
| | - Lukas Van Oudenhove
- Laboratory for Brain-Gut Axis Studies (LaBGAS), Translational Research Center for Gastrointestinal Disorders (TARGID), Department of Chronic Diseases and Metabolism (CHROMETA), KU Leuven, Leuven, Belgium.,Cognitive & Affective Neuroscience Laboratory, Department of Psychological & Brain Sciences, Dartmouth College, Hanover, New Hampshire, USA
| | - Elske Vrieze
- Mind-body Research, Biomedical Sciences Group, KU Leuven, Leuven, Belgium
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11
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Uniacke B, Slattery R, Walsh BT, Shohamy D, Foerde K, Steinglass J. A comparison of food-based decision-making between restricting and binge-eating/purging subtypes of anorexia nervosa. Int J Eat Disord 2020; 53:1751-1756. [PMID: 32789884 PMCID: PMC8432595 DOI: 10.1002/eat.23359] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 07/13/2020] [Accepted: 07/13/2020] [Indexed: 11/12/2022]
Abstract
OBJECTIVE By definition, restricting (ANR) and binge-eating/purging (ANBP) subtypes of anorexia nervosa (AN) differ in some manifestations of maladaptive eating behavior. This study aimed to determine whether the groups differ in the choices they make about what to eat, and whether there are differences in valuation related to food choice, using an experimental paradigm. METHOD Inpatients with ANR (n = 40) and ANBP (n = 46) participated in a Food Choice Task. During the task, participants rated 76 food images for healthiness and tastiness, and choice preferences. Groups were compared in percent selection of high-fat and low-fat foods, value ratings of foods, and engagement of self-control in food choice. RESULTS There were no differences between AN subtypes in healthiness or tastiness ratings, or in tendency to limit choice of high-fat foods. There was no difference between the groups in measures of self-control in food choice. DISCUSSION Individuals with ANR and ANBP similarly manifest reduced choices of high-fat foods, with similar tendencies to undervalue the tastiness of high-fat foods. These results suggest that while individuals with ANR and ANBP differ across a range of clinical characteristics, the decision-making process associated with the maladaptive restriction of high-fat foods characteristic of AN is shared by both subtypes.
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Affiliation(s)
- Blair Uniacke
- Department of Psychiatry, Columbia University Irving Medical Center, New York, NY,Department of Psychiatry, New York State Psychiatric Institute, New York, NY
| | - Reile Slattery
- Department of Psychiatry, Weill Cornell Medicine, New York, NY
| | - B. Timothy Walsh
- Department of Psychiatry, Columbia University Irving Medical Center, New York, NY,Department of Psychiatry, New York State Psychiatric Institute, New York, NY
| | - Daphna Shohamy
- Department of Psychology, Columbia University, New York, NY,Kavli Institute for Brain Science, Columbia University, New York, NY
| | - Karin Foerde
- Department of Psychiatry, New York State Psychiatric Institute, New York, NY,Department of Psychology, Columbia University, New York, NY
| | - Joanna Steinglass
- Department of Psychiatry, Columbia University Irving Medical Center, New York, NY,Department of Psychiatry, New York State Psychiatric Institute, New York, NY
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12
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Haynos AF, Lavender JM, Nelson J, Crow SJ, Peterson CB. Moving towards specificity: A systematic review of cue features associated with reward and punishment in anorexia nervosa. Clin Psychol Rev 2020; 79:101872. [PMID: 32521390 DOI: 10.1016/j.cpr.2020.101872] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 03/16/2020] [Accepted: 05/24/2020] [Indexed: 12/13/2022]
Abstract
Models of anorexia nervosa (AN) posit that symptoms are maintained through deficient reward and enhanced punishment processing. However, theoretical and empirical inconsistencies highlight the need for a more nuanced conceptualization of this literature. Our goal was to comprehensively review the research on reward and punishment responding in AN from a cue-specific lens to determine which stimuli evoke or discourage reward and punishment responses in this population, and, ultimately, what properties these rewarding and punishing cues might share. A systematic review interrogating reward and punishment responses to specific cues yielded articles (n = 92) that examined responses to disorder relevant (e.g., food) and irrelevant (e.g., money) stimuli across self-report, behavioral, and biological indices. Overall, in most studies individuals with AN exhibited aversive responses to cues signaling higher body weights, social contexts, and monetary losses, and appetitive responses to cues for weight loss behaviors and thinness. Findings were more mixed on responses to palatable food and monetary gains. Results highlight that reward and punishment responding in AN are context specific and may be affected by varied stimulus qualities (e.g., predictability, controllability, delay, effort). Increasing specificity in future research on reward and punishment mechanisms in AN will better inform development of precisely-targeted interventions.
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Affiliation(s)
- Ann F Haynos
- Department of Psychiatry and Behavioral Sciences, University of Minnesota, Minneapolis, MN, United States of America.
| | - Jason M Lavender
- Military Cardiovascular Outcomes Research (MiCOR) Program, Department of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, United States of America; The Metis Foundation, San Antonio, TX, United States of America
| | - Jillian Nelson
- Department of Psychology, George Mason University, Fairfax, VA, United States of America
| | - Scott J Crow
- Department of Psychiatry and Behavioral Sciences, University of Minnesota, Minneapolis, MN, United States of America; The Emily Program, St. Paul, MN, United States of America
| | - Carol B Peterson
- Department of Psychiatry and Behavioral Sciences, University of Minnesota, Minneapolis, MN, United States of America; The Emily Program, St. Paul, MN, United States of America
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13
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Frewen P, Schroeter ML, Riva G, Cipresso P, Fairfield B, Padulo C, Kemp AH, Palaniyappan L, Owolabi M, Kusi-Mensah K, Polyakova M, Fehertoi N, D’Andrea W, Lowe L, Northoff G. Neuroimaging the consciousness of self: Review, and conceptual-methodological framework. Neurosci Biobehav Rev 2020; 112:164-212. [DOI: 10.1016/j.neubiorev.2020.01.023] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2019] [Revised: 01/06/2020] [Accepted: 01/20/2020] [Indexed: 01/04/2023]
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14
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Jonker NC, Glashouwer KA, Hoekzema A, Ostafin BD, de Jong PJ. Heightened self-reported punishment sensitivity, but no differential attention to cues signaling punishment or reward in anorexia nervosa. PLoS One 2020; 15:e0229742. [PMID: 32126134 PMCID: PMC7053765 DOI: 10.1371/journal.pone.0229742] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Accepted: 02/13/2020] [Indexed: 11/26/2022] Open
Abstract
This study examined whether adolescents with anorexia nervosa (AN) are more sensitive to punishment and less sensitive to reward than a non-eating disorder comparison group. Both self-report and performance measures were used to index reward and punishment sensitivity. Participants were adolescents with AN (n = 69) and an individually matched comparison group with healthy weight (n = 69). They completed the Behavioral Inhibition Scale/Behavioral Activation Scale and the Sensitivity to Punishment and Sensitivity to Reward Questionnaire to index self-reported reward and punishment sensitivity, and performed the Spatial Orientation Task to index attention to cues signaling reward and punishment. There was extremely strong evidence (BF10 > 100), that adolescents with AN reported higher sensitivity to punishment than adolescents without an eating disorder. However, adolescents with AN did not differ from the comparison group on self-reported reward sensitivity, and attention to cues signaling reward or punishment. Adolescents with AN clearly show heightened punishment sensitivity, yet this was not paralleled by a heightened proneness to detect signals of punishment. An important next step would be to examine whether punishment sensitivity is a reliable risk factor for the development or maintenance of AN.
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Affiliation(s)
- Nienke C. Jonker
- University of Groningen, department of Clinical Psychology and Experimental Psychopathology, Groningen, The Netherlands
- * E-mail:
| | - Klaske A. Glashouwer
- University of Groningen, department of Clinical Psychology and Experimental Psychopathology, Groningen, The Netherlands
- Accare Child and Adolescent Psychiatry, Department of Eating Disorders, Groningen, The Netherlands
| | - Albert Hoekzema
- University of Groningen, Department of Research Support, Faculty of Behavioral and Social Sciences, Groningen, The Netherlands
| | - Brian D. Ostafin
- University of Groningen, department of Clinical Psychology and Experimental Psychopathology, Groningen, The Netherlands
| | - Peter J. de Jong
- University of Groningen, department of Clinical Psychology and Experimental Psychopathology, Groningen, The Netherlands
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15
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Sala M, Egbert AH, Lavender JM, Goldschmidt AB. Affect, reward, and punishment in anorexia nervosa: a narrative overview. Eat Weight Disord 2018; 23:731-737. [PMID: 30288725 PMCID: PMC7479630 DOI: 10.1007/s40519-018-0588-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/11/2017] [Accepted: 09/26/2018] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION Anorexia nervosa (AN) is a serious psychiatric disorder that is difficult to treat and often follows a protracted course. A number of theoretical models have been proposed for the etiology and maintenance of AN. Two domains that have received substantial attention in the literature on AN are affect and reward/punishment processes. However, despite an overlap in the nature and implications of these processes, studies of AN addressing these constructs have typically investigated them independently. PURPOSE The purpose of this narrative review is to integrate the literature on the role of affect, reward, and punishment in AN. METHOD We provide a focused narrative overview of the literature relating to the affect, reward, and punishment in AN via a synthesis of recent reviews and meta-analyses. RESULTS We first describe several prominent affect and reward/punishment-based conceptualizations of AN, followed by a brief overview of the existing empirical literature in these domains. CONCLUSION We provide a critical discussion of the disparate nature of these literatures in AN, including associated limitations. We then conclude with an extensive discussion of directions for future research that integrate the study of affect and reward/punishment processes in AN. LEVEL OF EVIDENCE Level V, narrative review.
