Having a larger brain equated higher intelligence? the problem has baffled scientists for centuries. And now, researchers explain why some people smarter than others found brain size in here only plays a small role.
Researchers believe that brain structure is the key to interpret intelligence. And as early as 1836, Germany anatomist Friedrich Tiedemann said in an article published in his brain the size of its features, functions, there is definitely a connection between.
Since then, experts divided agree with faction and the opposition. To this day, an MRI scan of brain imaging methods, such as allowing them to more accurately assess the brain capacity, and more reliable than ever. Victorias Secret iPad Mini Case
In order to study the relationship between brain size and intelligence, an international research team led by the University of Vienna to 148 contains 8,000 participants data samples are analyzed. They found that brain size IQ between a very stable but weak associations, nothing to do with gender and age of the participants. The study, published in the neuroscience and biological behavior of commentary magazine.
"Currently observed correlation means that brain size in human intelligence played only a small role in the process. "Jakob Pietschnig said from the Vienna Institute of applied psychology. In his view, although there is a correlation between the two, but the structure and integrity of the brain seems to be more important. Victorias Secret iPad Mini Case
However, at the time of comparison of different species and importance of brain size becomes very obvious. For example, sperm whales have the largest of the central nervous system, and hamsters are tops in weight control, humans have been dumped a few blocks away. Researchers say this suggests that differences in the structure of the brain causing the intellectual differences between different species.
Brain size and intelligence, and there is no direct relationship. As we all know, men's brains are larger than some women, but in the global IQ test, men and women show no significant difference. And people with big brain malformation syndrome in an IQ test score to be lower than the general population. Jakob Pietschnig, said: "from a human cognitive performance, the structure of the brain seems to be more important than brain size. "
It is interesting, in a recent experiment, researchers made a preliminary study of 226 patients with Alzheimer's, they found that brain size, especially the size of the hippocampus, can predict the chances of a person suffering from the disease. Previous studies have shown that the size of the hippocampus, can be used as criteria for evaluating the risk of Alzheimer's disease.
Aaron Bonner-Jackson from the Cleveland Clinic Research Center, says: "our hopes hippocampus size to detect early signs of Alzheimer's, making it another sign of the disease. "
[Article correction]
Collection is the collection of 1542
Tags: Science and technology And anecdotes
No comments:
Post a Comment