来自《耶鲁大学开放课程：有关食物的心理学、生物学和政治学 第5集 第5集》

• 
  
  that are affecting taste and affecting what people eat.
  所有因素的概括
• 
  
  Central to this are central signals those--they would be the brain
  图的中央代表着中枢信号 产生于大脑
• 
  
  and the central nervous system
  和中枢神经系统
• 
  
  and then over here are peripheral signals
  这里是外周信号
• 
  
  that happen outside the brain, mainly from the body's organs.
  产生于大脑外部 主要来自身体器官
• 
  
  Let's break this down and take it piece by piece
  让我把它分步骤并逐一讲解
• 
  
  and show you how it might all fall together.
  看看它们是如何协同作业的
• 
  
  Let's start with the brain.
  从大脑开始
• 
  
  First of all, the brain and its subsequent physiological reaction
  首先 大脑和它的后续生理反应
• 
  
  is affected by external factors.
  受外部因素的影响
• 
  
  The fact that you might seek out certain foods to soothe yourself
  当人们因为压力而去找食物
• 
  
  when you're stressed
  想让自己放松时