相关实验视频

Updated: Jul 4, 2025

Studying Food Reward and Motivation in Humans

Studying Food Reward and Motivation in Humans

Published on: March 19, 2014

在食堂饮食消费时,奖励诱导的神经活动的变化

R Heijkoop¹, J F Lalanza¹, M Solanas²

¹Department of Psychology, UiT The Arctic University of Norway, Norway.

Physiology & behavior

|February 2, 2024

概括

长期的垃圾食物消费,或咖啡馆 (CAF) 饮食,改变了大脑.

科学领域:

神经科学是一个神经科学.
行为科学行为科学
饮食科学饮食科学

背景情况:

非常美味的食物 (垃圾/快餐) 通过激活大脑的奖励通路来驱动肥胖.
过多的垃圾食物摄入改变大脑的奖励系统的机制仍然不清楚.

研究的目的:

研究长期食堂饮食 (CAF) 对雌性大鼠大脑奖励系统的影响.
为了确定CAF饮食的不同饮食限制方案是否会影响这些神经生物学变化.

主要方法:

成年雌性Long-Evans老鼠被食标准或三个CAF饮食方案之一,持续6周.
方案包括:自由选择的每日访问,30%的每日访问限制,或间歇性的每周访问.
在饮食暴露后,在摄入CAF奖励后,测量了在Accumbens核 (NAc),前额叶皮层 (PFC) 和腹膜区域 (VTA) 的c-Fos表达.

主要成果:

所有CAF饮食组在CAF奖励消费时,NAc中的c-Fos表达减少.
在不同饮食组的PFC或VTA中没有观察到c-Fos表达的显著变化.
这表明在长期暴露于垃圾食品后,NAc中的神经反应减弱.

结论:

长期接触食堂饮食,无论具体的消费模式如何,都会影响大脑的奖励系统.
具体来说,它导致核突贝中的活动减少,这是奖励处理的关键区域.
这些发现强调了慢性垃圾食物消费对奖励回路的神经生物学后果.

关键词:

咖啡馆的饮食方式垃圾食物就是垃圾食物.肥胖问题肥胖问题它们是老鼠,老鼠,老鼠.奖励系统是一个奖励系统.c-的使用.

更多相关视频

Palatable Western-style Cafeteria Diet as a Reliable Method for Modeling Diet-induced Obesity in Rodents

Palatable Western-style Cafeteria Diet as a Reliable Method for Modeling Diet-induced Obesity in Rodents

Published on: November 1, 2019

Simultaneous Detection of c-Fos Activation from Mesolimbic and Mesocortical Dopamine Reward Sites Following Naive Sugar and Fat Ingestion in Rats

Simultaneous Detection of c-Fos Activation from Mesolimbic and Mesocortical Dopamine Reward Sites Following Naive Sugar and Fat Ingestion in Rats

Published on: August 24, 2016

相关概念视频

Regulation of Food Intake

Regulation of Food Intake

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...