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25 business leaders may be psychopaths

The disorder prevents people feeling 'empathy' towards other people, or guilt for offences

Intellectual performance requires the specific type of fat found most commonly in fish, known as omega-3 fatty acids

polyunsaturated oils widely recommended as healthful for the heart and widely used in cooking, frying and prepared food—corn, safflower and sunflower oils—have almost no omega-3s.

proper balance of omega-6s and omega-3s. Canola oil and walnut oil are highly recommended.

Sugar can make you sharp—although no one can figure out what is the right dose at the right time.

significance of these findings cannot be underestimated

the biological basis of psychopathy remains poorly understood

To date, nobody has investigated the 'connectivity' between the specific brain regions implicated in psychopathy.

Earlier studies had suggested that dysfunction of specific brain regions might underpin psychopathy

amygdale

the degree of abnormality was significantly related to the degree of psychopathy. These results suggest that psychopaths have biological differences in the brain which may help to explain their offending behaviours.

Vegetables do much of the same good as fruit

Egg yolk is a leading source for choline, a nutrient that, recently, has been proven to boost brainpower by speeding up the sending of signals

Narcissistic Personality Disorder involves arrogant behavior, a lack of empathy for other people, and a need for admiration-all of which must be consistently evident at work and in relationships.

high self-esteem are often humble

Narcissists tend to have high self-esteem

oncentrate on unlikely personal outcomes (e.g., fame) and may be convinced that they deserve special treatmen

whereas narcissists rarely are

tend to be defensive

He seems calm, even normal

his IQ is over 140

The subjects rate whether the picture is a moral violation on a scale of 1 to 5. Kiehl says most psychopaths do not differ from normal subjects in the way they rate the photos: Both psychopaths and the average person rank the KKK with a burning cross as a moral violation. But there's a key difference: Psychopaths' brains behave differently from that of a nonpsychopathic person. When a normal person sees a morally objectionable photo, his limbic system lights up. This is what Kiehl calls the "emotional circuit," involving the orbital cortex above the eyes and the amygdala deep in the brain. But Kiehl says when psychopaths like Dugan see the KKK picture, their emotional circuit does not engage in the same way.

He notes that alcoholics have brain abnormalities. Do we give them a pass if they kill someone while driving drunk?

Neuroscience and neuroimaging is going to change the whole philosophy about how we punish and how we decide who to incapacitate and how we decide how to deal with people

Just like DNA, he believes brain scans will eventually be standard fare. And that, he and others say, could upend our notions of culpability, crime and punishment.