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Hamamoto Y, Oba K, Ishibashi R, Ding Y, Nouchi R, Sugiura M. Reduced body-image disturbance by body-image interventions is associated with neural-response changes in visual and social processing regions: a preliminary study. Front Psychiatry 2024; 15:1337776. [PMID: 38510808 PMCID: PMC10951070 DOI: 10.3389/fpsyt.2024.1337776] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/13/2023] [Accepted: 02/15/2024] [Indexed: 03/22/2024] Open
Abstract
Introduction Body-image disturbance is a major factor in the development of eating disorders, especially among young women. There are two main components: perceptual disturbance, characterized by a discrepancy between perceived and actual body size, and affective disturbance, characterized by a discrepancy between perceived and ideal body size. Interventions targeting body-image disturbance ask individuals to describe their own body without using negative expressions when either viewing it in a mirror or imagining it. Despite the importance of reducing body-image disturbance, its neural mechanisms remain unclear. Here we investigated the changes in neural responses before and after an intervention. We hypothesized that neural responses correlated with the degree of body-image disturbance would also be related to its reduction, i.e., a reduction in perceptual and affective disturbances would be related to changes in attentional and socio-cognitive processing, respectively. Methods Twenty-eight young adult women without known psychiatric disorders underwent a single 40-min intervention. Participants completed tasks before and after the intervention, in which they estimated their perceived and ideal body sizes using distorted silhouette images to measure body-image disturbance. We analyzed the behavioral and neural responses of participants during the tasks. Results The intervention did not significantly reduce body-image disturbance. Analysis of individual differences showed distinct changes in neural responses for each type of disturbance. A decrease in perceptual disturbance was associated with bodily visuospatial processing: increased activation in the left superior parietal lobule, bilateral occipital gyri, and right cuneus. Reduced affective disturbance was associated with socio-cognitive processing; decreased activation in the right temporoparietal junction, and increased functional connectivity between the left extrastriate body area and the right precuneus. Discussion We identified distinct neural mechanisms (bodily visuospatial and socio-cognitive processing) associated with the reduction in each component of body-image disturbance. Our results imply that different neural mechanisms are related to reduced perceptual disturbance and the expression thereof, whereas similar neural mechanisms are related to the reduction and expression of affective disturbance. Considering the small sample size of this study, our results should be regarded as preliminary.
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Affiliation(s)
- Yumi Hamamoto
- Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
- Department of Psychology, Northumbria University, Newcastle upon Tyne, United Kingdom
- Japan Society for the Promotion of Science, Tokyo, Japan
| | - Kentaro Oba
- Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Ryo Ishibashi
- Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Yi Ding
- Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
- Japan Society for the Promotion of Science, Tokyo, Japan
- School of Medicine, Tohoku University, Sendai, Japan
| | - Rui Nouchi
- Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
| | - Motoaki Sugiura
- Institute of Development, Aging and Cancer, Tohoku University, Sendai, Japan
- International Research Institute of Disaster Science, Tohoku University, Sendai, Japan
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The effect of body image dissatisfaction on goal-directed decision making in a population marked by negative appearance beliefs and disordered eating. PLoS One 2022; 17:e0276750. [PMID: 36441713 PMCID: PMC9704573 DOI: 10.1371/journal.pone.0276750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2022] [Accepted: 10/13/2022] [Indexed: 11/29/2022] Open
Abstract
Eating disorders are associated with one of the highest mortality rates among all mental disorders, yet there is very little research about them within the newly emerging and promising field of computational psychiatry. As such, we focus on investigating a previously unexplored, yet core aspect of eating disorders-body image dissatisfaction. We continue a freshly opened debate about model-based learning and its trade-off against model-free learning-a proxy for goal-directed and habitual behaviour. We perform a behavioural study that utilises a two-step decision-making task and a reinforcement learning model to understand the effect of body image dissatisfaction on model-based learning in a population characterised by high scores of disordered eating and negative appearance beliefs, as recruited using Prolific. We find a significantly reduced model-based contribution in the body image dissatisfaction task condition in the population of interest as compared to a healthy control. This finding suggests general deficits in deliberate control in this population, leading to habitual, compulsive-like behaviours (body checking) dominating the experience. Importantly, the results may inform treatment approaches, which could focus on enhancing the reliance on goal-directed decision making to help cope with unwanted behaviours.
