Exploration of the Mechanisms of Vulnerability of Anorexia Nervosa at an Early Age : Study of the Cognitive Treatment of Food Stimuli and Body Image
试验速览
- 阶段
- 不适用
- 入组人数
- 90
- 试验地点
- 2
- 主要终点
- cognitive processing
研究概览
简要总结
In order to explore the cognitive treatment of patients with early onset anorexia nervosa (AM) in front of images of silhouettes and food, we will use the eye-tracking method. While we hypothesize a judgment disorder in these patients, the exploration of implicit cognitive treatment without desirability bias is essential. Eye-tracking is a method of recording the eye path that provides qualitative and quantitative information on the visual exploration of subjects. The visual pathway depends on how the subject's attention is directed to a given stimulus, but also on certain cognitive traits (e.g., excessive attention to details) or symptoms (e.g., avoidance of caloric food images or attraction to thin images). It is therefore a non-invasive exploration tool, which provides information on how patients look at food images and silhouettes. This project will describe the cognitive treatment of dietary stimuli and body image in young patients with early onset AM. It could identify a biomarker of AM in the pediatric population and improve the diagnosis of the disease. A better diagnosis of AM in patients under 15 years of age is essential and will improve medical care and develop personalized medicine.
详细描述
Monocentric, prospective cohort, case-control type study. The population concerned is composed of patients with early onset anorexia nervosa (AM) and control subjects (two groups).
The objectives of this study are to:
Describe the cognitive treatment of early-onset AM patients with specific stimuli of the disorder (eating and body images) compared to age- and sex-matched control subjects:
- children controls not achieved with normal body mass index(BMI);
- children with unbalanced insulin-dependent type 1 diabetes, therefore subject to a strict diet that requires good nutritional knowledge and no weight judgment disorders.
Describe the links between cognitive treatment and clinical phenotype in patients with early onset AM, in particular severity of eating behaviour trouble symptomatology (TCA), psychiatric and somatic comorbidities, neuropsychological profile.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Other
- 盲法
- None
入排标准
- 年龄范围
- 8 Years 至 14 Years（Child）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients with anorexia nervosa.
- •Age 8 to 14 years,
- •Early AM diagnosis (AM DSM-5 criteria, and presence of primary amenorrhea at diagnosis for girls),
- •Follow-up in the Child Psychiatry Department of the Robert Debré Hospital,
- •Affiliation to a social security system,
- •Authorization of the holder(s) of parental authority and acceptance of the child to participate in this research.
- •Witnesses from the general population:
- •Age 8 to 14 years,
- •Normal Height-weight development defined by: Weight, Height, BMI between 10° and 90° percentile for age and sex, without changing the growth curve.
- •Authorization of the holder(s) of parental authority and acceptance of the child to participate in this research
- •Witnesses with type 1 diabetes:
- •Age 8 to 14 years,
- •Type 1 diabetes for more than a year,
- •Follow-up in the endocrinology department of the Robert Debré Hospital,
- •Normal height-weight development defined by: Weight, Height, BMI between 10° and 90° percentile for age and sex, without changing the growth curve.
- •No clear imbalance with HbA1c <8.5%.
- •Authorization of the holder(s) of parental authority and acceptance of the child to participate in this research
排除标准
- •Patients with AM.
- •Existence of an intellectual deficit (IQ <70). The patient will not be able to have a new IQ test within one year of inclusion.
- •Other Axis I disorder (Kiddie SAS)
- •Existence of a severe neurosensory disorder
- •Existence of a neurological disorder
- •other eating disorders(DSM-5)
- •Diabetes type 1
- •Witnesses :
- •Any Axis I psychiatric disorder
- •Existence of an intellectual deficit
- •Existence of a severe neurosensory disorder
- •Existence of a neurological disorder
- •Long-term drug treatment (other than insulin for controls with type 1 diabetes)
- •Type 1 diabetes (for controls in the general population)
- •Psychometric test taken in the year before inclusion
结局指标
主要结局
cognitive processing
时间窗: one day
cognitive processing in front of 20 images of food and silhouettes of variable weight
次要结局
- body mass index(one day)
- fixing a region of interest(one day)
- total score on the Morgan and Russell scale(one day)