1
|
Ritz T, Schulz A, Khalsa S. The golden age of integrative neuroscience? The brain joins the body in the latest renaissance of interoception research. Biol Psychol 2024; 192:108851. [PMID: 39069198 DOI: 10.1016/j.biopsycho.2024.108851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/30/2024]
Affiliation(s)
- Thomas Ritz
- Department of Psychology, Southern Methodist University, Dallas, TX, USA.
| | - André Schulz
- Institute for Health and Behaviour, Department of Behavioural and Cognitive Sciences, University of Luxembourg, Luxembourg
| | - Sahib Khalsa
- Department of Psychiatry, UCLA Semel Institute for Neuroscience and Human Behavior, Los Angeles, CA, USA; Laureate Institute for Brain Research, Tulsa, OK, USA
| |
Collapse
|
2
|
Saramandi A, Crucianelli L, Koukoutsakis A, Nisticò V, Mavromara L, Goeta D, Boido G, Gonidakis F, Demartini B, Bertelli S, Gambini O, Jenkinson PM, Fotopoulou A. Updating Prospective Self-Efficacy Beliefs About Cardiac Interoception in Anorexia Nervosa: An Experimental and Computational Study. COMPUTATIONAL PSYCHIATRY (CAMBRIDGE, MASS.) 2024; 8:92-118. [PMID: 38948255 PMCID: PMC11212784 DOI: 10.5334/cpsy.109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Accepted: 05/29/2024] [Indexed: 07/02/2024]
Abstract
Patients with anorexia nervosa (AN) typically hold altered beliefs about their body that they struggle to update, including global, prospective beliefs about their ability to know and regulate their body and particularly their interoceptive states. While clinical questionnaire studies have provided ample evidence on the role of such beliefs in the onset, maintenance, and treatment of AN, psychophysical studies have typically focused on perceptual and 'local' beliefs. Across two experiments, we examined how women at the acute AN (N = 86) and post-acute AN state (N = 87), compared to matched healthy controls (N = 180) formed and updated their self-efficacy beliefs retrospectively (Experiment 1) and prospectively (Experiment 2) about their heartbeat counting abilities in an adapted heartbeat counting task. As preregistered, while AN patients did not differ from controls in interoceptive accuracy per se, they hold and maintain 'pessimistic' interoceptive, metacognitive self-efficacy beliefs after performance. Modelling using a simplified computational Bayesian learning framework showed that neither local evidence from performance, nor retrospective beliefs following that performance (that themselves were suboptimally updated) seem to be sufficient to counter and update pessimistic, self-efficacy beliefs in AN. AN patients showed lower learning rates than controls, revealing a tendency to base their posterior beliefs more on prior beliefs rather than prediction errors in both retrospective and prospective belief updating. Further explorations showed that while these differences in both explicit beliefs, and the latent mechanisms of belief updating, were not explained by general cognitive flexibility differences, they were explained by negative mood comorbidity, even after the acute stage of illness.
Collapse
Affiliation(s)
- Alkistis Saramandi
- Department of Clinical, Educational and Health Psychology, University College London, UK
| | - Laura Crucianelli
- Department of Clinical, Educational and Health Psychology, University College London, UK
- Department of Biological and Experimental Psychology, Queen Mary University of London, London, UK
| | | | - Veronica Nisticò
- Department of Clinical, Educational and Health Psychology, University College London, UK
- Department of Health Sciences, University of Milan, Milan, Italy
- Aldo Ravelli Research Centre for Neurotechnology and Experimental Brain Therapeutics, University of Milan, Italy
- Department of Psychology, University of Milan-Bicocca, Milan, Italy
| | - Liza Mavromara
- Department of Clinical, Educational and Health Psychology, University College London, UK
- Eating Disorders’ Unit, 1st Department of Psychiatry, National and Kapodistrian University of Athens, Greece
| | - Diana Goeta
- Psychiatry Unit, ASST Santi Paolo e Carlo, S. Carlo General Hospital, Milan, Italy
| | - Giovanni Boido
- Department of Health Sciences, University of Milan, Milan, Italy
| | - Fragiskos Gonidakis
- Eating Disorders’ Unit, 1st Department of Psychiatry, National and Kapodistrian University of Athens, Greece
| | - Benedetta Demartini
- Department of Clinical, Educational and Health Psychology, University College London, UK
- Department of Health Sciences, University of Milan, Milan, Italy
- Aldo Ravelli Research Centre for Neurotechnology and Experimental Brain Therapeutics, University of Milan, Italy
- Psychiatry Unit, ASST Santi Paolo e Carlo, S. Carlo General Hospital, Milan, Italy
| | - Sara Bertelli
- Psychiatry Unit, ASST Santi Paolo e Carlo, S. Paolo General Hospital, Milan, Italy
| | - Orsola Gambini
- Department of Health Sciences, University of Milan, Milan, Italy
- Aldo Ravelli Research Centre for Neurotechnology and Experimental Brain Therapeutics, University of Milan, Italy
- Psychiatry Unit, ASST Santi Paolo e Carlo, S. Paolo General Hospital, Milan, Italy
| | - Paul M. Jenkinson
- Department of Clinical, Educational and Health Psychology, University College London, UK
- Faculty of Psychology, Counselling and Psychotherapy, The Cairnmillar Institute, Melbourne, Australia
| | - Aikaterini Fotopoulou
- Department of Clinical, Educational and Health Psychology, University College London, UK
| |
Collapse
|
3
|
Reilly EE, Brown TA, Frank GKW. Perceptual Dysfunction in Eating Disorders. Curr Top Behav Neurosci 2024. [PMID: 38730196 DOI: 10.1007/7854_2024_470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/12/2024]
Abstract
Eating disorders (EDs) are characterized by abnormal responses to food and weight-related stimuli and are associated with significant distress, impairment, and poor outcomes. Because many of the cardinal symptoms of EDs involve disturbances in perception of one's body or abnormal affective or cognitive reactions to food intake and how that affects one's size, there has been longstanding interest in characterizing alterations in sensory perception among differing ED diagnostic groups. Within the current review, we aimed to critically assess the existing research on exteroceptive and interoceptive perception and how sensory perception may influence ED behavior. Overall, existing research is most consistent regarding alterations in taste, visual, tactile, and gastric-specific interoceptive processing in EDs, with emerging work indicating elevated respiratory and cardiovascular sensitivity. However, this work is far from conclusive, with most studies unable to speak to the precise etiology of observed perceptual differences in these domains and disentangle these effects from affective and cognitive processes observed within EDs. Further, existing knowledge regarding perceptual disturbances in EDs is limited by heterogeneity in methodology, lack of multimodal assessment protocols, and inconsistent attention to different ED diagnoses. We propose several new avenues for improving neurobiology-informed research on sensory processing to generate actionable knowledge that can inform the development of innovative interventions for these serious disorders.
Collapse
Affiliation(s)
- Erin E Reilly
- Department of Psychiatry and Behavioral Science, University of California, San Francisco, San Francisco, CA, USA
| | - Tiffany A Brown
- Department of Psychology, Auburn University, Auburn, AL, USA
| | - Guido K W Frank
- Department of Psychiatry, University of California, San Diego, CA, USA.
| |
Collapse
|
4
|
Lucherini Angeletti L, Spinelli MC, Cassioli E, Rossi E, Castellini G, Brogioni G, Ricca V, Rotella F. From Restriction to Intuition: Evaluating Intuitive Eating in a Sample of the General Population. Nutrients 2024; 16:1240. [PMID: 38674930 PMCID: PMC11053871 DOI: 10.3390/nu16081240] [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: 04/08/2024] [Accepted: 04/19/2024] [Indexed: 04/28/2024] Open
Abstract
Intuitive eating (IE) is a non-dieting approach that promotes listening to internal cues of hunger and satiety, rather than adhering to external dietary restrictions aimed at weight loss. However, the role of IE in dieting behaviors related to weight-loss approaches is still unclear. To address this issue, the aim of this study was to compare IE levels between dieting and non-dieting individuals, exploring the relationship between IE and dieting-related psychological and physical factors. A sample of 2059 females was recruited via social media and self-reported questionnaires were administered to measure IE, eating psychopathology, self-efficacy, and quality of life. Individuals with a history of dieting exhibited lower IE levels, a higher BMI, and a greater eating psychopathology, as well as a reduced self-efficacy and quality of life, compared to non-dieters. IE showed a protective effect against dieting behaviors, with higher IE levels being associated with a lower likelihood of dieting. Additionally, higher BMI and eating psychopathology were predictors of dieting. Promoting IE could represent a relevant clinical target strategy to address disordered eating and enhance overall well-being, underscoring the need for interventions that foster a healthier relationship with food and bodily internal sensations.
Collapse
Affiliation(s)
- Lorenzo Lucherini Angeletti
- Psychiatry Unit, Department of Health Sciences, University of Florence, Largo Brambilla, 3, 50134 Florence, Italy; (L.L.A.); (M.C.S.); (E.C.); (G.C.); (V.R.)
- The Royal’s Institute of Mental Health Research, University of Ottawa, Ottawa, ON K1Z 7K4, Canada
| | - Maria Chiara Spinelli
- Psychiatry Unit, Department of Health Sciences, University of Florence, Largo Brambilla, 3, 50134 Florence, Italy; (L.L.A.); (M.C.S.); (E.C.); (G.C.); (V.R.)
| | - Emanuele Cassioli
- Psychiatry Unit, Department of Health Sciences, University of Florence, Largo Brambilla, 3, 50134 Florence, Italy; (L.L.A.); (M.C.S.); (E.C.); (G.C.); (V.R.)
| | - Eleonora Rossi
- Psychiatry Unit, Department of Health Sciences, University of Florence, Largo Brambilla, 3, 50134 Florence, Italy; (L.L.A.); (M.C.S.); (E.C.); (G.C.); (V.R.)
| | - Giovanni Castellini
- Psychiatry Unit, Department of Health Sciences, University of Florence, Largo Brambilla, 3, 50134 Florence, Italy; (L.L.A.); (M.C.S.); (E.C.); (G.C.); (V.R.)
| | - Giulietta Brogioni
- Psychiatry Unit, AOU Careggi Hospital, Largo Brambilla, 3, 50134 Florence, Italy;
| | - Valdo Ricca
- Psychiatry Unit, Department of Health Sciences, University of Florence, Largo Brambilla, 3, 50134 Florence, Italy; (L.L.A.); (M.C.S.); (E.C.); (G.C.); (V.R.)
| | - Francesco Rotella
- Psychiatry Unit, Department of Health Sciences, University of Florence, Largo Brambilla, 3, 50134 Florence, Italy; (L.L.A.); (M.C.S.); (E.C.); (G.C.); (V.R.)
| |
Collapse
|
5
|
Lucherini Angeletti L, Cassioli E, Tarchi L, Dani C, Faldi M, Martini R, Ricca V, Castellini G, Rossi E. From early relational experiences to non-suicidal self-injury in anorexia and bulimia nervosa: a structural equation model unraveling the role of impairments in interoception. Eat Weight Disord 2024; 29:22. [PMID: 38528258 DOI: 10.1007/s40519-024-01651-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Accepted: 03/17/2024] [Indexed: 03/27/2024] Open
Abstract
PURPOSE Individuals with anorexia nervosa (AN) and bulimia nervosa (BN) frequently exhibit Non-Suicidal Self-Injury (NSSI), yet their co-occurrence is still unclear. To address this issue, the aim of this study was to elucidate the role of impairments in interoception in explaining the NSSI phenomenon in AN and BN, providing an explanatory model that considers distal (insecure attachment/IA and traumatic childhood experiences/TCEs) and proximal (dissociation and emotional dysregulation) risk factors for NSSI. METHOD 130 patients with AN and BN were enrolled and administered self-report questionnaires to assess the intensity of NSSI behaviors, interoceptive deficits, IA, TCEs, emotional dysregulation and dissociative symptoms. RESULTS Results from structural equation modeling revealed that impairments in interoception acted as crucial mediators between early negative relational experiences and factors that contribute to NSSI in AN and BN, particularly emotional dysregulation and dissociation. Precisely, both aspects of IA (anxiety and avoidance) and various forms of TCEs significantly exacerbated interoceptive deficits, which in turn are associated to the emergence of NSSI behaviors through the increase in levels of dissociation and emotional dysregulation. CONCLUSIONS The proposed model provided a novel explanation of the occurrence of NSSIs in patients with AN and BN by accounting for the significance of interoception. LEVEL OF EVIDENCE Level V-Cross-sectional observational study.