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Magrini M, Curzio O, Tampucci M, Donzelli G, Cori L, Imiotti MC, Maestro S, Moroni D. Anorexia Nervosa, Body Image Perception and Virtual Reality Therapeutic Applications: State of the Art and Operational Proposal. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19052533. [PMID: 35270226 PMCID: PMC8909096 DOI: 10.3390/ijerph19052533] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/24/2021] [Revised: 02/12/2022] [Accepted: 02/16/2022] [Indexed: 12/12/2022]
Abstract
Anorexia Nervosa (AN) patients exhibit distorted body representation. The purpose of this study was to explore studies that analyze virtual reality (VR) applications, related to body image issues, to propose a new tool in this field. We conducted a systematic review in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. PubMed, EMBASE, Scopus, and Web of Science databases were explored; the review included 25 studies. Research has increased over the last five years. The selected studies, clinical observational studies (n = 16), mostly concerning patients' population with AN (n = 14) or eating disorders (EDs) diagnosis, presented multiple designs, populations involved, and procedures. Some of these studies included healthy control groups (n = 7). Studies on community sample populations were also selected if oriented toward clinical applications (n = 9). The VR technologies in the examined period (about 20 years) have evolved significantly, going from very complex and bulky systems, requiring very powerful computers, to agile systems. The advent of low-cost VR devices has given a big boost to research works. Moreover, the operational proposal that emerges from this work supports the use of biofeedback techniques aimed at evaluating the results of therapeutic interventions in the treatment of adolescent patients diagnosed with AN.
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Affiliation(s)
- Massimo Magrini
- Institute of Information Science and Technologies “Alessandro Faedo”, National Research Council, Via Moruzzi 1, 56124 Pisa, Italy; (M.M.); (M.T.); (D.M.)
| | - Olivia Curzio
- Unit of Environmental Epidemiology, Institute of Clinical Physiology, National Research Council, Via Moruzzi 1, 56124 Pisa, Italy; (L.C.); (M.C.I.)
- Correspondence:
| | - Marco Tampucci
- Institute of Information Science and Technologies “Alessandro Faedo”, National Research Council, Via Moruzzi 1, 56124 Pisa, Italy; (M.M.); (M.T.); (D.M.)
| | - Gabriele Donzelli
- Department of Health Science, University of Florence, 50134 Florence, Italy;
| | - Liliana Cori
- Unit of Environmental Epidemiology, Institute of Clinical Physiology, National Research Council, Via Moruzzi 1, 56124 Pisa, Italy; (L.C.); (M.C.I.)
| | - Maria Cristina Imiotti
- Unit of Environmental Epidemiology, Institute of Clinical Physiology, National Research Council, Via Moruzzi 1, 56124 Pisa, Italy; (L.C.); (M.C.I.)
| | - Sandra Maestro
- Department of Developmental Neuroscience, IRCCS Stella Maris Foundation, 56128 Calambrone, Italy;
| | - Davide Moroni
- Institute of Information Science and Technologies “Alessandro Faedo”, National Research Council, Via Moruzzi 1, 56124 Pisa, Italy; (M.M.); (M.T.); (D.M.)
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Sánchez-Ferrer ML, De La Cruz-Sánchez E, Arense-Gonzalo JJ, Prieto-Sánchez MT, Bernabeu-González I, Carmona-Barnosi A, Mendiola J, Torres-Cantero AM. Body Composition and Characterization of Skinfold Thicknesses from Polycystic Ovary Syndrome Phenotypes. A Preliminar Case-Control Study. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:2977. [PMID: 33799425 PMCID: PMC8002058 DOI: 10.3390/ijerph18062977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/08/2021] [Accepted: 03/09/2021] [Indexed: 11/16/2022]
Abstract
To describe whether polycystic ovary syndrome (PCOS) phenotypes vary in their body composition and skinfold (SKF) thicknesses and if they differ from women without PCOS, a preiminar case-control study was performed. A total of 117 cases were diagnosed using the Rotterdam criteria. Gynecological examinations and transvaginal ultrasound were performed in all women (266 women). Anthropometric measurements including SKF thickness were taken according to the restricted profile protocol of the international standards for the anthropometric evaluation according to the International Society of the Advancement of Kinanthropometry (ISAK). Women with PCOS had higher body mass index and percentage of fat mass with respect to controls. The endomorphy component was also significantly higher in women with PCOS than in controls. Each PCOS phenotype displayed a different representation in the somatochart respect to the others phenotypes and also compared to controls. Women with PCOS had significantly higher ∑7 SKF (p = 0.013), ∑appendicular SKF (p = 0.017) and ∑arm SKF (p = 0.019) than controls. H-O-POM phenotype had higher 7∑ SKF (p = 0.003), ∑appendicular SKF (p = 0.01), ∑arm SKF (0.005), ∑leg SKF, and ∑trunk SKF (0.008) and also a higher fast mass percentage than controls (p = 0.011). In conclusion, body composition evaluated by ISAK protocol is different in women with PCOS, especially in the complete phenotype (H-O-POM). This could have relevant implications in terms of clinical evaluation and follow-up of these women, although more researches in this field are needed.
