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Old February 24th, 2006, 01:48 PM
TomJrzk TomJrzk is offline
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Default Evolved Psychology - Brain Region Tied to Regret Identified

From www.SciAm.com
Quote:
Brain Region Tied to Regret Identified

It's human nature to sometimes regret a decision. Now scientists have identified the brain region that mediates that feeling of remorse: the medial orbitofrontal cortex.

Giorgio Coricelli of the Institute of Cognitive Sciences at the National Science Research Center in Bron, France, and his colleagues designed a functional magnetic resonance imaging (fMRI) experiment to monitor how people make decisions and feel about them after the fact. The team presented volunteers with two choices, one of which carried higher risk than the other, but had the potential for greater reward as well. After indicating their choices, the subjects were told the outcome of their decision. In some cases, however, the researchers also revealed what would have happened if they had chosen differently. Choosing the less lucrative option and learning the other one was better was strongly correlated with activity in the medial orbitofrontal cortex, which sits above the orbits of the eyes in the brain's frontal lobe. The amount of activity observed was also tied to the level of regret, which corresponded to the difference between the result of the choice made and that of the alternative outcome.

When participants were assigned one of two possibilities and thus felt no control over the outcomes, this activity was not observed, suggesting a feeling of personal responsibility helps govern OFC activity in addition to feelings of regret. The findings support previous studies involving patients with damaged OFC areas who do not experience regret and are also unable to alter their behavior to avoid situations that would induce the feeling. A paper describing the results was published online yesterday by Nature Neuroscience. --Sarah Graham
The human brain evolved and here is a part of the human brain that has an emormous effect on a person's psychology. What could be more devastating to a person's 'personality' than to lose the feeling of regret/remorse?

Run over a dog? "So, what?" Cheat on your wife? "Who cares?" Spoil all of your food? "Big deal." Lose the company's biggest client? "Doesn't bother me." Disavow Jesus Christ? "I don't care."

Is a 'good' person who has an aneurysm that wipes out this part of the brain suddenly an 'evil' person who belongs in the fires of Hell? Is a child born with an undeveloped medial orbitofrontal cortex an innately 'bad' person?

No, we behave as our brains allow. This is proof that there is no 'Free Will'.
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