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Affiliation(s)
- Margarita Sala
- Department of Psychology, Southern Methodist University, PO Box 750442, Dallas, TX, 75206, USA.
| | - Amy H Egbert
- Department of Psychology, Loyola University Chicago, Chicago, IL, USA
| | - Jason M Lavender
- Department of Psychiatry, University of California, La Jolla, San Diego, CA, USA
| | - Andrea B Goldschmidt
- Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Weight Control and Diabetes Research Center/The Miriam Hospital, Providence, RI, USA
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16
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Phillipou A, Rossell SL, Gurvich C, Castle DJ, Abel LA, Nibbs RG, Hughes ME. Differences in regional grey matter volumes in currently ill patients with anorexia nervosa. Eur J Neurosci 2018; 47:177-183. [PMID: 29244231 DOI: 10.1111/ejn.13793] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Revised: 10/29/2017] [Accepted: 12/01/2017] [Indexed: 01/03/2023]
Abstract
Neurobiological findings in anorexia nervosa (AN) are inconsistent, including differences in regional grey matter volumes. Methodological limitations often contribute to the inconsistencies reported. The aim of this study was to improve on these methodologies by utilising voxel-based morphometry (VBM) analysis with the use of diffeomorphic anatomic registration through an exponentiated lie algebra algorithm (DARTEL), in a relatively large group of individuals with AN. Twenty-six individuals with AN and 27 healthy controls underwent a T1-weighted magnetic resonance imaging (MRI) scan. AN participants were found to have reduced grey matter volumes in a number of areas including regions of the basal ganglia (including the ventral striatum), and parietal and temporal cortices. Body mass index (BMI) and global scores on the Eating Disorder Examination Questionnaire (EDE-Q) were also found to correlate with grey matter volumes in a region of the brainstem (including the substantia nigra and ventral tegmental area) in AN, and predicted 56% of the variance in grey matter volumes in this area. The brain regions associated with grey matter reductions in AN are consistent with regions responsible for cognitive deficits associated with the illness including anhedonia, deficits in affect perception and saccadic eye movement abnormalities. Overall, the findings suggest reduced grey matter volumes in AN that are associated with eating disorder symptomatology.
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Affiliation(s)
- Andrea Phillipou
- Department of Optometry & Vision Sciences, The University of Melbourne, Melbourne, VIC, Australia.,Department of Psychiatry, The University of Melbourne, Melbourne, VIC, Australia.,Department of Mental Health, The Austin Hospital, Melbourne, VIC, Australia.,Department of Psychiatry, St Vincent's Hospital, Melbourne, VIC, Australia.,Centre for Mental Health, Swinburne University of Technology, John St, Hawthorn, Melbourne, VIC, 3122, Australia
| | - Susan Lee Rossell
- Department of Psychiatry, St Vincent's Hospital, Melbourne, VIC, Australia.,Centre for Mental Health, Swinburne University of Technology, John St, Hawthorn, Melbourne, VIC, 3122, Australia.,Monash Alfred Psychiatry Research Centre, Monash University & The Alfred Hospital, Melbourne, VIC, Australia
| | - Caroline Gurvich
- Monash Alfred Psychiatry Research Centre, Monash University & The Alfred Hospital, Melbourne, VIC, Australia
| | - David Jonathan Castle
- Department of Psychiatry, The University of Melbourne, Melbourne, VIC, Australia.,Department of Psychiatry, St Vincent's Hospital, Melbourne, VIC, Australia
| | - Larry Allen Abel
- Department of Optometry & Vision Sciences, The University of Melbourne, Melbourne, VIC, Australia
| | - Richard Grant Nibbs
- Centre for Mental Health, Swinburne University of Technology, John St, Hawthorn, Melbourne, VIC, 3122, Australia
| | - Matthew Edward Hughes
- Centre for Mental Health, Swinburne University of Technology, John St, Hawthorn, Melbourne, VIC, 3122, Australia
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17
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Steward T, Menchón JM, Jiménez-Murcia S, Soriano-Mas C, Fernández-Aranda F. Neural Network Alterations Across Eating Disorders: A Narrative Review of fMRI Studies. Curr Neuropharmacol 2018; 16:1150-1163. [PMID: 29046154 PMCID: PMC6187750 DOI: 10.2174/1570159x15666171017111532] [Citation(s) in RCA: 87] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 08/18/2017] [Accepted: 10/10/2017] [Indexed: 11/22/2022] Open
Abstract