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Affiliation(s)
- María L. Sánchez-Ferrer
- Department of Obstetrics & Gynecology, “Virgen de la Arrixaca” University Clinical Hospital, 30120 El Palmar, Spain; (M.L.S.-F.); (M.T.P.-S.); (I.B.-G.); (A.C.-B.)
- Institute for Biomedical Research of Murcia, IMIB-Arrixaca, 30120 El Palmar, Spain;
| | - Ernesto De La Cruz-Sánchez
- Division of Preventive Medicine and Public Health, Department of Physical Activity, Faculty of Sport Sciences, University of Murcia, C/Santa Alicia, s/n, 30720 Santiago de la Ribera, Spain;
| | - Julián J. Arense-Gonzalo
- Institute for Biomedical Research of Murcia, IMIB-Arrixaca, 30120 El Palmar, Spain;
- Division of Preventive Medicine and Public Health, Department of Public Health Sciences, University of Murcia School of Medicine, 30100 Espinardo, Spain;
| | - María T. Prieto-Sánchez
- Department of Obstetrics & Gynecology, “Virgen de la Arrixaca” University Clinical Hospital, 30120 El Palmar, Spain; (M.L.S.-F.); (M.T.P.-S.); (I.B.-G.); (A.C.-B.)
- Institute for Biomedical Research of Murcia, IMIB-Arrixaca, 30120 El Palmar, Spain;
| | - Itziar Bernabeu-González
- Department of Obstetrics & Gynecology, “Virgen de la Arrixaca” University Clinical Hospital, 30120 El Palmar, Spain; (M.L.S.-F.); (M.T.P.-S.); (I.B.-G.); (A.C.-B.)
| | - Ana Carmona-Barnosi
- Department of Obstetrics & Gynecology, “Virgen de la Arrixaca” University Clinical Hospital, 30120 El Palmar, Spain; (M.L.S.-F.); (M.T.P.-S.); (I.B.-G.); (A.C.-B.)
| | - Jaime Mendiola
- Division of Preventive Medicine and Public Health, Department of Public Health Sciences, University of Murcia School of Medicine, 30100 Espinardo, Spain;
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Alberto M. Torres-Cantero
- Institute for Biomedical Research of Murcia, IMIB-Arrixaca, 30120 El Palmar, Spain;
- Division of Preventive Medicine and Public Health, Department of Public Health Sciences, University of Murcia School of Medicine, 30100 Espinardo, Spain;
- CIBER Epidemiología y Salud Pública (CIBERESP), Instituto de Salud Carlos III, 28029 Madrid, Spain
- Department of Preventive Medicine, “Virgen de la Arrixaca” University Clinical Hospital, 30120 El Palmar, Spain
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Carapeto MJ, Domingos R, Veiga G. Is the Effect of Body Dissatisfaction on Depressive Symptoms Dependent on Weight Status? A Study with Early-to-Middle Adolescents. Eur J Investig Health Psychol Educ 2020; 10:1020-1034. [PMID: 34542433 PMCID: PMC8314315 DOI: 10.3390/ejihpe10040072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 10/29/2020] [Accepted: 10/30/2020] [Indexed: 11/24/2022] Open
Abstract
Depression is a recognized mental health problem in adolescence and body dissatisfaction is an important risk factor. The main goal of this study is to examine the relationship between body dissatisfaction and depressive symptoms, and whether it depends on adolescents' weight status, an issue that remains understudied. Two hundred and fourteen adolescents (12-16 years) completed self-report measures of depressive symptoms, body dissatisfaction and weight status (i.e., current body weight and height, to compute body mass index z-scores, BMIz). Hierarchical multiple regression and moderation analyses were conducted, accounting for gender and age effects on depressive symptoms. Body dissatisfaction was found to be a predictor of depressive symptoms for the low and median BMIz adolescents, but not for those with high BMIz. In addition, this interaction of body dissatisfaction and BMIz improved the ability of the regression model to explain depressive symptoms´ variance beyond the effect of gender and age. The high-BMIz adolescents presented higher body dissatisfaction but similar levels of depressive symptoms, compared to the lower BMIz adolescents. These findings suggest the influence of body dissatisfaction in the emergence of depressive symptoms in the first half of adolescence, and the importance of weight status throughout this path.
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Affiliation(s)
- Maria João Carapeto
- Departamento de Psicologia, Escola de Ciências Sociais, Universidade de Évora, 7005-345 Évora, Portugal
| | - Raquel Domingos
- Departamento de Desporto e Saúde, Escola de Ciências e Tecnologia, Universidade de Évora, 7005-345 Évora, Portugal; (R.D.); (G.V.)
| | - Guida Veiga
- Departamento de Desporto e Saúde, Escola de Ciências e Tecnologia, Universidade de Évora, 7005-345 Évora, Portugal; (R.D.); (G.V.)
- Comprehensive Health Research Centre (CHRC), University of Évora, 7005-345 Évora, Portugal
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