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古希腊的哲学家苏格拉底有宽大的前额;有的名人或伟人也具有苏格拉底式的前额;所以,有人将前额宽大作为人聪明的一种象征。这种看法对不对呢?研究表明,人的聪明才智是人脑(确切说是大脑皮层)机能的反映。人的大脑是思维的器官、是人聪颖智慧的物质基础。现代成人的脑约重1300—1500克,大约有150亿个神经细胞。大脑的构造非常复杂,各部分的功能都有精细的分工;同时,各部分间又有神经纤维联系着。大脑通过分析与综合活动,使人与外界环境协调起来,并控制和指挥全身的活动,使人体成为一个有机的统一散人的大脑与动物的脑子相比,已经发生了质的变化,所以人类才有语言、文字、创造发明以及复杂的意识、情绪、思维等高级神经活动。据科学家估计,人的一生中大脑能储存一千亿个信息单位,能容纳五亿多本书的知识。人聪明与否,主要与大脑细胞的素
Socrates, the ancient Greek philosopher, had a broad forehead; some celebrities or great men also had Socratic precursors; so some were foreheads as a symbol of cleverness. Is this not wrong? Studies show that human intelligence is a reflection of the functioning of the human brain, specifically the cerebral cortex. The human brain is the organ of thinking, is the material basis of human intelligence. Modern adult brain weighs about 1300-1500 grams, about 15 billion nerve cells. The structure of the brain is very complex, the function of each part has a fine division of labor; at the same time, there are nerve fibers connected with each other. The brain has changed qualitatively compared to the brains of animals by analyzing and synthesizing activities that bring people into harmony with the outside world and control and direct the whole body, making the human body an organic one. There are languages, texts, inventions, and sophisticated neurological activities such as complex consciousness, emotions, and thinking. According to scientists’ estimates, a human being’s brain can store 100 billion units of information and can hold more than 500 million books of knowledge. People smart or not, mainly with the brain cells of the prime