View clinical trials related to Anorexia Nervosa.
Filter by:Body representation can be explored using behavioural tasks such as motor imagery tasks as well as body illusions. In both cases, evidence from studies on healthy individuals as well as patients with lesions to the central nervous system show that body representation is not set in stone: how we imagine our bodies is a dynamic and continuously updated process, to reflect changes in our own body as well as the environment. In anorexia nervosa the representation of the body is very different from that of healthy individuals: the representation is more malleable, and easier to manipulate, while at the same time being more detached from physical constraints. These features of body representation in anorexia nervosa might contribute to the persistence of symptoms and to relapses too. Body representation has clear implications for treatment of anorexia nervosa too. The study aims at evaluating the presence of differences in the malleability of the body representation, explored through the illusion of the sixth finger, between a group of people with AN and a group of normal weight people, taking into account the biomechanical constraints that characterize the physical and mentally represented body.
The treatment of anorexia nervosa often proves to be difficult. There are no drugs that work specifically for the treatment of anorexia nervosa. Experimental administration of metreleptin (synthetically produced leptin) to patients with anorexia nervosa has produced positive results. This study tests the effect of metreleptin in comparison with placebo, which could potentially make treatment easier. The aim of the study is to investigate whether treatment with metreleptin can help to reduce the symptoms of anorexia nervosa and improve mood and weight.
Altered emotional processing is reported in Anorexia Nervosa. However, this capability is generally measured through explicit measures, like self-report questionnaires and facial emotion recognition tasks. Instead, no previous research has investigated implicit emotional processing in this clinical condition. In the implicit facial emotion recognition task grounded on the implicit "redundant target effect", individuals generally respond faster when two identical targets are presented simultaneously rather than when presented alone; moreover, the competitive presence of a distractor (that is another emotion or a neutral expression) affects the correct recognition of the target. The ability to recognize and detect facial expressions is explored about two main emotions, fear and anger, because of their role in the intra- and interindividual psychological processing.
The goal of this observational cross-sectional study is to test the sensory attenuation effect with auditory stimuli comparing women affected by anorexia nervosa and healthy-weight women. Specifically, the study aims to test whether the sensory attenuation effect (i.e., the perceived loudness of a self-generated sound is weaker than when another person produces the same sound): i) is observed in anorexia nervosa ii) it can be modulated in interactive action contexts, as was previously observed in healthy participants. Participants will compare the loudness of target sound with a comparison tone, which can be prompt by the participant by pressing a button on their own will (i.e., individual context) or upon the experimenter's signal (i.e., interactive context); externally-generated sounds are produced in the opposite way.
The present research project aims to verify a possible difference in the recalibration of the real hand position (i.e. proprioceptive drift) in relation to the dimensions of the plastic hand in the Rubber Hand Illusion, among a group of female participants with anorexia nervosa compared with a normal weight control group.
Hypothesis: Will the use of tDCS brain modulation in the cerebellum assist in restricted behaviors, social cognition and cognitive flexibility in women with anorexia nervosa in addition to other therapies? Primary Outcomes: 1. To observe the impacts and outcomes of cerebellar transcranial direct current stimulation (tDCS) on social behaviors measured by Cyberball and Trust Game. 2. To observe the neuropsychological impacts of cerebellar tDCS through fMRI imaging as well as looking at the Region of Interest (ROI) of changes in the Default Mode Network and Cerebellum circuits and their activation levels in those networks. Secondary Outcomes: 1.To observe the impacts and outcome of cerebellar transcranial direct current stimulation (tDCS) measuring the differences between anodal and cathodal stimulation. To observe potential increases in responses to social stimuli, decreases in eating disorder/depressive symptomology via cathodal stimulation. To also observe potential little to no changes in social stimuli and eating disorder/depressive symptomology via anodal stimulation.
The main goal of the BIocoLlection in Anorexia Nervosa-liver damage evaluation BILAN study the blood biomarkers associated with liver cytolysis.
Experimental and genetic data, as well as brain imaging, support a role of the hypothalamic Arcuate nucleus neurons and their communication with surrounding microglia in anorectic conditions, but it has until recently not been possible to explore these cells at a molecular level in anorexia nervosa (AN) patients. This attributed to the obvious lack of valid tissue and non-invasive imaging techniques of high enough resolution. Stem cell models have evolved as a useful tool for the exploration of other neuropsychiatric disorders with a comparably high genetic contribution as AN. The investigators will here use patient-derived induced pluripotent stem cells (iPSCs) to profile Arc neurons and peripheral blood mononuclear cell (PBMC) derived microglia in AN, thus defining molecules to explore as drug targets.
The objective of this observational study is to investigate the potential influence of anorexia nervosa on the sexual health of women. The primary focus is to determine the presence of sexual dysfunction in individuals with anorexia nervosa and explore any potential correlation between eating disorders and sexual dysfunction. To facilitate comparison, data from a control group comprising healthy women is incorporated alongside the clinical group data.
The goal of this clinical trial is to study the effect of Radically Open Dialectical Behaviour Therapy (RO-DBT) in patients with anorexia nervosa (AN) in an extended baseline experimental case series study design over 30 weeks. The main questions the trial aims to answer are: 1. Does RO-DBT reduce eating disorder psychopathology in AN as measured by the Eating Disorder Examination Questionnaire (EDE-Q)? 2. Does RO-DBT reduce maladaptive overcontrol and neuroticism in AN as measured by change in the total score of the Five-Factor Obsessive Compulsive Inventory (FFOCI-SF), and the neuroticism domain in the NEO Five-Factor Inventory-3 (NEOFFI-3), respectively? 3. Does RO-DBT reduce emotional dysregulation in AN as measured by change in the Expressive Supression subscore of Emotion Regulation Questionnaire (ERQ)? 4. Does RO-DBT increase body weight as measured by change in Body Mass Index (BMI)?