BACKGROUND Functional magnetic resonance imaging (fMRI) has provided insight on how neural abnormalities are related to the symptomatology of the eating disorders (EDs): anorexia nervosa (AN), bulimia nervosa (BN), and binge eating disorder (BED). More specifically, an increasingly growing number of brain imaging studies has shed light on how functionally connected brain networks contribute not only to disturbed eating behavior, but also to transdiagnostic alterations in body/interoceptive perception, reward processing and executive functioning. METHODS This narrative review aims to summarize recent advances in fMRI studies of patients with EDs by highlighting studies investigating network alterations that are shared across EDs. RESULTS AND CONCLUSION Findings on reward processing in both AN and BN patients point to the presence of altered sensitivity to salient food stimuli in striatal regions and to the possibility of hypothalamic inputs being overridden by top-down emotional-cognitive control regions. Additionally, innovative new lines of research suggest that increased activations in fronto-striatal circuits are strongly associated with the maintenance of restrictive eating habits in AN patients. Although significantly fewer studies have been carried out in patients with BN and BED, aberrant neural responses to both food cues and anticipated food receipt appear to occur in these populations. These altered responses, coupled with diminished recruitment of prefrontal cognitive control circuitry, are believed to contribute to the binge eating of palatable foods. Results from functional network connectivity studies are diverse, but findings tend to converge on indicating disrupted resting-state connectivity in executive networks, the default-mode network and the salience network across EDs.
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Affiliation(s)
| | | | | | - Carles Soriano-Mas
- Address correspondence to these authors at the Department of Psychiatry, Bellvitge University Hospital-IDIBELL, CIBEROBN and CIBERSAM, c/ Feixa Llarga s/n, 08907 L’Hospitalet de Llobregat Barcelona, Spain; Tel: +34 93 260 79 88; Fax: +34 93 260 76 58; E-mails: &
| | - Fernando Fernández-Aranda
- Address correspondence to these authors at the Department of Psychiatry, Bellvitge University Hospital-IDIBELL, CIBEROBN and CIBERSAM, c/ Feixa Llarga s/n, 08907 L’Hospitalet de Llobregat Barcelona, Spain; Tel: +34 93 260 79 88; Fax: +34 93 260 76 58; E-mails: &
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18
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Reas DL, Rø Ø. Less symptomatic, but equally impaired: Clinical impairment in restricting versus binge-eating/purging subtype of anorexia nervosa. Eat Behav 2018; 28:32-37. [PMID: 29310054 DOI: 10.1016/j.eatbeh.2017.12.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2017] [Revised: 12/18/2017] [Accepted: 12/28/2017] [Indexed: 12/23/2022]
Abstract
OBJECTIVE This study investigated subtype differences in eating disorder-specific impairment in a treatment-seeking sample of individuals with anorexia nervosa (AN). METHOD The Clinical Impairment Assessment (CIA) and the Eating Disorder Examination-Questionnaire (EDE-Q) were administered to 142 patients. Of these, 54.9% were classified as restricting type (AN-R) and 45.1% were classified as binge-eating/purging type (AN-B/P) based on an average weekly occurrence of binge eating and/or purging episodes (≥4 episodes/28days). RESULTS Individuals with AN-B/P exhibited higher levels of core ED psychopathology (dietary restraint, eating concern, shape/weight concerns) in addition to the expected higher frequency of binge/purge episodes. No significant differences existed between AN subtypes in the severity of ED-related impairment. Weight/shape concerns and binge eating frequency significantly predicted level of impairment. Differential associations were observed between the type of ED pathology that significantly contributed to impairment according to AN subtype. DISCUSSION Although those with AN-B/P displayed higher levels of core attitudinal and behavioral ED pathology than AN-R, no significant differences in ED-specific impairment were found between AN subtypes. Eating disorder-related impairment in AN was not related to the severity of underweight or purging behaviors, but was uniquely and positively associated with weight/shape concerns and binge eating frequency.
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Affiliation(s)
- Deborah Lynn Reas
- Regional Department for Eating Disorders, Division of Mental Health and Addiction, Oslo University Hospital, Norway; Department of Psychology, Faculty of Social Sciences, University of Oslo, Norway.
| | - Øyvind Rø
- Regional Department for Eating Disorders, Division of Mental Health and Addiction, Oslo University Hospital, Norway; Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Norway
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