Collapse
Affiliation(s)
- Lorenzo Lucherini Angeletti
- Psychiatry Unit, Department of Health Sciences, University of Florence, Largo Brambilla, 3, 50134, Florence, Italy.
- The Royal's Institute of Mental Health Research & University of Ottawa, Ottawa, ON, Canada.
| | - Emanuele Cassioli
- Psychiatry Unit, Department of Health Sciences, University of Florence, Largo Brambilla, 3, 50134, Florence, Italy
| | - Livio Tarchi
- Psychiatry Unit, Department of Health Sciences, University of Florence, Largo Brambilla, 3, 50134, Florence, Italy
| | - Cristiano Dani
- Psychiatry Unit, Department of Health Sciences, University of Florence, Largo Brambilla, 3, 50134, Florence, Italy
| | - Marco Faldi
- Psychiatry Unit, Department of Health Sciences, University of Florence, Largo Brambilla, 3, 50134, Florence, Italy
| | - Rachele Martini
- Psychiatry Unit, Department of Health Sciences, University of Florence, Largo Brambilla, 3, 50134, Florence, Italy
| | - Valdo Ricca
- Psychiatry Unit, Department of Health Sciences, University of Florence, Largo Brambilla, 3, 50134, Florence, Italy
| | - Giovanni Castellini
- Psychiatry Unit, Department of Health Sciences, University of Florence, Largo Brambilla, 3, 50134, Florence, Italy.
| | - Eleonora Rossi
- Psychiatry Unit, Department of Health Sciences, University of Florence, Largo Brambilla, 3, 50134, Florence, Italy
| |
Collapse
|
6
|
Stonawski V, Mai-Lippold SA, Graap H, Moll GH, Kratz O, Van Doren J, Horndasch S. Processing of food stimuli in anorexia nervosa: An ERP-study comparing adolescents and adults. EUROPEAN EATING DISORDERS REVIEW 2024; 32:281-297. [PMID: 37850962 DOI: 10.1002/erv.3040] [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: 05/03/2023] [Revised: 08/09/2023] [Accepted: 10/01/2023] [Indexed: 10/19/2023]
Abstract
BACKGROUND Anorexia nervosa (AN) is associated with altered processing of disorder-relevant stimuli. Event-related potentials (ERP) - such as the Late Positive Potential (LPP) - give information about the underlying mechanisms of central nervous stimulus processing. METHODS Patients with AN (22 adolescents, 23 adults) and healthy controls (HCs; 17 adolescents, 24 adults) were included. Neutral, low, and high calorie food-images were rated for valence and arousal; EEG activity was recorded and LPPs (early: 350-700 ms; late: 800-1200 ms) were extracted. Effects of patient status, age group, and stimulus category were analyzed via mixed 2 × 2 × 3-AN(C)OVAs. RESULTS Patients with AN rated high calorie stimuli lower in valence and higher in arousal than HCs. Controlling for hunger, food stimuli elicited higher early LPPs than neutral ones in patients and HCs. For the late LPP, patients with AN showed larger amplitudes. CONCLUSION Results suggest a highly automatic attentional bias towards low-calorie foods. Patients with AN seem to have more intense cognitive processing independent of stimulus material. More research is needed to validate and clarify differences between early and late LPP measures as well as the operationalization and relevance of hunger status.
Collapse
Affiliation(s)
- Valeska Stonawski
- Department of Child and Adolescent Mental Health, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Sandra A Mai-Lippold
- Department of Child and Adolescent Mental Health, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
- Department of Clinical and Health Psychology, Institute of Psychology and Education, Ulm University, Ulm, Germany
| | - Holmer Graap
- Department of Psychosomatic Medicine and Psychotherapy, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Gunther H Moll
- Department of Child and Adolescent Mental Health, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Oliver Kratz
- Department of Child and Adolescent Mental Health, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Jessica Van Doren
- Department of Child and Adolescent Mental Health, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Stefanie Horndasch
- Department of Child and Adolescent Mental Health, University Hospital Erlangen, Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| |
Collapse
|
7
|
Mai-Lippold SA, Schultze J, Pollatos O. Interoceptive abilities impairment correlates with emotional eating and taste abnormalities in children with overweight and obesity. Appetite 2024; 194:107182. [PMID: 38154574 DOI: 10.1016/j.appet.2023.107182] [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: 07/20/2023] [Revised: 11/28/2023] [Accepted: 12/21/2023] [Indexed: 12/30/2023]
Abstract
Weight problems in children are associated with emotional eating, which has been linked to interoceptive abilities. Previous research also shows altered olfactory and gustatory perception in children with obesity and overweight. Therefore, we aimed to investigate the connection of alterations in olfactory and gustatory perception to interoceptive abilities and emotional eating among children with obesity and overweight. 23 children with overweight and obesity and age-matched controls with normal weight (12-16 years old) underwent olfactory and gustatory testing. Interoceptive abilities were assessed, focusing on interoceptive accuracy and interoceptive sensibility. Children with overweight and obesity showed significantly higher accuracy for detection of sweet taste, but descriptively lower accuracy for all other taste qualities compared to normal weight children. We found no changes in olfactory abilities in children with overweight and obesity. Emotional eating scores were elevated for children with overweight and obesity, and interoceptive accuracy scores were significantly lower. In both groups, interoceptive accuracy was inversely correlated with emotional eating. Our results support prior findings of altered gustatory abilities in children with overweight and obesity. The observed link between impaired interoceptive processes and heightened emotional eating in this group implies that interventions for overweight in children could benefit from targeting interoceptive abilities. This study provides meaningful grounds for further investigations into the roles of taste, emotional eating, and interoceptive abilities for overweight in children and adolescents.
Collapse
Affiliation(s)
- Sandra A Mai-Lippold
- Clinical and Health Psychology, Institute of Psychology, Ulm University, Germany
| | - Jasmin Schultze
- Clinical and Health Psychology, Institute of Psychology, Ulm University, Germany
| | - Olga Pollatos
- Clinical and Health Psychology, Institute of Psychology, Ulm University, Germany.
| |
Collapse
|
8
|
Datta N, Lock JD. Exploration of interoceptive capabilities in avoidant/restrictive food intake disorder and anorexia nervosa. J Eat Disord 2023; 11:189. [PMID: 37872615 PMCID: PMC10591408 DOI: 10.1186/s40337-023-00914-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 10/17/2023] [Indexed: 10/25/2023] Open
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.
Collapse
Affiliation(s)
- Nandini Datta
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, Stanford, CA, 94305, USA.
| | - James D Lock
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, 401 Quarry Road, Stanford, CA, 94305, USA
| |
Collapse
|
9
|
Choquette EM, Flux MC, Moseman SE, Chappelle S, Naegele J, Upshaw V, Morton A, Paulus MP, Feinstein JS, Khalsa SS. The impact of floatation therapy on body image and anxiety in anorexia nervosa: a randomised clinical efficacy trial. EClinicalMedicine 2023; 64:102173. [PMID: 37936658 PMCID: PMC10626164 DOI: 10.1016/j.eclinm.2023.102173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 08/05/2023] [Accepted: 08/08/2023] [Indexed: 11/09/2023] Open
Abstract
Background Body image disturbance and anxiety are core features of anorexia nervosa (AN), a psychiatric disorder with one of the highest mortality rates. This study examined the efficacy of a novel non-pharmacological treatment, floatation-REST (Reduced Environmental Stimulation Therapy) on body image disturbance and anxiety in inpatients with AN. Methods This parallel group randomised controlled trial compared floatation-REST vs. care as usual in women and girls hospitalised for treatment of AN in Tulsa, Oklahoma, USA. Participants were randomised on a 2:1 ratio to receive eight, twice-weekly, 60-min floatation-REST sessions for 4 weeks, in addition to care as usual, or to receive care as usual. The primary outcome was the average change in body dissatisfaction from pre- to post-float as measured by the Photographic Figure Rating Scale. The secondary outcome was the average change in anxiety from pre- to post-float as measured by the state version of the State Trait Anxiety Inventory. Longitudinal effects of floatation-REST on body dissatisfaction were also examined. All analyses were conducted using the intention-to-treat principle. Planned linear mixed models tested the effect of floatation-REST vs. care as usual. The trial was preregistered (clinicaltrials.govNCT03610451). Findings Between March 16, 2018 and February 25, 2021, 133 participants were screened for eligibility, and 86 were consented. Eighteen were excluded after consent, for a final randomisation sample of 68 participants (45 floatation-REST; 23 care as usual). There were two session by condition interactions on body dissatisfaction (p = 0.00026) and state anxiety (p < 0.0001), such that the floatation-REST group exhibited acute (i.e., pre- to post-session) reductions in body dissatisfaction (floatation-REST group mean change (Δm) = -0.43; 95% CI -0.56 to -0.30, p < 0.0001, Cohen's d = 0.23), and acute reductions in anxiety (floatation-REST group Δm = -15.75; 95% CI -17.95 to -13.56, p < 0.0001, Cohen's d = 1.52); however, the care as usual group exhibited no significant changes. With regard to longitudinal results, there was a significant time by treatment interaction between baseline and immediately post intervention (p = 0.012) and baseline and six-month follow up (p = 0.0019). At immediately post intervention, there was a trending reduction in body dissatisfaction for the floatation-REST group (Δm = -0.41, 95% CI -0.86 to 0.03, p = 0.068) and care as usual group (Δm = 0.61; 95% CI -0.04 to 1.27, p = 0.070). At six-months post-intervention, the floatation-REST group exhibited lower body dissatisfaction (Δm = -0.91; 95% CI -1.37 to -0.45, p = 0.0020, Cohen's d = 0.53) whereas the care as usual group reported no change in body dissatisfaction (Δm = 0.35; 95% CI -0.28 to 0.98, p = 0.96) relative to baseline. There were no adverse events related to the trial during the study. Interpretation Our findings suggest that Floatation-REST decreased body dissatisfaction compared to care as usual acutely after each float session and at six-month follow-up. Floatation-REST has potential utility for the treatment of body image disturbance and anxiety in AN. These results may be limited by some generalisability concerns given the recruitment of a modest sample receiving inpatient treatment at a single site. Funding The William K. Warren Foundation.
