相关实验视频
Updated: Sep 11, 2025

04:48
Control of Eating Behavior Using a Novel Feedback System
Published on: May 8, 2018
11.1K
单变量和多变量模式分析揭示了肥胖时的负面身体形象对与食物相关的抑制控制的影响
Zihan Xu1, Yuchan Xu1, Junyao Han1
1Faculty of Psychology, Southwest University, Chongqing 400715, China.
Nutrients
|August 14, 2025
概括
负面的身体形象增强了对食物刺激的抑制控制,即使在正常体重的个体中也是如此. 这表明身体不满显著影响与饮食行为相关的认知控制.
科学领域:
- 认知神经科学 认知神经科学
- 行为科学 行为科学
- 肥胖问题研究研究
背景情况:
- 身体感知显著影响饮食行为和对食物的反应.
- 关于负面的身体形象如何影响对食物刺激的行为和神经反应的研究有限.
- 这项研究探讨了通过身体不满来调节与食物相关的抑制控制.
研究的目的:
- 为了研究身体不满的增加对与食物相关的抑制控制的影响.
- 为了比较神经和行为反应对食物刺激在个体高负面的身体形象对比对照.
- 检查身体感知在调节对食物摄入的认知控制中的作用.
主要方法:
- 51名参与者被分为三个组:超重/肥胖,体重正常,身体形象高度负面,健康对照组.
- 参与者在接受电脑电图 (EEG) 记录的同时执行了特定于食物的抑制控制任务.
- 与事件相关的潜力 (ERP) 和多变量模式分析 (MVPA) 用于分析神经数据.
主要成果:
- 与健康对照组相比,高负面人体图像组表现出优越的no-go精度和增强的抑制控制.
- 脑电图分析显示,在高负面人体形象组中,高热量食物的冲突检测 (P200) 增加,冲突解决 (LPP) 减少.
- 在高负的身体图像组中,MVPA表明了较早的神经歧视,这表明了更有效的抑制处理.
结论:
- 负面的身体感知是与食物相关的认知控制机制的重要调节器.
- 在高负面人体形象的个体中观察到的增强的抑制控制强调了人体形象和饮食行为之间的复杂相互作用.
- 这些发现对理解和潜在地干预受身体不满影响的饮食行为有影响.
相关概念视频
Bulimia Nervosa
194
Bulimia nervosa is a complex and severe eating disorder characterized by a cyclical pattern of binge-and-purge eating pattern. It generally involves an episode of binge eating, followed by compensatory behaviors such as vomiting, excessive exercise, laxative use, or fasting, to prevent weight gain. Despite often maintaining a normal weight, individuals with bulimia are intensely preoccupied with their body image and harbor an overwhelming fear of gaining weight. This can contribute to the...
194
Binge Eating Disorders
168
Binge eating disorder is a significant mental health condition characterized by recurrent episodes of excessive food consumption within a short period, accompanied by a perceived loss of control over eating behavior. Unlike occasional overeating, binge eating disorder is marked by distressing emotions such as guilt, shame, and anxiety following binge episodes. The disorder affects individuals across different ages and backgrounds, with profound implications for physical and psychological...
168
Regulation of Food Intake
411
Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
411
Anorexia Nervosa
189
Anorexia nervosa is a complex and severe eating disorder characterized by an intense fear of weight gain, an unrelenting pursuit of thinness, and a distorted body image. It often leads to dangerously low body weight relative to an individual's age and height. This disorder is marked by significant physical and psychological consequences, making it one of the most life-threatening psychiatric illnesses.
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
Symptoms and Physical Effects
Individuals with anorexia nervosa commonly exhibit extreme...
189
Assessment of the Gastrointestinal System II: Health Perception Pattern
162
Assessing the gastrointestinal (GI) system is a complex process that begins with collecting subjective data. This data, collected through patient interviews, provides crucial insights into the patient's health history, perception patterns, and lifestyle habits, all contributing significantly to GI health.
Health Perception Patterns
Health perception patterns offer valuable insights into a patient's lifestyle habits and how they may impact their GI health. These patterns include:
Health Perception Patterns
Health perception patterns offer valuable insights into a patient's lifestyle habits and how they may impact their GI health. These patterns include:
162
Obesity
614
The Body Mass Index (BMI) is a numerical value derived from a person's weight and height, used to categorize individuals into weight ranges. It is calculated using the formula: weight in kilograms divided by height in meters squared. Obesity is a health condition characterized by excessive accumulation of adipose tissue that poses health risks, often diagnosed with a BMI ≥ 30. This excess fat storage occurs when surplus dietary calories are converted into triglycerides and stored in...
614

