Saturday, November 20, 2004

Wired News: Clear Pictures of How We Think

YES OF COURSE EVERTYHING WE DO AND THINK REQUIRES DIFFERENTUSES OF OUR BRAIN AND BLOOD!!!
Wired News: Clear Pictures of How We Think: "functional magnetic-resonance imaging, or fMRI.
This technique allows the measurement of the level of oxygen in the blood, and tells scientists which parts of the brain are most active. It can show, for example, the parts of the brain that operate when we fall in love and when we have food cravings. It has even recently revealed the differences in the brains of Democrats and Republicans.
But the technique also holds out the promise of answering deep questions about our most cherished human characteristics. For example, do we have an inbuilt moral sense, or do we learn what is right and wrong as we grow up? And which is stronger: emotions or logic?
Before fMRI, information about the parts of the brain involved in different tasks could only be gathered by studying people who had suffered brain damage from trauma or stroke, and seeing how their brain function changed. Now, the brains of healthy people can be scanned as they are given different tasks.
'fMRI has provided striking evidence in favor of some theories and against others,' said Joshua Greene, of Princeton University's Department of Psychology. 'But I don't think the real payoff has hit yet. That will come when we have successful computational theories of complex decision-making, ones that describe decision-making at the level of neural circuits.'
Greene, together with Jonathan Cohen, professor of psychology at Princeton, is using fMRI to look at the factors that influence moral judgment. "

No comments: