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相关概念视频

Regulation of Food Intake01:30

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
Olfaction01:25

Olfaction

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The sense of smell is achieved through the activities of the olfactory system. It starts when an airborne odorant enters the nasal cavity and reaches olfactory epithelium (OE). The OE is protected by a thin layer of mucus, which also serves the purpose of dissolving more complex compounds into simpler chemical odorants. The size of the OE and the density of sensory neurons varies among species; in humans, the OE is only about 9-10 cm2.
The olfactory receptors are embedded in the cilia of the...
45.2K
Conditioned Taste Aversion01:14

Conditioned Taste Aversion

230
Conditioned taste aversion, also known as sauce béarnaise syndrome, is a phenomenon in which an individual develops an aversion to a certain food taste following a negative experience, typically illness. This form of aversion is a type of classical conditioning in which the taste of the food (conditioned stimulus, CS) is associated with the experience of illness (unconditioned stimulus, UCS).
A notable characteristic of conditioned taste aversion is that it often requires only a single...
230
Olfactory Receptors: Location and Structure01:03

Olfactory Receptors: Location and Structure

9.6K
The process of olfaction, also known as the sense of smell, is a sophisticated chemical response system. The specialized sensory neurons that facilitate this process, known as olfactory receptor neurons, are situated in an upper segment of the nasal cavity, known as the olfactory epithelium. Olfactory sensory neurons are bipolar, with their dendrites extending from the epithelium's apex into the mucus that lines the nasal cavity. Airborne molecules, when inhaled, traverse the olfactory...
9.6K
Neural Regulation01:37

Neural Regulation

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Digestion begins with a cephalic phase that prepares the digestive system to receive food. When our brain processes visual or olfactory information about food, it triggers impulses in the cranial nerves innervating the salivary glands and stomach to prepare for food.
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相关实验视频

Updated: Sep 11, 2025

Simultaneous Detection of c-Fos Activation from Mesolimbic and Mesocortical Dopamine Reward Sites Following Naive Sugar and Fat Ingestion in Rats
08:07

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

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食诱导的嗅觉皮层抑制减少了和感.

Hung Lo1, Walter Cañedo Riedel2, Malinda L S Tantirigama3

  • 1Charité-Universitätsmedizin Berlin, Neuroscience Research Center, Charitéplatz 1, 10117 Berlin, Germany; Charité-Universitätsmedizin Berlin, Einstein Center for Neurosciences Berlin, Charitéplatz 1, 10117 Berlin, Germany; Charité-Universitätsmedizin Berlin, Institute of Cell and Neurobiology, 10117 Berlin, Germany.

Neuron
|August 16, 2025
PubMed
概括
此摘要是机器生成的。

暴饮暴食抑制了大脑对食物味道的反应,减少了腹感. 这种与动机相关的大脑活动的变化,驱使在暴饮暴食期间过度进食.

关键词:
2+) 图像成像技术吃得过多,吃得过多,吃得过多.消费 消费 消费 消费 消费 消费味道 味道 味道 味道功能连接性的功能连接性嗅觉结核是一个嗅觉结核.视觉遗传学 视觉遗传学皮质皮质的皮质皮质.感官和 感官和是一种感官和.味道 味道 味道 味道 味道

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Studying Food Reward and Motivation in Humans
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相关实验视频

Last Updated: Sep 11, 2025

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Studying Food Reward and Motivation in Humans
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科学领域:

  • 神经科学是一个神经科学.
  • 感官处理 感官处理
  • 养行为 养行为

背景情况:

  • 味觉感知对于腹至关重要.
  • 过度饮食往往会导致过度饮食.
  • 连接味道,暴饮暴食和摄入的神经机制尚不清楚.

研究的目的:

  • 在养过程中调查前皮质皮质 (aPC) 中的神经反应.
  • 确定暴饮暴食如何改变口味处理和和感.
  • 阐明嗅觉结核 (OT) 在调节养行为的作用.

主要方法:

  • 在自由移动的小鼠中使用微镜进行体内的成像.
  • 在缓慢和暴饮暴食期间,在aPC中记录神经元活动.
  • 神经元电路的光遗传学操纵.
  • 对食物口味和价值的神经元反应的分析.

主要成果:

  • 在慢速养过程中,特定的神经元对口味的反应在狂欢养过程中被全球抑制.
  • aPC抑制强度与食品的价值相关.
  • 在OT中的GABAergic神经元投射到aPC,反映其活动.
  • 在暴饮暴食期间抑制aPC活动减少了和和长时间的食发作.

结论:

  • 嗅觉结核在狂欢食期间抑制前皮质皮质活动.
  • 这种抑制会减少感官和,促进增加食物摄入量.
  • 这些发现揭示了在暴饮暴食状态下过度饮食的基础的神经机制.