前叶是指一个世纪的的终端之后的开始。
例如，来自大脑下丘脑的激素会刺激垂体前叶。
For example, hormones from the hypothalamus in the brain stimulate the anterior lobe of the pituitary gland.
森田疗法是20世纪前叶由日本森田正马教授创立的。
Morita psychotherapy was developed by Japanese psychiatrist Shoma Morita in the early part of the twentieth century.
举个例子，当故事主人公拉下电灯线时，读者脑前叶主管抓这个动作的部分就被激活了。
So, when the story- protagonist pulled a light cord, a region in the frontal lobes of the reader's brain associated with grasping things was activated.
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