The frontal lobe of the brain is concerned with reasoning, planning, parts of speech and movement, emotions, and problem-solving.
Damage or abnormalities in the frontal lobe -- a brain area that regulates movement, inhibition, emotions and general behaviors -- has been linked to violent behavior.
In one case, a man who had been a linebacker for sixteen years, you could see, without the aid of magnification, that there was trouble: there was a shiny tan layer of scar tissue, right on the surface of the frontal lobe, where the brain had repeatedly slammed into the skull.
These reports suggested that religiosity originates specifically in the brain's temporal lobe, and that religious visions are the result of epileptic seizures that affect this part of the brain.
In particular, he has a patient called Elliot (in neuroscience, patients are often referred to by single names or initials to preserve their privacy) whose frontal lobe was damaged by a brain tumour.
He found that the aircrew given the shorter period to "turn around" after a jet-lagging flight had an area of the brain called the temporal lobe which was noticeably smaller than the others.
Previous studies of novelty-seeking behaviour suggest that it is managed by the brain's right frontal lobe.
The hippocampus, for example, is a part of the brain in the medial temporal lobe, which is very active in spatial navigation and memory.
Scans also show that the temporal lobe, which contains the hippocampus, and another brain region called the posterior cingulate use less glucose than a normal brain, suggesting they have shut down.
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Three days later, Kennedy's doctors at Massachusetts General Hospital in Boston said preliminary results from a brain biopsy showed a tumor in the left parietal lobe was responsible for the seizure.
They found that people with symptoms of dyslexia showed less neural activity in parts of the brain that are vital to reading (in the temporal lobe).
Shortly after, doctors diagnosed a brain tumor -- a malignant glioma in his left parietal lobe.
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The results suggest that these emotions are handled in the medial prefrontal cortex (the middle of the front of the frontal lobe), the left posterior superior temporal sulcus (one of the furrows towards the side of the brain) and the visual cortex (towards the back of the brain).
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