Collapse
Affiliation(s)
| | | | - Scott E. Moseman
- Laureate Eating Disorders Program, Saint Francis Health System, Tulsa, Oklahoma, USA
| | | | | | - Valerie Upshaw
- Laureate Institute for Brain Research, Tulsa, Oklahoma, USA
| | - Alexa Morton
- Laureate Institute for Brain Research, Tulsa, Oklahoma, USA
| | - Martin P. Paulus
- Laureate Institute for Brain Research, Tulsa, Oklahoma, USA
- Oxley College of Health Sciences, University of Tulsa, Tulsa, Oklahoma, USA
| | - Justin S. Feinstein
- Laureate Institute for Brain Research, Tulsa, Oklahoma, USA
- Float Research Collective, Kihei, Hawaii, USA
| | - Sahib S. Khalsa
- Laureate Institute for Brain Research, Tulsa, Oklahoma, USA
- Oxley College of Health Sciences, University of Tulsa, Tulsa, Oklahoma, USA
| |
Collapse
|
10
|
Colle L, Hilviu D, Boggio M, Toso A, Longo P, Abbate-Daga G, Garbarini F, Fossataro C. Abnormal sense of agency in eating disorders. Sci Rep 2023; 13:14176. [PMID: 37648816 PMCID: PMC10469170 DOI: 10.1038/s41598-023-41345-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Accepted: 08/24/2023] [Indexed: 09/01/2023] Open
Abstract
The feeling of controlling one's own actions and, through them, impacting the external environment (i.e. Sense of Agency-SoA) can be relevant in the eating disorders (EDs) symptomatology. Yet, it has been poorly investigated. This study aims to implicitly assess SoA exploiting the Sensory Attenuation paradigm in two groups of EDs patients (Anorexia Nervosa Restrictive and Anorexia Nervosa Binge-Purging or Bulimia Nervosa) compared to a control group. We find that controls perceive self-generated stimuli as less intense than other-generated ones showing the classic pattern of sensory attenuation. By contrast, EDs patients show the opposite pattern, with self-generated perceived as more intense than other-generated stimuli. This result indicates an alteration of the implicit component of the feeling of control in EDs patients, thus suggesting a potential implication of these results for the clinical practice and the treatment of EDs symptomatology.
Collapse
Affiliation(s)
- Livia Colle
- Department of Psychology, University of Turin, Turin, Italy
| | - Dize Hilviu
- Department of Psychology, University of Turin, Turin, Italy
| | - Monica Boggio
- Department of Psychology, University of Turin, Turin, Italy
| | - Alessandra Toso
- Department of Neuroscience, University of Turin, AOU Città della Salute e della Scienza, Turin, Italy
| | - Paola Longo
- Department of Neuroscience, University of Turin, AOU Città della Salute e della Scienza, Turin, Italy
| | - Giovanni Abbate-Daga
- Department of Neuroscience, University of Turin, AOU Città della Salute e della Scienza, Turin, Italy
| | | | - Carlotta Fossataro
- MANIBUS Lab, Department of Psychology, University of Turin, Turin, Italy.
| |
Collapse
|
11
|
De la Cruz F, Teed AR, Lapidus RC, Upshaw V, Schumann A, Paulus MP, Bär KJ, Khalsa SS. Central Autonomic Network Alterations in Anorexia Nervosa Following Peripheral Adrenergic Stimulation. BIOLOGICAL PSYCHIATRY. COGNITIVE NEUROSCIENCE AND NEUROIMAGING 2023; 8:720-730. [PMID: 37055325 PMCID: PMC10285030 DOI: 10.1016/j.bpsc.2022.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022]
Abstract
BACKGROUND Anorexia nervosa (AN) is characterized by low body weight, disturbed eating, body image disturbance, anxiety, and interoceptive dysfunction. However, the neural processes underlying these dysfunctions in AN are unclear. This investigation combined an interoceptive pharmacological probe, the peripheral β-adrenergic agonist isoproterenol, with resting-state functional magnetic resonance imaging to examine whether individuals with AN relative to healthy comparison participants show dysregulated neural coupling in central autonomic network brain regions. METHODS Resting-state functional magnetic resonance imaging was performed in 23 weight-restored female participants with AN and 23 age- and body mass index-matched healthy comparison participants before and after receiving isoproterenol infusions. Whole-brain functional connectivity (FC) changes were examined using central autonomic network seeds in the amygdala, anterior insular cortex, posterior cingulate cortex, and ventromedial prefrontal cortex after performing physiological noise correction procedures. RESULTS Relative to healthy comparison participants, adrenergic stimulation caused widespread FC reductions in the AN group between central autonomic network regions and motor, premotor, frontal, parietal, and visual brain regions. Across both groups, these FC changes were inversely associated with trait anxiety (State-Trait Anxiety Inventory-Trait), trait depression (9-item Patient Health Questionnaire), and negative body image perception (Body Shape Questionnaire) measures, but not with changes in resting heart rate. These results were not accounted for by baseline group FC differences. CONCLUSIONS Weight-restored females with AN show a widespread state-dependent disruption of signaling between central autonomic, frontoparietal, and sensorimotor brain networks that facilitate interoceptive representation and visceromotor regulation. Additionally, trait associations between central autonomic network regions and these other brain networks suggest that dysfunctional processing of interoceptive signaling may contribute to affective and body image disturbance in AN.
Collapse
Affiliation(s)
- Feliberto De la Cruz
- Department of Psychosomatic Medicine and Psychotherapy, Jena University Hospital, Jena, Germany
| | - Adam R Teed
- Laureate Institute for Brain Research, Tulsa, Oklahoma
| | - Rachel C Lapidus
- Laureate Institute for Brain Research, Tulsa, Oklahoma; Eating Disorders Center for Treatment and Research, University of California San Diego, San Diego, California
| | | | - Andy Schumann
- Department of Psychosomatic Medicine and Psychotherapy, Jena University Hospital, Jena, Germany
| | - Martin P Paulus
- Laureate Institute for Brain Research, Tulsa, Oklahoma; Oxley College of Health Sciences, University of Tulsa, Tulsa, Oklahoma
| | - Karl-Jürgen Bär
- Department of Psychosomatic Medicine and Psychotherapy, Jena University Hospital, Jena, Germany
| | - Sahib S Khalsa
- Laureate Institute for Brain Research, Tulsa, Oklahoma; Oxley College of Health Sciences, University of Tulsa, Tulsa, Oklahoma.
| |
Collapse
|
12
|
Lucherini Angeletti L, Innocenti M, Felciai F, Ruggeri E, Cassioli E, Rossi E, Rotella F, Castellini G, Stanghellini G, Ricca V, Northoff G. Anorexia nervosa as a disorder of the subcortical-cortical interoceptive-self. Eat Weight Disord 2022; 27:3063-3081. [PMID: 36355249 PMCID: PMC9803759 DOI: 10.1007/s40519-022-01510-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 11/03/2022] [Indexed: 11/12/2022] Open
Abstract
PURPOSE Anorexia nervosa (AN) is characterized by a diminished capacity in perceiving the physiological correlates of interoceptive sensations, namely bodily self-consciousness. Given the neural division of self-processing into interoceptive-, exteroceptive- and mental-self, we hypothesize neural deficits in the interoceptive-processing regions in AN. METHODS To prove this, we reviewed resting state (rs), task and rest-task studies in AN literature. RESULTS Neuronal data demonstrate the following in AN: (i) decreased rs-functional connectivity (rsFC) of subcortical-cortical midline structures (SCMS); (ii) reduced rsFC between medial (default-mode network/DMN and salience network/SN) and lateral (executive-control network/ECN) cortical regions; (iii) decreased rsFC in mainly the regions of the interoceptive-self; (iv) altered activity with overall increased activity in response to sensory/body image stimuli, especially in the regions of the interoceptive-self; (v) lack of a clear task-related distinction between own's and others' body image. CONCLUSION These data may indicate that rs-hypoconnectivity between SCMS, as neural correlate of a reduced intero-exteroceptive integration resulting in self-objectification, might be linked to overall increased activity in interoceptive regions during sensory/body image stimuli in AN, engendering an "anxious bodily self." LEVEL OF EVIDENCE I: Systematic review.
Collapse
Affiliation(s)
- Lorenzo Lucherini Angeletti
- Department of Health Sciences, Psychiatry Unit, University of Florence, Largo G. Alessandro Brambilla 3, 50134, Florence, Italy.
| | - Matteo Innocenti
- Department of Health Sciences, Psychiatry Unit, University of Florence, Largo G. Alessandro Brambilla 3, 50134, Florence, Italy
| | - Federica Felciai
- Department of Health Sciences, Psychiatry Unit, University of Florence, Largo G. Alessandro Brambilla 3, 50134, Florence, Italy
| | - Emanuele Ruggeri
- Department of Health Sciences, Psychiatry Unit, University of Florence, Largo G. Alessandro Brambilla 3, 50134, Florence, Italy
| | - Emanuele Cassioli
- Department of Health Sciences, Psychiatry Unit, University of Florence, Largo G. Alessandro Brambilla 3, 50134, Florence, Italy
| | - Eleonora Rossi
- Department of Health Sciences, Psychiatry Unit, University of Florence, Largo G. Alessandro Brambilla 3, 50134, Florence, Italy
| | | | - Giovanni Castellini
- Department of Health Sciences, Psychiatry Unit, University of Florence, Largo G. Alessandro Brambilla 3, 50134, Florence, Italy
| | - Giovanni Stanghellini
- Department of Health Sciences, Psychology Unit, University of Florence, Florence, Italy
| | - Valdo Ricca
- Department of Health Sciences, Psychiatry Unit, University of Florence, Largo G. Alessandro Brambilla 3, 50134, Florence, Italy
| | - Georg Northoff
- Mental Health Centre, Zhejiang University School of Medicine, Hangzhou, China
- Centre for Cognition and Brain Disorders, Hangzhou Normal University, Hangzhou, China
- The Royal's Institute of Mental Health Research & University of Ottawa, Ottawa, ON, Canada
- Centre for Neural Dynamics, Faculty of Medicine, Brain and Mind Research Institute, University of Ottawa, Ottawa, ON, Canada
| |
Collapse
|
13
|
Malighetti C, Sansoni M, Gaudio S, Matamala-Gomez M, Di Lernia D, Serino S, Riva G. From Virtual Reality to Regenerative Virtual Therapy: Some Insights from a Systematic Review Exploring Inner Body Perception in Anorexia and Bulimia Nervosa. J Clin Med 2022; 11:jcm11237134. [PMID: 36498708 PMCID: PMC9737310 DOI: 10.3390/jcm11237134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/10/2022] [Accepted: 11/20/2022] [Indexed: 12/02/2022] Open
Abstract
Despite advances in our understanding of the behavioral and molecular factors that underlie the onset and maintenance of Eating Disorders (EDs), it is still necessary to optimize treatment strategies and establish their efficacy. In this context, over the past 25 years, Virtual Reality (VR) has provided creative treatments for a variety of ED symptoms, including body dissatisfaction, craving, and negative emotions. Recently, different researchers suggested that EDs may reflect a broader impairment in multisensory body integration, and a particular VR technique-VR body swapping-has been used to repair it, but with limited clinical results. In this paper, we use the results of a systematic review employing PRISMA guidelines that explore inner body perception in EDs (21 studies included), with the ultimate goal to analyze the features of multisensory impairment associated with this clinical condition and provide possible solutions. Deficits in interoception, proprioception, and vestibular signals were observed across Anorexia and Bulimia Nervosa, suggesting that: (a) alteration of inner body perception might be a crucial feature of EDs, even if further research is needed and; (b) VR, to be effective with these patients, has to simulate/modify both the external and the internal body. Following this outcome, we introduce a new therapeutic approach-Regenerative Virtual Therapy-that integrates VR with different technologies and clinical strategies to regenerate a faulty bodily experience by stimulating the multisensory brain mechanisms and promoting self-regenerative processes within the brain itself.
