在青少年前暴饮暴食障碍中,在奖励预期和抑制控制期间,任务唤起的神经活动
Stuart B Murray1, Ru Zhang2, Christina J Duval1
1Department of Psychiatry & Behavioral Sciences, Keck School of Medicine of USC, University of Southern California, Los Angeles, California.
概括
与同龄人相比,患有暴饮暴食障碍 (BED) 的青春期前儿童在与奖励或抑制控制相关的大脑活动中没有差异. 这项研究研究了儿科BED中的神经网络,没有发现显著的群体差异.
科学领域:
- 神经科学是一个神经科学.
- 发展心理学 发展心理学
- 儿科精神病学 儿科精神病学
背景情况:
- 暴饮暴食障碍 (BED) 的特点是行为模式暗示奖励和抑制控制问题.
- 虽然成年人BED研究显示神经网络异常,但儿童的神经生物学仍然在很大程度上未经检查.
- BED的行为标记通常出现在童年,突出了儿童神经生物学研究的必要性.
研究的目的:
- 为了研究青春期前儿童中暴饮暴食障碍 (BED) 的神经生物学.
- 在特定任务期间检查奖励和抑制控制网络中的功能性大脑活动.
- 为了比较患有BED的儿童与年龄相匹配的对照儿童之间的神经反应.
主要方法:
- 使用功能性磁共振成像 (fMRI) 对58名青春期前儿童 (9-10岁) 进行了BED和68名对照.
- 参与者完成了货币激励延迟任务和停止信号任务.
- 在感兴趣的区域分析了血液氧水平依赖 (BOLD) 反应,包括轨道前皮质,核,背侧前额皮质和前带皮质.
主要成果:
- 在抑制控制任务期间的神经活动中没有发现任何显著的群体差异.
- 在预期或接受奖励期间,大脑反应中没有显著的群体差异.
- 与对照人群相比,患有BED的儿童在关键奖励或抑制控制回路中没有表现出异常的神经活动.
结论:
- 在测试任务期间,患有BED的青春期前儿童在奖励或抑制控制电路中没有显示神经活动的改变.
- 研究结果表明,在儿科BED中观察到的行为差异可能并非源自检查的特定神经回路.
- 需要进一步的研究来了解这种年龄组中BED的神经生物学基础.
相关概念视频
01:23Binge Eating Disorders
68
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...
68
01:30Attention-Deficit/Hyperactivity Disorder
68
Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by persistent inattention, hyperactivity, and impulsivity. It affects approximately 5-8% of children globally, with around 60-70% of cases persisting into adulthood. ADHD has significant implications for educational attainment, social interactions, and occupational success.
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings....
68
01:30Regulation of Food Intake
228
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...
228