Biological basis of aggression, Science

Biological Basis of Aggression:

Studies show that mild electrical stimulation of  a specific region of the hypothalamus - produces aggressive behaviour  in animals. When a cat's  hypothalamus was stimulated by implanting electrodes in  the brain and passing an electric current, it's hair stood on end; it hissed and arched it's back and would strike at anything that was placed in its cage. 

In  higher mammals like monkeys this instinctive pattern  is not observed. Their behaviour was seen to be more controlled by  the cerebral cortex rather than mere stimulation of the hypothalamus. The hypothythus may  send a message  to the cerebral cortex that its aggressive centres have bcen stimulated, the cortex then chooses the response considering what is going on in the environment, and what has been  stored in  the memory from past experiences. 

We  too have centres in  thc brain that can make us behave aggressively, but thefactivation  is under cognitive control. Some brain damaged persons may react to stimulation with aggressive behaviour, which would not elicit any response from normal persons. In such cases, it was found  that  the cerebral cortex was the damaged area ot  the brain. In normal persons. we can say  that  aggressive hehaviour  is determined largkly by social influences and personal experiences.  

Posted Date: 9/28/2012 9:08:15 AM | Location : United States







Related Discussions:- Biological basis of aggression, Assignment Help, Ask Question on Biological basis of aggression, Get Answer, Expert's Help, Biological basis of aggression Discussions

Write discussion on Biological basis of aggression
Your posts are moderated
Related Questions
Issues Related to Safety Management (i) Plant design - There was a major error in the plant design. There was no need of storing such a hazardous substance in such huge amount

What is full form of WHO ?

The three clinical nurse consultants working in gastrointestinal surgery received 14 face-to-face hours of research training, including instruction in qualitative interview techniq

1- What are some defining events that can be traced to laws or legal issues that influence diversity and organizational culture today? 2- Are stereotypes in the media assisting

why does water erupt from geysers?

1. What is the difference between an explicit method over implicit in FEA? Which one will you use over the other? Name the kind of analysis. 2. What is the Newton Raphson method

Explain why earthworms are said to be the most important soil animals. Earthworms ingest organic matter as well as soil where they mix, granulate and excrete to increase stabil

Q. When are conditions right for harvesting a crop for local and distance markets? The conditions right for harvesting a crop for local markets: harvest in the early morning t

What is your evaluation of the effectiveness of the U.S. health care system in the context of delivery, finance, management, and/or sustainability? What are the issues that prompte

Navigation and Astronomy: As we have said earlier, by  the edd of  the Middle Ages, trade on land and over the seas was being Sken up on a big scale. By  the fifteenth centur