Collapse
Affiliation(s)
- Clelia Malighetti
- Department of Psychology, Università Cattolica del Sacro Cuore, Largo Gemelli 1, 20100 Milan, Italy
| | - Maria Sansoni
- Department of Psychology, Università Cattolica del Sacro Cuore, Largo Gemelli 1, 20100 Milan, Italy
- Correspondence: ; Tel.: +39-02-72-343-863
| | - Santino Gaudio
- Department of Neuroscience, Functional Pharmacology, Uppsala University, Husargatan 3, 75237 Uppsala, Sweden
- Department of Biomedicine and Prevention, University of Rome Tor Vergata, Viale Montpellier 1, 00133 Rome, Italy
| | - Marta Matamala-Gomez
- Department of Psychology, Mind and Behavior Technological Center, University of Milano-Bicocca, Piazza dell’Ateneo Nuovo 1, 20126 Milan, Italy
| | - Daniele Di Lernia
- Department of Psychology, Università Cattolica del Sacro Cuore, Largo Gemelli 1, 20100 Milan, Italy
| | - Silvia Serino
- Department of Psychology, Università Cattolica del Sacro Cuore, Largo Gemelli 1, 20100 Milan, Italy
| | - Giuseppe Riva
- Applied Technology for Neuro-Psychology Lab, IRCCS Istituto Auxologico Italiano, Via Magnasco 2, 20149 Milan, Italy
- Humane Technology Lab, Università Cattolica del Sacro Cuore, Largo Gemelli 1, 20100 Milan, Italy
| |
Collapse
|
14
|
Schillings C, Karanassios G, Schulte N, Schultchen D, Pollatos O. The Effects of a 3-Week Heartbeat Perception Training on Interoceptive Abilities. Front Neurosci 2022; 16:838055. [PMID: 35615275 PMCID: PMC9124832 DOI: 10.3389/fnins.2022.838055] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2021] [Accepted: 04/07/2022] [Indexed: 11/13/2022] Open
Abstract
Recent studies showed promising short-term effects of heartbeat perception training on interoceptive abilities. Research on the effects of heartbeat perception training on interoceptive abilities over time is sparse. Therefore, the aim of this study was to examine the short-term effects and the effects of a 3-week heartbeat perception training over time on interoceptive abilities, namely, cardiac interoceptive accuracy (IAc) and interoceptive sensibility (IS). A total of 40 healthy participants were randomized to the intervention group (n = 20) or the control group (n = 20). The intervention group conducted three cardiac biofeedback sessions (one per week) at the laboratory, whereas the control group watched a documentary instead. Interoceptive abilities were assessed via the heartbeat perception task (IAc) and confidence ratings (IS) at baseline, after each laboratory session, and 1 week after the last session (post-measurement). IAc was significantly increased in the intervention group compared to the control group after the first training session (short-term effect). There were no significant improvements in IS due to the first session, and neither on IAc nor IS over time. Descriptive trends of improved interoceptive abilities over time were found in both groups. Single session of heartbeat perception training seems to be a promising approach to improve IAc. Future research should further investigate the long-term effects of diverse heartbeat perception training varying in frequency and intensity of the training sessions in diverse samples aiming to improve interoceptive abilities.
Collapse
Affiliation(s)
- Christine Schillings
- Department of Clinical and Health Psychology, Faculty of Engineering, Computer Science and Psychology, Institute of Psychology and Education, University of Ulm, Ulm, Germany
- *Correspondence: Christine Schillings,
| | - Georgios Karanassios
- Department of Clinical and Health Psychology, Faculty of Engineering, Computer Science and Psychology, Institute of Psychology and Education, University of Ulm, Ulm, Germany
| | - Niklas Schulte
- Department of Work and Organizational Psychology, Faculty of Engineering, Compurter Science and Psychology, Institute of Psychology and Education, University of Ulm, Ulm, Germany
| | - Dana Schultchen
- Department of Clinical and Health Psychology, Faculty of Engineering, Computer Science and Psychology, Institute of Psychology and Education, University of Ulm, Ulm, Germany
| | - Olga Pollatos
- Department of Clinical and Health Psychology, Faculty of Engineering, Computer Science and Psychology, Institute of Psychology and Education, University of Ulm, Ulm, Germany
| |
Collapse
|
15
|
Sader M, Williams JHG, Waiter GD. A meta-analytic investigation of grey matter differences in anorexia nervosa and autism spectrum disorder. EUROPEAN EATING DISORDERS REVIEW 2022; 30:560-579. [PMID: 35526083 PMCID: PMC9543727 DOI: 10.1002/erv.2915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 04/21/2022] [Indexed: 11/11/2022]
Abstract
Recent research reports Anorexia Nervosa (AN) to be highly dependent upon neurobiological function. Some behaviours, particularly concerning food selectivity are found in populations with both Autism Spectrum Disorder (ASD) and AN, and there is a proportionally elevated number of anorexic patients exhibiting symptoms of ASD. We performed a systematic review of structural MRI literature with the aim of identifying common structural neural correlates common to both AN and ASD. Across 46 ASD publications, a meta‐analysis of volumetric differences between ASD and healthy controls revealed no consistently affected brain regions. Meta‐analysis of 23 AN publications revealed increased volume within the orbitofrontal cortex and medial temporal lobe, and adult‐only AN literature revealed differences within the genu of the anterior cingulate cortex. The changes are consistent with alterations in flexible reward‐related learning and episodic memory reported in neuropsychological studies. There was no structural overlap between ASD and AN. Findings suggest no consistent neuroanatomical abnormality associated with ASD, and evidence is lacking to suggest that reported behavioural similarities between those with AN and ASD are due to neuroanatomical structural similarities. Findings related to neuroanatomical structure in AN/ASD demonstrate overlap and require revisiting. Meta‐analytic findings show structural increase/decrease versus healthy controls (LPFC/MTL/OFC) in AN, but no clusters found in ASD. The neuroanatomy associated with ASD is inconsistent, but findings in AN reflect condition‐related impairment in executive function and sociocognitive behaviours.
Collapse
Affiliation(s)
- Michelle Sader
- Translational Neuroscience, Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK
| | - Justin H G Williams
- Translational Neuroscience, Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK
| | - Gordon D Waiter
- Biomedical Imaging Centre, Institute of Medical Sciences, University of Aberdeen, Aberdeen, UK
| |
Collapse
|
16
|
Food Consciousness Intervention Improves Interoceptive Sensitivity and Expression of Exteroception in Women. Nutrients 2022; 14:nu14030450. [PMID: 35276809 PMCID: PMC8837977 DOI: 10.3390/nu14030450] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Revised: 01/06/2022] [Accepted: 01/10/2022] [Indexed: 02/05/2023] Open
Abstract
The perception of the body’s internal state (interoception) and the perception and processing of environmental sensory stimuli (exteroception) act together to modulate adaptive behaviour, including eating behaviour, and are related to bodyweight control. This study evaluated the impact of the Food and Nutrition Education Program with Sensory and Cognitive Exercises on interoceptive sensitivity and on the expression of exteroceptive perception in women who experienced difficulty in controlling their body weight. Thirty-seven women were randomized into two groups and evaluated at two moments: before and after the intervention or before and after a 3- to 4-week waiting period. A heartbeat tracking task was used for interoception evaluation. Participants were asked to write a text describing three foods after tasting them for exteroception evaluation. After the intervention, the participants showed an increase in interoceptive sensitivity, and an increase in the expression of exteroceptive stimuli perception through a semantic assessment of their writing related to the tasting experience. In addition, the results point to a possible connection between the mechanisms governing interoception and exteroception. This work brings important contributions to the search for strategies capable of promoting the perception and integration of physiological and environmental stimuli in food consumption.
Collapse
|
17
|
Preferred music listening is associated with perceptual learning enhancement at the expense of self-focused attention. Psychon Bull Rev 2022; 29:2108-2121. [PMID: 35668293 PMCID: PMC9722857 DOI: 10.3758/s13423-022-02127-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/16/2022] [Indexed: 12/14/2022]
Abstract
Can preferred music listening improve following attentional and learning performances? Here we suggest that this may be the case. In Experiment 1, following preferred and non-preferred musical-piece listening, we recorded electrophysiological responses to an auditory roving-paradigm. We computed the mismatch negativity (MMN - the difference between responses to novel and repeated stimulation), as an index of perceptual learning, and we measured the correlation between trial-by-trial EEG responses and the fluctuations in Bayesian Surprise, as a quantification of the neural attunement with stimulus informational value. Furthermore, during music listening, we recorded oscillatory cortical activity. MMN and trial-by-trial correlation with Bayesian surprise were significantly larger after subjectively preferred versus non-preferred music, indicating the enhancement of perceptual learning. The analysis on oscillatory activity during music listening showed a selective alpha power increased in response to preferred music, an effect often related to cognitive enhancements. In Experiment 2, we explored whether this learning improvement was realized at the expense of self-focused attention. Therefore, after preferred versus non-preferred music listening, we collected Heart-Beat Detection (HBD) accuracy, as a measure of the attentional focus toward the self. HBD was significantly lowered following preferred music listening. Overall, our results suggest the presence of a specific neural mechanism that, in response to aesthetically pleasing stimuli, and through the modulation of alpha oscillatory activity, redirects neural resources away from the self and toward the environment. This attentional up-weighting of external stimuli might be fruitfully exploited in a wide area of human learning activities, including education, neurorehabilitation and therapy.
