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寻找食物的神经机制
Nils Kolling1, Timothy E J Behrens, Rogier B Mars
1Department of Experimental Psychology, University of Oxford, Oxford OX1 3UD, UK. nils.kolling@psy.ox.ac.uk
概括
人类在决策和食模式之间切换,参与不同的大脑区域. 腹中前额叶皮层 (vmPFC) 处理选项值,而前带皮层 (ACC) 管理食环境价值和成本.
科学领域:
- 神经科学是一个神经科学.
- 行为经济学是一种行为经济学.
- 决策科学 决策科学 决策科学
背景情况:
- 有限选择的研究揭示了神经决策.
- 动物食涉及到连续的选择和食成本.
- 了解食选择机制至关重要.
研究的目的:
- 调查神经机制区分比较决策和食.
- 识别不同的大脑区域和每个选择模式的参考框架.
主要方法:
- 人类行为实验.
- 神经成像技术 (隐含).
- 在不同的神经参考框架中分析选择变量.
主要成果:
- 人类在比较决策和食模式之间交替进行.
- 风中前额叶皮层 (vmPFC) 编码特定选项的值.
- 前带状皮质 (ACC) 编码了平均食环境价值和食成本.
结论:
- 不同的神经机制支持不同的选择模式.
- vmPFC和ACC在决策和食方面发挥着专门的作用.
- ACC使用一个不变的参考框架来做食决策.
相关概念视频
Optimal Foraging
How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.
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...
