- 1、本文档共62页,可阅读全部内容。
- 2、原创力文档(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
- 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
查看更多
appsychologyunit
* * * * * * * The limbic system is a donut-shaped area in the center of the brain. This region is responsible for much of the influence on the body’s hormonal system (which in turn, controls much of our emotions such as fear and anger, as well as our basic motives for things like food and sex). There are four main parts to the limbic system – the hypothalamus (which controls the pituitary gland), the hippocampus, and the amygdala). The hypothalamus is about the size of a lump of sugar – in rats it is about the size of the head of a pin. The hypothalamus has three key functions: it is responsible for parts of our reproductive behavior, controlling our temperature, and our feeding behavior. It does this through its control of the pituitary gland, which monitors the secretion of hormones. Receiving certain types of sensory information triggers the hypothalamus to direct the pituitary gland to respond by secreting a particular hormone or to stop secreting a certain hormone. For example, you see a table laden with cookies, chocolate, and cake and your hypothalamus tells your pituitarty gland to secrete hormones that increases your hunger level. Similarly, the hypothalamus also influences reproductive behavior (destroying the hypothalamus ceases copulatory behavior in rats and dogs; stimulation of it will lead to increases in copulatory behavior). The hypothalamus also control your body’s internal temperature. In 1912, a researcher by the name of Barbour placed a silver wire into a dog’s hypothalamus. When the wire was heated, the dog’s body temperature decreased, when the wire was cooled, the dog’s body temperature increased. If damage, which is also called a lesion, is done to the hypothalamus, it can’t regulate increases or decreases temperature, but it can still influence shivering or vasoconstriction The hippocampus is the part of the brain that processes memory. If damage is done to this area, people are unable to create new memories. There is a ver
文档评论(0)