Collapse
|
18
|
Effects of a Single Yoga Session on Cardiac Interoceptive Accuracy and Emotional Experience. Brain Sci 2021; 11:brainsci11121572. [PMID: 34942874 PMCID: PMC8699040 DOI: 10.3390/brainsci11121572] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 11/24/2021] [Accepted: 11/26/2021] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND There is an increasing body of research supporting the idea that cardiac interoceptive accuracy (IAc) can be improved by training. Findings concerning the effects of a single yoga session on IAc and the related construct emotional experience are sparse. The aim of this study was to examine if a single yoga session increases IAc and improves emotional experience. METHODS 137 students were randomly assigned to a 20-min yoga session (n = 47), an endurance session (n = 46), or an inactive control condition (n = 44). IAc and emotional experience were assessed before and after the sessions. RESULTS There were no significant changes in IAc, or positive and negative affect. IAc at baseline and the change in positive effect were found as predictors for IAc after the yoga session. CONCLUSION A 20-min yoga session seems to be not applicable to improve IAc and emotional experience. Future studies should investigate long-term interventions and diverse healthy and clinical populations.
Collapse
|
19
|
The Effects of a Standardized Cognitive-Behavioural Therapy and an Additional Mindfulness-Based Training on Interoceptive Abilities in a Depressed Cohort. Brain Sci 2021; 11:brainsci11101355. [PMID: 34679419 PMCID: PMC8533790 DOI: 10.3390/brainsci11101355] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/07/2021] [Accepted: 10/11/2021] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Interoceptive accuracy and sensibility are decreased in depressive samples. However, different studies showed that cognitive-behavioural therapy (CBT) and mindfulness interventions are promising approaches to improve interoceptive abilities. Based on these findings, the study aims to investigate the pre-post effect of CBT in a depressive sample. Additionally, we examined the effect of mindfulness-based stress reduction (MBSR) training in the context of CBT. METHODS Sixty depressive patients were investigated over four weeks, with two conditions-CBT vs. CBT + MBSR. Further, the changes in interoceptive abilities (interoceptive accuracy and sensibility) of the depressive patients were compared to baseline data of healthy controls. RESULTS The depressive patients showed significantly higher levels of depression and lower mindfulness and interoceptive abilities than healthy controls. The depressive sample showed a significant decrease in depressive symptoms and increased mindfulness and interoceptive abilities after CBT. Lastly, depressive patients of the CBT + MBSR condition did not differ from those who only received CBT in the levels of depression, mindfulness or interoceptive abilities over the time course. DISCUSSION This study demonstrates a positive effect of CBT on interoceptive abilities in a depressive sample. It is shown that the depressive sample did not profit from additional mindfulness training. It can be concluded that CBT is an efficient treatment, resulting in increased interoceptive abilities. Unexpectedly, the combination of CBT and MBSR has no additional effect on these changes. Future studies should investigate the effect of MBSR as a stand-alone therapy.
Collapse
|
20
|
Young HA, Davies J, Freegard G, Benton D. Nonsuicidal Self-Injury Is Associated With Attenuated Interoceptive Responses to Self-Critical Rumination. Behav Ther 2021; 52:1123-1136. [PMID: 34452667 DOI: 10.1016/j.beth.2021.02.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 02/17/2021] [Accepted: 02/22/2021] [Indexed: 10/22/2022]
Abstract
Nonsuicidal self-injury (NSSI) is a prevalent and dangerous behavior. Those with a history of NSSI often report high levels of self-critical rumination (SCR), a form of negatively valenced introspective self-referential processing. It is plausible that this overly analytical style of relating to the self might hinder the ability to process interoceptive signals, thereby increasing the capacity to engage in behaviors that cause bodily harm. Two studies investigated whether trait or state SCR influenced aspects of interoception in those with and without a history of NSSI. In Study 1 (N = 180), irrespective of NSSI history, trait SCR was associated with finding attending to the heartbeat unpleasant. However, no associations were observed for interoceptive confidence, or metacognitive insight into their interoceptive abilities (confidence-accuracy correspondence). Trait SCR was associated with having higher interoceptive accuracy, but only in those without a history of NSSI. In Study 2 (N = 98), irrespective of NSSI history, state self-criticism led to a more negative interoceptive valence, and reduced participants' metacognitive insight. In those without a history of NSSI, state self-criticism also increased interoceptive accuracy-an effect attenuated in those with NSSI. These findings suggest that those with NSSI are characterized by a blunted interoceptive response to negatively valenced self-focused attention.
Collapse
|
21
|
Abstract
OBJECTIVE Maintenance of bodily homeostasis relies on interoceptive mechanisms in the brain to predict and regulate bodily state. While altered neural activation during interoception in specific psychiatric disorders has been reported in many studies, it is unclear whether a common neural locus underpins transdiagnostic interoceptive differences. METHODS The authors conducted a meta-analysis of neuroimaging studies comparing patients with psychiatric disorders with healthy control subjects to identify brain regions exhibiting convergent disrupted activation during interoception. Bibliographic, neuroimaging, and preprint databases through May 2020 were searched. A total of 306 foci from 33 studies were extracted, which included 610 control subjects and 626 patients with schizophrenia, bipolar or unipolar depression, posttraumatic stress disorder, anxiety, eating disorders, or substance use disorders. Data were pooled using a random-effects model implemented by the activation likelihood estimation algorithm. The preregistered primary outcome was the neuroanatomical location of the convergence of peak voxel coordinates. RESULTS Convergent disrupted activation specific to the left dorsal mid-insula was found (Z=4.47, peak coordinates: -36, -2, 14; volume: 928 mm3). Studies directly contributing to the cluster included patients with bipolar disorder, anxiety, major depression, anorexia, and schizophrenia, assessed with task probes including pain, hunger, and interoceptive attention. A series of conjunction analyses against extant meta-analytic data sets revealed that this mid-insula cluster was anatomically distinct from brain regions involved in affective processing and from regions altered by psychological or pharmacological interventions for affective disorders. CONCLUSIONS These results reveal transdiagnostic, domain-general differences in interoceptive processing in the left dorsal mid-insula. Disrupted mid-insular activation may represent a neural marker of psychopathology and a putative target for novel interventions.
Collapse
Affiliation(s)
- Camilla L Nord
- Medical Research Council Cognition and Brain Sciences Unit (Nord, Lawson, Dalgleish) and Department of Psychology (Lawson), University of Cambridge, Cambridge, U.K.; and Cambridgeshire and Peterborough National Health Service Foundation Trust, Cambridge, U.K. (Dalgleish)
| | - Rebecca P Lawson
- Medical Research Council Cognition and Brain Sciences Unit (Nord, Lawson, Dalgleish) and Department of Psychology (Lawson), University of Cambridge, Cambridge, U.K.; and Cambridgeshire and Peterborough National Health Service Foundation Trust, Cambridge, U.K. (Dalgleish)
| | - Tim Dalgleish
- Medical Research Council Cognition and Brain Sciences Unit (Nord, Lawson, Dalgleish) and Department of Psychology (Lawson), University of Cambridge, Cambridge, U.K.; and Cambridgeshire and Peterborough National Health Service Foundation Trust, Cambridge, U.K. (Dalgleish)
| |
Collapse
|
22
|
Demartini B, Goeta D, Marchetti M, Bertelli S, Anselmetti S, Cocchi A, Ischia M, Gambini O. The effect of a single yoga class on interoceptive accuracy in patients affected by anorexia nervosa and in healthy controls: a pilot study. Eat Weight Disord 2021; 26:1427-1435. [PMID: 32613441 DOI: 10.1007/s40519-020-00950-3] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Accepted: 06/22/2020] [Indexed: 11/28/2022] Open
Abstract
PURPOSE To evaluate interoceptive accuracy (Iac) before and after a single yoga class in a population of patients with anorexia nervosa (AN) and in a population of healthy controls (HC). METHODS Fifteen patients with AN and twenty HC were included in the study. All individuals participated in a single yoga class. Before (T0) and after (T1) the yoga class, they underwent the heartbeat detection task for the evaluation of Iac. At T0, all participants also underwent a psychological assessment, including evaluation of depression, anxiety, body awareness, alexithymia, self-objectification and eating disorders psychopathology. RESULTS Patients with AN had lower Iac than HC at T0. A significant improvement of Iac at T1 was found in the HC group but not in the group of patients with AN. CONCLUSION We infer that our findings might be linked to the fact that patients with AN, differently from HC, did not properly attend to their bodies, despite the yoga class. This hypothesis is consistent with previous studies showing that patients with AN have decreased Iac during self-focused behavior because of body-related avoidance. Moreover, we surmise that HC might be keener to improve their perception of internal body signals even after a single yoga class because their emotional awareness system is not impaired. Patients with AN, on the contrary, may have an intrinsic impairment of their emotional awareness, making it harder for them to modulate their Iac. LEVEL OF EVIDENCE Level III, evidence obtained from well-designed cohort or case-control analytical studies.
Collapse
Affiliation(s)
- Benedetta Demartini
- Dipartimento Di Scienze Della Salute, Università Degli Studi Di Milano, A.O. San Paolo, via A. di Rudinì, 8, 20100, Milan, Italy. .,Unità Di Psichiatria II, Presidio San Paolo, ASST Santi Paolo E Carlo, Milan, Italy. .,"Aldo Ravelli" Research Center for Neurotechnology and Experimental Brain Therapeutics, University of Milan, Milan, Italy.
| | - Diana Goeta
- Dipartimento Di Scienze Della Salute, Università Degli Studi Di Milano, A.O. San Paolo, via A. di Rudinì, 8, 20100, Milan, Italy.,Unità Di Psichiatria II, Presidio San Paolo, ASST Santi Paolo E Carlo, Milan, Italy.,"Aldo Ravelli" Research Center for Neurotechnology and Experimental Brain Therapeutics, University of Milan, Milan, Italy
| | - Mattia Marchetti
- Dipartimento Di Scienze Della Salute, Università Degli Studi Di Milano, A.O. San Paolo, via A. di Rudinì, 8, 20100, Milan, Italy
| | - Sara Bertelli
- Dipartimento Di Scienze Della Salute, Università Degli Studi Di Milano, A.O. San Paolo, via A. di Rudinì, 8, 20100, Milan, Italy
| | | | - Alessandra Cocchi
- Integral Yoga International, Satchidananda Ashram (VA), Virginia, USA
| | | | - Orsola Gambini
- Dipartimento Di Scienze Della Salute, Università Degli Studi Di Milano, A.O. San Paolo, via A. di Rudinì, 8, 20100, Milan, Italy.,Unità Di Psichiatria II, Presidio San Paolo, ASST Santi Paolo E Carlo, Milan, Italy.,"Aldo Ravelli" Research Center for Neurotechnology and Experimental Brain Therapeutics, University of Milan, Milan, Italy
| |
Collapse
|
23
|
Riva G, Malighetti C, Serino S. Virtual reality in the treatment of eating disorders. Clin Psychol Psychother 2021; 28:477-488. [PMID: 34048622 PMCID: PMC8362149 DOI: 10.1002/cpp.2622] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 05/07/2021] [Accepted: 05/21/2021] [Indexed: 12/19/2022]
Abstract
Over the last 25 years, virtual reality (VR) has offered innovative solutions for targeting different key symptoms of eating disorders: from craving to negative emotions, from attentional biases to body dissatisfaction. The present narrative review assesses the existing literature in these areas trying to identify their different levels of clinical evidence. Specifically, the review presents four clinical approaches based upon VR and their implications in the treatment of eating disorders: VR cue exposure, VR reference frame shifting, VR for correcting body distortions and attentional biases. In general, existing findings demonstrate the clinical value of VR. On one side, the present review suggests that two VR-based techniques-VR exposure and reference frame shifting-have a significant research support and provide a possible advantage over traditional cognitive-behavioural therapy (CBT) for bulimia nervosa and binge eating disorder. On the other side, two emerging VR applications-multisensory body illusions and the use of VR for the modification of attentional biases-even if supported by preliminary data still need further research.
