Functional Brain Scanning

The Holy Grail of Neuroscience is a perfect understanding of the human brain. You can see the brain at work, and in a sense accurately telling what it is thinking will be a huge brain puzzle. For centuries, such an idea was merely an illusion. However, in a series of innovations in modern medicine in the 20th century, functional brain scan is a long-term fantasy, scientists see the brain in action and de facto technology to show what it is doing It evolved rapidly. I hope understanding.

The invention of functional brain scanning in the 1980s revolutionized the understanding of what happened in our minds. The first scan of the murderer was done in California by British neuroscientist Adrian Rain. He was attracted to the Golden State, not the beach, but what he called "a lot of very violent and murderous people". Over the years, Rennes and his team scanned the brains of many killers, and nearly all show similar brain changes. In the prefrontal cortex, the activity of excessive activation of the brain region and the amygdala which controls the emotional impulse decreases, and the amygdala is the region that generates emotion.

To study brain function, researchers used scan to show physiological activity in the brain. You may have seen reports on these studies. The report usually includes a description such as "X is" part of the brain when "X illuminates Y". Older functional scan - EEG and single photon emission computed tomography (SPECT) patterns or blood flow are each respectively. A newer method such as positron emission tomography (PET) uses a radiotracer that can be found in the brain.