What is a cognitive reserve?
The cognitive reserve is an idea that has been developed to explain why two people can suffer similar amounts of brain damage, yet ends up with different levels of brain function. Scientists have suggested that a cognitive reserve may be greater in the brains of some people than others, allowing them to overcome damage caused by disorders such as moves and Alzheimer's disease. Although scientists are not sure how this is, a cognitive reserve could result from brain work more effectively than usual. An alternative mechanism could be that if necessary, the brains of some people are able to use areas that are not normally used. The brain reserve concerns the size of a human brain before injury and theory is that the brain larger and the more available nerve cells, the better one can deal with after brain damage. This theory does not take into account the way the individual's brain works and its ability to adapt, so the cognitive reserve theory has been developed.
Thehypothesis cognitive reserves suggest that some people are able to solve problems and process information more efficiently than others. Some may also be able to use alternative parts of the brain that most people usually do not use to perform certain tasks. IBA or both of these factors could provide people with reserve capacity in the brain that comes into play when part of the brain is lost by injuries or illnesses.
It could explain why after death, some people had brain changes associated with advanced Alzheimer's disease, yet they never showed the symptoms of the disease when they were alive. You can think that Alzheimer's disease could occur later in people with a large cognitive reserve, although their brains may show the same damage as in people with a lower reserve in which the disease has become obvious earlier. Since people with a large cognitive reserve could deal with the loss of brain function withRelatively advanced changes in Alzheimer, it could mean that when the disease is finally diagnosed, they can quickly go downhill.
To have a large cognitive reserve is associated with certain factors such as high IQ and participation in a large number of interests and activities. It is believed that cognitive research can change throughout life as man's lifestyle changes. Those who continue to accept new activities and monitor intellectual persecution should tend to maintain a high reserve while those who stopped using their brains