Collapse
Affiliation(s)
- Giuseppe Riva
- Applied Technology for Neuro‐Psychology Lab.Istituto Auxologico ItalianoMilanItaly
- Humane Technology Lab.Università Cattolica del Sacro CuoreMilanItaly
| | - Clelia Malighetti
- Humane Technology Lab.Università Cattolica del Sacro CuoreMilanItaly
| | - Silvia Serino
- Humane Technology Lab.Università Cattolica del Sacro CuoreMilanItaly
| |
Collapse
|
24
|
Carey M, Crucianelli L, Preston C, Fotopoulou A. The role of affective touch in whole-body embodiment remains equivocal. Conscious Cogn 2021; 87:103059. [PMID: 33296853 PMCID: PMC7116849 DOI: 10.1016/j.concog.2020.103059] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 11/20/2020] [Accepted: 11/22/2020] [Indexed: 12/13/2022]
Abstract
Previous studies have highlighted that affective touch delivered at slow velocities (1-10 cm/s) enhances body-part embodiment during multisensory illusions, yet its role towards whole-body embodiment is less established. Across two experiments, we investigated the role of affective touch towards subjective embodiment of a whole mannequin body within the full body illusion, amongst healthy females. Participants perceived affective touch to be more pleasant than non-affective touch, but this did not enhance subjective embodiment within the illusion and no interaction between synchrony (Experiment 1), or congruency (Experiment 2), and the velocity of touch was observed. Finally, the perceived pleasantness of touch was not modulated by subthreshold eating disorder psychopathology, as measured by means of a self-report questionnaire. Therefore, the present findings suggest that enhancement of embodiment due to affective touch may be body-part specific, and not generalise to greater ownership towards a whole body.
Collapse
Affiliation(s)
- Mark Carey
- Department of Psychology, University of York, York, United Kingdom
| | - Laura Crucianelli
- Department of Clinical, Educational and Health Psychology, University College London, United Kingdom
- Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden
| | | | - Aikaterini Fotopoulou
- Department of Clinical, Educational and Health Psychology, University College London, United Kingdom
| |
Collapse
|
25
|
Weineck F, Hauke G, Lindemann H, Lachenmeir K, Schnebel A, Karačić M, Meule A, Voderholzer U, Pollatos O. Using bodily postures in the treatment of anorexia nervosa: Effects of power posing on interoception and affective states. EUROPEAN EATING DISORDERS REVIEW 2020; 29:216-231. [PMID: 33252788 DOI: 10.1002/erv.2813] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 11/03/2020] [Accepted: 11/13/2020] [Indexed: 12/26/2022]
Abstract
OBJECTIVE Power posing involves the adoption of an expansive bodily posture. This study examined whether power posing could benefit individuals with anorexia nervosa (AN) and women with normal weight in regards to interoceptive ability and affective states. METHOD Participants included 50 inpatients and outpatients with AN as well as 51 normal-weight women. Interoceptive accuracy (IAcc), measured by the heartbeat tracking task and interoceptive sensibility (IS), measured by confidence ratings, were assessed at baseline, after a single power posing session and after 1 week of daily training. Also, the short-term effects of power posing on subjective feelings of dominance, pleasantness, and arousal were investigated. RESULTS Both groups increased in their IAcc after one power posing session. Also, there was a significant main effect of time on feelings of dominance and pleasantness in the short-term. Women with AN displayed lower levels of IS, dominance, and pleasantness as well as higher levels of arousal than women without AN. DISCUSSION These findings suggest that power posing has the potential to increase IAcc, subjective feelings of power and pleasant affect in the short-term. Further research should investigate which mechanisms foster the effectiveness of this intervention to tailor it to the needs of women with AN.
Collapse
Affiliation(s)
- Felicitas Weineck
- Department of Clinical and Health Psychology, Ulm University, Ulm, Germany
| | - Gernot Hauke
- Department of Clinical and Health Psychology, Ulm University, Ulm, Germany
| | - Hanna Lindemann
- Department of Physical Medicine and Rehabilitation, Ludwig Maximilian University, Munich, Germany
| | - Karin Lachenmeir
- Treatment Center for Eating Disorders (TCE), Dritter Orden Hospital, Munich, Germany
| | | | | | - Adrian Meule
- Schön Klinik Roseneck, Prien am Chiemsee, Germany
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig Maximilian University, Munich, Germany
| | - Ulrich Voderholzer
- Schön Klinik Roseneck, Prien am Chiemsee, Germany
- Department of Psychiatry and Psychotherapy, University Freiburg, Freiburg, Germany
| | - Olga Pollatos
- Department of Clinical and Health Psychology, Ulm University, Ulm, Germany
| |
Collapse
|
26
|
Jones A, Silas J, Todd J, Stewart A, Acree M, Coulson M, Mehling WE. Exploring the Multidimensional Assessment of Interoceptive Awareness in youth aged 7-17 years. J Clin Psychol 2020; 77:661-682. [PMID: 33035384 DOI: 10.1002/jclp.23067] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 09/09/2020] [Accepted: 09/19/2020] [Indexed: 12/30/2022]
Abstract
OBJECTIVE This study aimed to adapt the Multidimensional Assessment of Interoceptive Awareness (MAIA) questionnaire for younger respondents. METHOD The language of the MAIA was revised and children aged 7-10 years (n = 212) and adolescents aged 11-17 years (n = 217) completed the questionnaire. RESULTS The original eight-factor model was tested for fit using confirmatory factor analysis. The model had an acceptable fit in the total sample and younger subsample and overall fit in the older subsample was adequate following modification. Internal consistency was good, except for the Noticing, Not-Distracting and Not-Worrying scales. Results also demonstrated a negative linear relationship between the trusting scale and age, suggesting that youths may lose trust in their body as they age. CONCLUSION The adapted MAIA can be used with a younger population and, depending on the research question, individual MAIA scales may be selected. The survey is available at https://osher.ucsf.edu/maia.
Collapse
Affiliation(s)
- Alexander Jones
- Department of Psychology, School of Science and Technology, Middlesex University, London, UK
| | - Jonathan Silas
- Department of Psychology, School of Science and Technology, Middlesex University, London, UK
| | - Jennifer Todd
- School of Psychology and Sport Science, Faculty of Science and Engineering, Anglia Ruskin University, Cambridge, UK
| | - Anita Stewart
- Institute for Health and Aging, School of Nursing, University of California, San Francisco, California, USA
| | - Michael Acree
- Osher Center for Integrative Medicine, University of California, San Francisco, California, USA
| | - Mark Coulson
- School of Psychology, Faculty of Social Sciences, University of East Anglia, UK
| | - Wolf E Mehling
- Osher Center for Integrative Medicine, University of California, San Francisco, California, USA.,Department of Family and Community Medicine, University of California, San Francisco, California, USA
| |
Collapse
|
27
|
|
28
|
Kinnaird E, Stewart C, Tchanturia K. Interoception in Anorexia Nervosa: Exploring Associations With Alexithymia and Autistic Traits. Front Psychiatry 2020; 11:64. [PMID: 32153442 PMCID: PMC7047099 DOI: 10.3389/fpsyt.2020.00064] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/03/2019] [Accepted: 01/24/2020] [Indexed: 12/31/2022] Open
Abstract
BACKGROUND Previous research on whether interoception is altered in anorexia nervosa (AN) using the heartbeat tracking task has yielded inconsistent results. However, no previous research has examined whether interoception is associated with alexithymia and autistic traits in AN, conditions which are more prevalent in this population and thought to be related to performance in this task. The aim of this study was to explore whether altered interoception in AN is associated with alexithymia and autistic traits. METHODS We assessed interoceptive accuracy using the heartbeat tracking task in n = 37 people with AN, and n = 37 age and gender matched healthy controls (HC), and explored within the AN group if interoceptive accuracy was related to self-rated alexithymia or autistic traits. We also assessed self-reported interoceptive ability, and the relationship between subjective and actual performance. RESULTS Heartbeat tracking task performance was not found to be altered in the AN group compared to the HC group. However, confidence ratings in task performance in the AN group were lower compared to the HC group. Unlike the HC group, confidence ratings in the AN group did not correlate with task performance. Within the AN group there was no relationship between interoceptive accuracy, alexithymia, and autistic traits, after controlling for the potential confounders of anxiety and depression. There was a relationship between confidence ratings and illness severity in the AN group. CONCLUSION The results found no differences between heartbeat tracking task performance in people with AN compared to HC. There was no association between task performance, alexithymia and autistic traits in AN. Results do suggest that people with AN exhibit lowered confidence in their task performance, and that they may lack insight into this performance compared to HC. The findings are discussed in the context of potential significant limitations of the heartbeat tracking task, with recommendations for future research into interoception in AN.
Collapse
Affiliation(s)
| | - Catherine Stewart
- Maudsley Centre for Child and Adolescent Eating Disorders, South London and Maudsley NHS Foundation Trust, London, United Kingdom
| | - Kate Tchanturia
- Eating Disorders, South London and Maudsley NHS Foundation Trust, London, United Kingdom
- Department of Psychology, Ilia State University, Tbsili, Georgia
| |
Collapse
|
29
|
Ho JT, Preller KH, Lenggenhager B. Neuropharmacological modulation of the aberrant bodily self through psychedelics. Neurosci Biobehav Rev 2020; 108:526-541. [DOI: 10.1016/j.neubiorev.2019.12.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2019] [Revised: 11/18/2019] [Accepted: 12/04/2019] [Indexed: 12/13/2022]
|
30
|
My body, your emotions: Viscerosomatic modulation of facial expression discrimination. Biol Psychol 2019; 149:107779. [PMID: 31644926 DOI: 10.1016/j.biopsycho.2019.107779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 09/28/2019] [Accepted: 09/28/2019] [Indexed: 11/24/2022]
Abstract
Interoception reflects the ability to observe one's innermost bodily states. Here, we assessed whether interoceptive accuracy (IA) is related to the empathic ability to discriminate others' emotions. Participants (N = 111) completed a heartbeat tracking task, as well as an emotional go/no-go task with fearful and disgusted faces. Empathic facial mimicry during the go/no-go task was measured using electromyography (EMG) of the Corrugator Supercilii muscle. Higher IA was associated with higher perceptual sensitivity for emotional faces but was unrelated to response bias. Individuals higher in IA had stronger coupling between facial EMG and task performance. IA and facial EMG were associated with Go but not with NoGo trials, consistent with a specific modulation of perceptual sensitivity. These results suggest that tuning into one's own viscerosomatic signals relates to empathic mimicry and perception of others' emotional states.
Collapse
|
31
|
Gibson J. Mindfulness, Interoception, and the Body: A Contemporary Perspective. Front Psychol 2019; 10:2012. [PMID: 31572256 PMCID: PMC6753170 DOI: 10.3389/fpsyg.2019.02012] [Citation(s) in RCA: 99] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 08/16/2019] [Indexed: 12/18/2022] Open
Abstract
Mindfulness is often used as an umbrella term to characterize a large number of practices, processes, and characteristics. Critics argue that this broad definition has led to misinformation, misunderstanding, and a general lack of methodologically rigorous research. Some of the confusion surrounding mindfulness is also believed to stem from an undifferentiated use of the term mindfulness and meditation. Mindfulness and all other forms of meditation have been shown to modulate the insula, which is the primary hub for interoception. Some have argued that interoception is foundational to mindfulness and may be the primary mechanism by which one benefits from the practice. However, much like the mindfulness literature, interoception remains broadly defined often without precision and with domain-specific meanings and implications. Research demonstrates that the insula and surrounding neural circuits are believed to be responsible for a number of other functions beyond interoception including attention, awareness, and all subjective experiences, much of which has been linked to the mindfulness literature. It has been assumed that mindfulness produces these neuroplasticity and functional effects. There is evidence that mindfulness and some of its benefits may be better described as increased interoception as a result of the neuroplasticity changes in the insula, and the development of the insula and surrounding neural circuits may cultivate dispositional mindfulness. The purposes of this article are to (1) highlight that it may be more accurate to link many of the identified benefits in the mindfulness literature to interoception and its neurological correlates and (2) propose attentional style as a means to clarify some of the confusion surrounding mindfulness, interoception, and meditation. Different meditations require different attentional styles. Attention can be analogous to a focal point with each focal point providing a unique perspective. Given that all meditative techniques modulate the insula, each meditation can provide a unique perspective from which to investigate complex interoceptive signals that may be unavailable from other meditative traditions. It may prove more useful to anchor scientific findings in the concrete body as a means to investigate those rather than a set of abstract, broadly defined meditative techniques.
Collapse
Affiliation(s)
- Jonathan Gibson
- Department of Humanities and Social Sciences, South Dakota School of Mines and Technology, Rapid City, SD, United States
| |
Collapse
|
32
|
Gao Q, Ping X, Chen W. Body Influences on Social Cognition Through Interoception. Front Psychol 2019; 10:2066. [PMID: 31551892 PMCID: PMC6746904 DOI: 10.3389/fpsyg.2019.02066] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Accepted: 08/26/2019] [Indexed: 12/13/2022] Open
Affiliation(s)
- Qiyang Gao
- Department of Psychology, Shaoxing University, Shaoxing, China
- Center for Brain, Mind and Education, Shaoxing University, Shaoxing, China
| | - Xianjie Ping
- Center for Brain, Mind and Education, Shaoxing University, Shaoxing, China
| | - Wei Chen
- Department of Psychology, Shaoxing University, Shaoxing, China
- Center for Brain, Mind and Education, Shaoxing University, Shaoxing, China
- Interdisciplinary Center for Philosophy and Cognitive Sciences, Renmin University of China, Beijing, China
| |
Collapse
|
33
|
Lutz AP, Schulz A, Voderholzer U, Koch S, van Dyck Z, Vögele C. Enhanced cortical processing of cardio-afferent signals in anorexia nervosa. Clin Neurophysiol 2019; 130:1620-1627. [DOI: 10.1016/j.clinph.2019.06.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2018] [Revised: 06/14/2019] [Accepted: 06/25/2019] [Indexed: 12/11/2022]
|
34
|
Weineck F, Messner M, Hauke G, Pollatos O. Improving interoceptive ability through the practice of power posing: A pilot study. PLoS One 2019; 14:e0211453. [PMID: 30730938 PMCID: PMC6366763 DOI: 10.1371/journal.pone.0211453] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Accepted: 01/15/2019] [Indexed: 12/20/2022] Open
Abstract
Interoception refers to the detection and perception of signals from the inner body. Deficits in this domain have been linked to psychopathologies, prompting the search for strategies to improve this ability. Preliminary studies have shown that interoception could be enhanced through the manipulation of subjective feelings of power. We tested the effects of adopting powerful postures on different facets of interoception. Firstly, we measured the impact of a single power posing session on interoceptive ability in 41 healthy females. Then, the same participants were randomly assigned to two conditions (daily power posing practice vs. no practice). After one week the conditions alternated. Interoceptive accuracy, measured by the heartbeat tracking task, interoceptive sensibility, measured by the Body Perception Questionnaire (BPQ) and confidence ratings, as well as subjective feelings of power were assessed at baseline, after a single power posing session and after one week of training. A single power posing session significantly increased individuals' interoceptive accuracy. Also, power posing reduced individuals' scores on the BPQ after one week of daily practice and increased subjective feelings of power after one session and one week of daily practice. These findings suggest that adopting powerful postures has the potential to increase interoceptive accuracy, as well as subjective feelings of power, and to reduce interoceptive sensibility, measured by questionnaire.
Collapse
Affiliation(s)
- Felicitas Weineck
- Department of Clinical and Health Psychology, Ulm University, Ulm, Germany
- * E-mail:
| | - Matthias Messner
- Department of Clinical and Health Psychology, Ulm University, Ulm, Germany
| | - Gernot Hauke
- Department of Clinical and Health Psychology, Ulm University, Ulm, Germany
- Embodiment Resources Academy (ERA), Munich, Germany
| | - Olga Pollatos
- Department of Clinical and Health Psychology, Ulm University, Ulm, Germany
| |
Collapse
|
35
|
Davey S, Halberstadt J, Bell E, Collings S. A scoping review of suicidality and alexithymia: The need to consider interoception. J Affect Disord 2018; 238:424-441. [PMID: 29913380 DOI: 10.1016/j.jad.2018.06.027] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2018] [Revised: 05/07/2018] [Accepted: 06/05/2018] [Indexed: 12/31/2022]
Abstract
BACKGROUND Alexithymia is a problem of emotion regulation and for this reason alone may relate to suicidality. This article investigates the evidence for a direct relationship. It explores the possibility of an additional role for interoception in future research. METHODS A scoping review of peer-reviewed journal articles examining alexithymia and suicidality was undertaken, followed by a critical assessment of the overall state of the evidence base in relation to interoception. RESULTS The review identified 27 journal articles. The evidence base was heterogeneous, involving a variety of clinical and non-clinical samples, and displays mixed findings. The measurement of alexithymia (using the Toronto Alexithymia Scale) and management of confounding variables were identified as problematic in determining its relationship with suicidality. LIMITATIONS The review was limited to published research in the English language. The review findings were not tested and refined by stakeholders. Some of the research studies cited in the critical assessment of interoception were themselves subject to the limitations of the Toronto Alexithymia Scale. CONCLUSION The scoping review identified a collection of articles that were too diverse to permit a definitive answer to the research question. Interoception may provide a fruitful new avenue in understanding the relationship between emotion regulation and suicide.
Collapse
Affiliation(s)
- Steven Davey
- Suicide and Mental Health Research Group, University of Otago, PO Box 7343, Newtown, Wellington 6242, New Zealand.
| | | | - Elliot Bell
- Department of Psychological Medicine, University of Otago, Wellington, New Zealand
| | - Sunny Collings
- Suicide and Mental Health Research Group, University of Otago, Wellington, New Zealand
| |
Collapse
|
36
|
Bischoff-Grethe A, Wierenga CE, Berner LA, Simmons AN, Bailer U, Paulus MP, Kaye WH. Neural hypersensitivity to pleasant touch in women remitted from anorexia nervosa. Transl Psychiatry 2018; 8:161. [PMID: 30115929 PMCID: PMC6095886 DOI: 10.1038/s41398-018-0218-3] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Revised: 06/27/2018] [Accepted: 07/14/2018] [Indexed: 02/06/2023] Open
Abstract
Interoception, or the sensing and integration of bodily state signals, has been implicated in anorexia nervosa (AN), given that the hallmark symptoms involve food restriction and body image disturbance. Here we focus on brain response to the anticipation and experience of affective interoceptive stimuli. Women remitted from AN (RAN; N = 18) and healthy comparison women (CW; N = 26) underwent a pleasant affective touch paradigm consisting of gentle strokes with a soft brush administered to the forearm or palm during functional neuroimaging. RAN had a lower brain response relative to CW during anticipation of touch, but a greater response when experiencing touch in the right ventral mid-insula. In RAN, this reduced anticipatory response was associated with higher levels of harm avoidance. Exploratory analyses in RAN also suggested that lower response during touch anticipation was associated with greater body dissatisfaction and higher perceived touch intensity ratings. This reduced responsivity to the anticipation of pleasant affective interoceptive stimuli in association with higher harm avoidance, along with an elevated response to the experience of touch, suggests an impaired ability in AN to predict and interpret incoming physiological stimuli. Impaired interoception may thus impact one's sense of self, thereby supporting observations of disturbed body image and avoidance of affective and social stimuli. Therapeutic approaches that help AN to better anticipate and interpret salient affective stimuli or improve tolerance of interoceptive experiences may be an important addition to current interventions.
Collapse
Affiliation(s)
- Amanda Bischoff-Grethe
- 0000 0001 2107 4242grid.266100.3Department of Psychiatry, University of California, San Diego, CA USA
| | - Christina E. Wierenga
- 0000 0001 2107 4242grid.266100.3Department of Psychiatry, University of California, San Diego, CA USA ,0000 0004 0419 2708grid.410371.0VA San Diego Healthcare System, San Diego, CA USA
| | - Laura A. Berner
- 0000 0001 2107 4242grid.266100.3Department of Psychiatry, University of California, San Diego, CA USA
| | - Alan N. Simmons
- 0000 0001 2107 4242grid.266100.3Department of Psychiatry, University of California, San Diego, CA USA ,0000 0004 0419 2708grid.410371.0VA San Diego Healthcare System, San Diego, CA USA
| | - Ursula Bailer
- 0000 0001 2107 4242grid.266100.3Department of Psychiatry, University of California, San Diego, CA USA ,0000 0000 9259 8492grid.22937.3dDivision of Biological Psychiatry, Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - Martin P. Paulus
- 0000 0001 2107 4242grid.266100.3Department of Psychiatry, University of California, San Diego, CA USA ,0000 0004 0512 8863grid.417423.7Laureate Institute for Brain Research, Tulsa, Oklahoma USA
| | - Walter H. Kaye
- 0000 0001 2107 4242grid.266100.3Department of Psychiatry, University of California, San Diego, CA USA
| |
Collapse
|
37
|
Schäflein E, Sattel HC, Pollatos O, Sack M. Disconnected - Impaired Interoceptive Accuracy and Its Association With Self-Perception and Cardiac Vagal Tone in Patients With Dissociative Disorder. Front Psychol 2018; 9:897. [PMID: 29997537 PMCID: PMC6031288 DOI: 10.3389/fpsyg.2018.00897] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Accepted: 05/17/2018] [Indexed: 11/13/2022] Open
Abstract
Patients suffering from dissociative disorders are characterized by an avoidance of aversive stimuli. This includes the avoidance of emotions and, in particular, bodily perceptions. In the present pilot study, we explored the potential interoceptive accuracy deficit of patients suffering from dissociative disorders in a heartbeat detection task. Moreover, we investigated the impact of facial mirror-confrontation on interoceptive accuracy and the potential association between cardiac vagal tone derived from heart rate variability and interoceptive accuracy. Eighteen patients suffering from dissociative disorders and 18 healthy controls were assessed with the Mental Tracking Paradigm by Schandry for heartbeat detection at baseline and after confrontations exposing them to their own faces in a mirror (2 min each, accompanied by a negative or positive cognition). During the experiment, cardiac vagal tone was assessed. We used Pearson correlations to calculate potential associations between cardiac vagal tone and interoceptive accuracy. Patients performed significantly worse than the healthy controls in the heartbeat detection task at baseline. They displayed no significant increase in interoceptive accuracy following facial mirror-confrontation. In the patient group, higher cardiac vagal tone was associated with a more precise heartbeat detection performance. Dissociative disorder patients showed a considerable deficit in interoceptive accuracy. Our results fit with the assumption that highly dissociative patients tend to tune out the perceiving of bodily signals. To the extent that bodily signal perception may play a causal role in these disorders, therapeutic approaches enhancing interoceptive accuracy and cardiac vagal tone may be considered important and practicable steps to improve the therapy outcome of this patient group.
Collapse
Affiliation(s)
- Eva Schäflein
- Department of Psychosomatic Medicine and Psychotherapy, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Heribert C Sattel
- Department of Psychosomatic Medicine and Psychotherapy, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| | - Olga Pollatos
- Department of Clinical and Health Psychology, Institute of Psychology and Education, Ulm University, Ulm, Germany
| | - Martin Sack
- Department of Psychosomatic Medicine and Psychotherapy, Klinikum Rechts der Isar, Technical University of Munich, Munich, Germany
| |
Collapse
|
38
|
Interoception and emotion. Curr Opin Psychol 2017; 17:7-14. [DOI: 10.1016/j.copsyc.2017.04.020] [Citation(s) in RCA: 274] [Impact Index Per Article: 39.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Revised: 02/13/2017] [Accepted: 04/18/2017] [Indexed: 12/28/2022]
|
39
|
Esrock EJ. Einfühlung as the breath of art: six modes of embodiment. Cogn Process 2017; 19:187-199. [PMID: 28948415 DOI: 10.1007/s10339-017-0835-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Accepted: 09/05/2017] [Indexed: 11/25/2022]
Abstract
Robert Vischer's concept of Einfühlung, feeling-into, translated as empathy, serves as the departure point for a proposal about viewing art using the body for a non-imitative form of empathy termed a transomatization and for other embodied operations. A transomatization occurs when viewers reinterpret a component or process of their own bodies to serve as a non-imitative stand-in, or correlate, for something outside of the self, specifically, some quality of an art work or its production. This creates an overlap of the self and other that might be experienced subjectively as a feeling of projection, an operation characteristic of empathy. Transomatizations and other embodied experiences are grounded in empathic, intersubjective modes of engaging others that begin in early life. As applications of the proposed concepts, six different embodiments of the viewer's breathing are explored in regard to Friedrich E. Church's 1848 oil painting Morning, Looking East over the Hudson Valley from the Catskill Mountains. Support for elements of the proposed concepts and applications is drawn from research in the biological and social sciences and from first person, embodied accounts of viewing.
Collapse
Affiliation(s)
- Ellen J Esrock
- Department of Communication and Media, Rensselaer Polytechnic Institute, Sage Building, 110 8th Street, Troy, NY, 12180, USA.
| |
Collapse
|
40
|
Christensen JF, Gaigg SB, Calvo-Merino B. I can feel my heartbeat: Dancers have increased interoceptive accuracy. Psychophysiology 2017; 55. [DOI: 10.1111/psyp.13008] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 08/03/2017] [Accepted: 08/06/2017] [Indexed: 11/26/2022]
Affiliation(s)
- Julia F. Christensen
- Cognitive Neuroscience Research Unit, Department of Psychology; City, University of London; London UK
- Autism Research Group, Department of Psychology; City, University of London; London UK
| | - Sebastian B. Gaigg
- Autism Research Group, Department of Psychology; City, University of London; London UK
| | - Beatriz Calvo-Merino
- Cognitive Neuroscience Research Unit, Department of Psychology; City, University of London; London UK
| |
Collapse
|
41
|
Fischer D, Messner M, Pollatos O. Improvement of Interoceptive Processes after an 8-Week Body Scan Intervention. Front Hum Neurosci 2017; 11:452. [PMID: 28955213 PMCID: PMC5601051 DOI: 10.3389/fnhum.2017.00452] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2017] [Accepted: 08/25/2017] [Indexed: 01/23/2023] Open
Abstract
Objective: Interoceptive processes are defined as ability to detect sensations arising within the body. There is a growing body of research investigating ways of improving interoceptive processes. One promising approach increasing the attention to bodily sensations is the body scan (BS), a method stemming from mindfulness-based stress reduction. Research so far revealed only heterogenous findings of meditational practice and mindfulness-based stress reduction on interoceptive processes. Even more importantly, there is no study considering the effect of an 8-week BS intervention on interoceptive processes and the distinguishable subdomains of interoception. Therefore, the main objective of this research is to examine the effects of a BS intervention on different interoceptive subdomains over 8 weeks of training in two different samples. Methods: In study 1, healthy participants executed a 20 min standardized audiotaped BS in the BS intervention group (n = 25) each day over 8 weeks. The control group (n = 24) listened to an audio book for the same amount of time. In study 2, the BS group (n = 18) was compared to an inactive control group (n = 18). In both studies, three measurement points were realized and interoceptive accuracy (IAc) – using a heartbeat perception task – as well as interoceptive sensibility (IS) – using confidence ratings for the heartbeat perception task and the subscale ‘interoceptive awareness’ of the Eating Disorder Inventory-2 (EDI-2) – were assessed. Results: In study 1, we found, as a descriptive trend, IAc and confidence ratings to be increased irrespective of the condition. However, post hoc analysis revealed a significant improvement of IAc between T1 and T3 in the BS intervention only. IS revealed to be unaffected by the interventions. In study 2, we observed a significant positive effect of the BS intervention on IAc and confidence ratings compared to the inactive controls. As in study 1, IS (EDI-2) was unaffected by the intervention. Discussion: The results highlight the fact that interoception can be improved by long-term interventions focusing on bodily signals. Further studies might focus on clinical samples showing deficits in interoceptive processes and could use other bodily systems for measurement (e.g., respiratory signals) as well methods manipulating body ownership.
Collapse
Affiliation(s)
- Dana Fischer
- Department of Clinical and Health Psychology, Institute of Psychology and Education, Ulm UniversityUlm, Germany
| | - Matthias Messner
- Department of Clinical and Health Psychology, Institute of Psychology and Education, Ulm UniversityUlm, Germany
| | - Olga Pollatos
- Department of Clinical and Health Psychology, Institute of Psychology and Education, Ulm UniversityUlm, Germany
| |
Collapse
|
42
|
Lucci G, Patrikelis P. Commentary: Atypical Self-Focus Effect on Interoceptive Accuracy in Anorexia Nervosa. Front Hum Neurosci 2017; 11:228. [PMID: 28529480 PMCID: PMC5418935 DOI: 10.3389/fnhum.2017.00228] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2017] [Accepted: 04/19/2017] [Indexed: 12/05/2022] Open
Affiliation(s)
- Giuliana Lucci
- Department of Technologies, Communication and Society, Marconi UniversityRome, Italy
| | - Panayotis Patrikelis
- Department of Neurosurgery, School of Medicine, Evangelismos Hospital, University of AthensAthens, Greece.,Hellenic Centre for Neurosurgical Research "Prof. Petros Kokkalis,"Athens, Greece
| |
Collapse
|
43
|
Gueguen J, Piot MA, Orri M, Gutierre A, Le Moan J, Berthoz S, Falissard B, Godart N. Group Qigong for Adolescent Inpatients with Anorexia Nervosa: Incentives and Barriers. PLoS One 2017; 12:e0170885. [PMID: 28152083 PMCID: PMC5289494 DOI: 10.1371/journal.pone.0170885] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 01/12/2017] [Indexed: 01/28/2023] Open
Abstract
Background Qigong is a mind-body intervention focusing on interoceptive awareness that appears to be a promising approach in anorexia nervosa (AN). In 2008, as part of our multidimensional treatment program for adolescent inpatients with AN, we began a weekly qigong workshop that turned out to be popular among our adolescent patients. Moreover psychiatrists perceived clinical benefits that deserved further exploration. Methods and findings A qualitative study therefore sought to obtain a deeper understanding of how young patients with severe AN experience qigong and to determine the incentives and barriers to adherence to qigong, to understanding its meaning, and to applying it in other contexts. Data were collected through 16 individual semi-structured face-to-face interviews and analyzed with the interpretative phenomenological analysis method. Eleven themes emerged from the analysis, categorized in 3 superordinate themes describing the incentives and barriers related to the patients themselves (individual dimension), to others (relational dimension), and to the setting (organizational dimension). Individual dimensions associated with AN (such as excessive exercise and mind-body cleavage) may curb adherence, whereas relational and organizational dimensions appear to provide incentives to join the activity in the first place but may also limit its post-discharge continuation. Once barriers are overcome, patients reported positive effects: satisfaction associated with relaxation and with the experience of mind-body integration. Conclusions Qigong appears to be an interesting therapeutic tool that may potentiate psychotherapy and contribute to the recovery process of patients with AN. Further analysis of the best time window for initiating qigong and of its place in overall management might help to overcome some of the barriers, limit the risks, and maximize its benefits.
Collapse
Affiliation(s)
- Juliette Gueguen
- Université Paris-Saclay, Univ. Paris-Sud, UVSQ, CESP, INSERM, Paris, France
- Univ. Paris-Descartes, Paris, France
- * E-mail:
| | - Marie-Aude Piot
- Univ. Paris-Descartes, Paris, France
- Psychiatry Unit, Institut Mutualiste Montsouris, Paris, France
| | - Massimiliano Orri
- Université Paris-Saclay, Univ. Paris-Sud, UVSQ, CESP, INSERM, Paris, France
- Univ. Paris-Descartes, Paris, France
| | - Andrea Gutierre
- Psychiatry Unit, Institut Mutualiste Montsouris, Paris, France
| | | | - Sylvie Berthoz
- Université Paris-Saclay, Univ. Paris-Sud, UVSQ, CESP, INSERM, Paris, France
- Psychiatry Unit, Institut Mutualiste Montsouris, Paris, France
| | - Bruno Falissard
- Université Paris-Saclay, Univ. Paris-Sud, UVSQ, CESP, INSERM, Paris, France
- Univ. Paris-Descartes, Paris, France
| | - Nathalie Godart
- Université Paris-Saclay, Univ. Paris-Sud, UVSQ, CESP, INSERM, Paris, France
- Psychiatry Unit, Institut Mutualiste Montsouris, Paris, France
| |
Collapse
|